How to clean eye lenses. Cleaning contact lenses. Monthly deep lens cleaning tablets

What does a high-quality beautiful shot depend on? Exposure, composition, lighting, the skillful hands of the photographer, the lens, the camera and its parameters - all of this together plays a decisive role. But do not forget about the cleanliness of the lenses. The slightest speck or drop of water can distort the image and ruin the frame. In this article we will tell you how to avoid such situations, what products to use for cleaning photo optics, and what is included in the list of prohibitions that pose a threat to lens lenses.

How does dirt affect the image?

The most dangerous types of pollution are hard grains of sand and dust particles. The risk is not only that a foreign object will appear in the frame. Everything is much more serious. Small, hard particles that fall on the lens can scratch the protective layer, which is responsible for evenly distributing light. Such damage cannot be repaired; you will have to buy new optics. Therefore, when cleaning the lens you need to be as careful and careful as possible.

Professional photographers approach the process in detail: before proceeding directly to cleaning, they carefully remove the lens from the camera and examine its external and inner part.

Drops and stains from water are no less harmful to lenses. They create in the frame various effects: a correctly set exposure turns out blurry, sharpness and contrast are lost, glare, colored veils appear, and multi-layered halos appear around light sources. Drops, which inherently act as lenses, greatly distort the image. Proper cleaning will help avoid this.

Attention!
Mistakes are not allowed here. Inaccurate cleaning will result in stains that appear after drying. Such contamination poses a serious threat to photographs: photographs turn out to be overexposed, dark and light circles form in spots, and sharpness and contrast are lost. Therefore, it is important to use high-quality liquids, soft microfiber cloths and strictly follow professional recommendations on cleaning optics - we'll talk about this a little later.

The rating of dangers is completed by the most difficult to eliminate - fatty traces. A striking example The kind of contamination that every photographer tries to avoid is fingerprints. Why are professionals so sensitive to tactile contact with lens lenses? Fatty particles that get onto the optics become serious enemies of the frame.

Fat changes the refractive index of light in lenses, distorts the silhouettes of objects, leads to light exposure of the image, and makes the picture hazy and out of focus. The lens optics lose their working balance and stop synchronizing the signals specified by the camera parameters.

You must be extremely careful when choosing cleaning products, because there is a danger of damaging the top antireflective coating.

How to properly keep your lens clean

The lens is one of the most important elements of a camera, its eyes. For photographs to be beautiful and of high quality, the lenses must be clean and transparent, free from stains, streaks and dust. If the optics are not dirty and you do not notice any visible defects on its surface, you should not once again carry out the procedure. Lenses should be cleaned as needed.

The most important rule- clean external and internal surfaces quickly and accurately.

Turn off the camera and point it down.
Disconnect the lens and remove dirt using special devices (the next section of the article will be devoted to them).
Do not leave the lens in an open space for a long time - this will accumulate new layers of dust. Contaminants have been removed - connect the camera to the lenses and cover with a protective cap (hood).

Professionals who take good care of their photographic equipment buy protective filters that fit onto the outer ring of the lens and reliably protect against all types of contaminants: water, grains of sand, grease stains, etc. This is especially true for reportage photography or outdoor photo shoots, when the risk of damage to the optics is especially high.

Lens cleaners

A professional photographer’s arsenal must include special cleaning solutions and tools. Complete the kit with tools for various situations and degrees of pollution. You will need:

A soft brush that will remove small particles of dust from lenses and lens housings without damaging the surface of the optics.
Several dry soft microfiber cloths. Avoid exposing the lenses to paper and cotton napkins - they may scratch the brightening layer.
A miniature air blower that will remove a layer of accumulated dust without contact with the lenses. An excellent option is a children's medical enema or syringe.
Liquid for cleaning optics. The product can be purchased at any specialty store. Some photographers use regular ethyl alcohol. Vodka containing glycerin and other additives that can harm the antireflective layer of the lens is strictly prohibited.
Lenspen pencil. They can replace the use of an alcohol-containing solution and a microfiber cloth. The tool is equipped with a soft bristle brush on one side, and a sponge soaked in cleaning agent on the other.

How to clean a camera lens

Now we will tell you in detail how to clean various contaminants from lens lenses and what to use. Let's divide the recommendations into categories:

Dust

At first glance, it may seem like the most insignificant flaw that can be easily dealt with. But this is where her cunning lies. The army of microparticles may contain small glass fragments and other solid elements that are a potential threat to the surface of the lenses.

Improper dust removal often leads to mechanical damage, scratches. Therefore, it is better to try to avoid direct contact with the optics and use an air blower, which will blow away a layer of dust with a directed air stream.

Residues that have accumulated around the edges can be carefully removed with a soft brush. Do not blow on the lens under any circumstances - drops of saliva may get on the lenses, which are much more difficult to remove than dry dust.

Water splashes

Photo session under open air implies the mandatory use of protective ultraviolet filters. Splashes from fountains, raindrops and other possible dangers to your lens will not be scary. Cleaning the attachment is much easier than cleaning the photo optics. If water gets on the lens, you must act very delicately.

Take a microfiber cloth and wipe the surface in gentle circular motions, allowing the liquid to be completely absorbed. To avoid streaks, repeat the procedure using the dry side of the napkin.

If condensation occurs, do not rush to wipe it off. If time allows, wait for it to disappear on its own. If the situation does not tolerate delay, wipe the optics with a dry microfiber cloth as described above.

Fingerprints and grease stains

These contaminants are of the most complex type, requiring a thorough approach.

Advice.
Before you start removing stains, you need to prepare the surface and remove dust particles from it. That is, the first thing we do is blow off the microparticles using an air blower. Then apply an alcohol-containing product and wipe with a soft cloth using circular movements (from the center to the outer edges). The finishing touches are to go over the surface of the lens with a dry microfiber cloth.

Cleaning Lens Elements

It's not just the lenses that need to be in order. The lens also consists of other parts that also require care.

Rear lens

This part of the lens is much more difficult to get dirty than the outer lens. Often, photographers carelessly leave fingerprints on its surface. Such contamination must be removed immediately. If a dirty outer lens distorts the image slightly, then stains on the rear optical glass can significantly deform the image and lead to defocus.

The cleaning procedure is no different from cleaning the outer part: blow off dust particles with a rubber blower, brush off the residue with a brush, apply the product and wipe it with a soft cloth, then dry with microfiber.

Shank

Bayonet or shank is the element that connects the lens to the camera. As a preventative measure, experts recommend periodically wiping it with a damp cloth.

Advice.
This must be done both from the outside and from the inside. Dust that accumulates over time can get onto the camera sensor and become real threat to accelerate wear on the part and lens.

Inner space

Without good reason, you should not disassemble the lens piece by piece and try to clean each of the parts. Only professionals can do this. The natural accumulation of dust inside the case is natural and does not harm the operation of the device at all.

The only reason that requires disassembly and cleaning is the formation of mold, which can occur under improper storage conditions, in poorly ventilated areas with high humidity.

But even in this case, you should not intervene on your own. internal structure housings. Trust the professionals and take the lens to a service center.

Frame

To care for the case, a soft microfiber cloth is sufficient. Cosmetic wiping will give the camera a neat, well-groomed look. The only serious threat is grains of sand that can get into the moving elements of the lens. IN in this case professionals use a brush.

At the end of the article, let’s summarize and give 5 professional advice to help keep your lens clean and safe:

Be careful in removing dust. Before picking up a napkin, brush away the microparticles with a special brush or use a non-contact method - a stream of air from a mini rubber bulb.
Remove adhered dirt with a soft, grease-free brush. A rough paper napkin will cause scratches on the brightening layer.
When cleaning dust with a brush, movements should be quick and short, without pressure.
Drops should be removed from the surface of the optics as quickly as possible, before they dry completely.
When working with alcohol-containing solutions, make sure that the product does not flow into the bonding areas of the optical components. This may damage the lens.

The lens is the eyes of the camera, the key element responsible for the quality and semantic expressiveness of the pictures. Keep the lenses clean and be careful - the optics will serve you for a long time and will allow you to realize the most complex photo ideas.

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Contact lenses are a very convenient, but at the same time very vulnerable means for correcting poor vision. Delicate lenses are quite easy to damage or tear, and they become dirty easily. Modern lenses are made of porous hydrogel, which absorbs moisture well and gives the eye the ability to breathe. But along with all these advantages, hydrogel has such an unpleasant feature as susceptibility to contamination. Therefore, if in the matter of vision correction your choice fell on lenses http://www.linzshop.ru/. they need to be carefully looked after. Let's look at the main points of how to clean contact lenses.

To carry out lens cleaning procedures, you will need to purchase a container, special plastic tweezers and a cleaning solution.

Surface contaminants such as dust and lint can be easily washed off the lenses using the solution. But if you don't take care of them regularly, inside the lenses will accumulate dirt and this can be not only all kinds of specks, but also microorganisms. The fact is that the lens is constantly in contact with the surface of the eye, as a result of which organic deposits accumulate on its surface. This is fraught not only with the unsuitability of the lenses, but also with all kinds of eye diseases. Such negative consequences can only be avoided if you constantly clean and rinse your contact lenses. To carry out appropriate procedures in any optics, you can easily find special solutions that are safe for eye health. You need to choose only high-quality solutions and be sure to pay attention to the expiration date of the solution, otherwise the risk of serious eye diseases is very high. The easiest way to clean lenses is with multi-purpose solutions designed specifically for cleaning, rinsing, disinfecting, and storing lenses.

Before handling lenses, hands should be thoroughly cleaned with soap. It is better to remove and place lenses in a special container using plastic tweezers.

The cleaning procedure itself contact lenses occurs according to the following scheme. You need to pour fresh solution into a well-washed container, place the lens on your palm so that its concave surface faces upward and drop the solution inside it. Then index finger You need to press the lens a little and rub it. After cleaning, the lens is washed well in a cleaning solution.

Disinfect lenses by placing them in a container with fresh solution for at least 4 hours.

As we can see, how to clean contact lenses. there is nothing complicated. The main thing is to regularly carry out such cleansing procedures.

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The material used to make lenses, hydrogel, is very vulnerable to dirt. Any dirt: specks, specks of dust, grains of sand, microorganisms. As a result, the lens becomes contaminated from the inside and deposits accumulate on it. organic character. And since it is constantly in contact with the surface of the eye, the risk of eye diseases increases sharply. That is why. To preserve health, lenses need daily, or at least as a last resort weekly cleaning. One thing to understand before cleaning your contact lenses is that this vision correction tool is very fragile and can cause breaks, tears, and deformation if handled carelessly. Therefore, the process requires careful preparation.

Where to begin? Of course, with the preparation of tools: a container, plastic tweezers and a special solution. Each container has two compartments and each compartment must accommodate exactly one lens. If the vision in the right and left eyes does not match, it is better to purchase a container that has appropriate marks for each specific (left/right) compartment. Tweezers are needed for hygiene reasons: it is better to touch the lenses with them rather than with a thoroughly washed hand. The solution must be recommended by an ophthalmologist. It is best if it is multi-purpose, with the help of which not only the issue of how to clean contact lenses is resolved, but also how to disinfect them, how to store them and how to rinse them. When changing solutions and cleaning agents, you must pay attention to their compatibility.

The process of cleaning contact lenses, ideally, begins immediately after removing them and includes:

thorough hand washing,

washing the container and filling it with fresh solution,

removing the lens, which is placed on the palm so that the concave surface is at the top,

dripping the solution onto the lens, lightly pressing on it with your index finger,

then thoroughly rinse it in the container solution.

The lens, once in the container, must be completely immersed in the solution. To disinfect it, it is recommended to remove it from the solution with tweezers, pour in a special disinfectant and leave it alone for at least four hours, and preferably overnight. To make your task easier, you can purchase several containers at once for different purposes.

There is another way to clean contact lenses. A protein purifier tablet is dissolved in a container compartment filled with fresh solution. The lens is then removed, cleaned and washed, and then placed in the compartment. The same steps are repeated with the other compartment. The container is closed. Shake and leave alone for fifteen minutes. If the lenses are heavily soiled, the time increases, but does not exceed two hours. Cleaned lenses are removed from the container and washed with the solution. The solution is then replaced with a disinfection solution.

Naturally, you should not skimp on solutions when cleaning lenses. Its expiration date must be carefully checked. Lenses are wiped on both sides. In this case, both the lenses and the neck of the container with the solution must be clean before putting them on.

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Contact lenses are a very fragile means of vision correction. They can be damaged quite easily: they can become deformed, torn, or become dirty. Almost any modern lenses are made from hydrogel material. It is porous, allows the eye to breathe, absorbs moisture well, but is also susceptible to dirt. If you choose contact lenses as an everyday accessory, take care of proper care of this accessory.

Container
- plastic tweezers
- cleaning solution (or saline solution).

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Contact lenses are excellent at absorbing dirt. And the problem lies not only in surface particles of dust and hairs, which can be easily washed off with a solution. Lenses, if not taken care of, become dirty from the inside. These can be either specks, grains of sand and various substances, as well as harmful microorganisms. Constant contact with the surface of the eyeballs leads to the formation of organic deposits on the lenses. These factors not only render the lens unusable, they increase the risk of developing eye diseases. To avoid loss of health and vision, lenses (especially long-term wear) should be washed and cleaned daily or weekly.

To do this, purchase special solutions approved by ophthalmologists. Their composition is designed taking into account safety requirements for eye health. But low-quality products with an expired expiration date can provoke serious illnesses, up to blindness. The simplest and effective method contact lens care - use of multi-purpose solutions. They are designed for storing, cleaning, disinfecting and rinsing contact lenses.

Before each interaction with lenses, wash your hands thoroughly with soap and water. Remove and place lenses in the container using plastic tweezers.

Cleaning contact lenses is carried out in the following sequence. Fill the washed container with fresh solution, place the lens on your palm with the concave surface facing up. Drop the solution onto the lens, lightly press and rub the surface of the lens with your index finger, and after cleaning, rinse the product thoroughly in the solution.

To disinfect lenses, remove it from the solution using tweezers, pour fresh solution into the container and immerse the lenses in it for at least 4 hours (preferably overnight). The lenses are ready to wear.

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Cleaning lenses after clouding

Hello!
Tell me how and with what to clean the lenses after they become dirty and, as a result, cloudy?

For two years I wore 2-week Johnson for Astigmatism silicone hydrogel lenses, the material Senofilcon A is a non-ionic polymer that is resistant to deposits.
There were no problems. IN Lately lenses began to deteriorate faster. I read about this on the Internet and decided to clean the lenses with peroxide cleaning. But either they have already crossed the line and it is no longer possible to clean them (although the deadline has not yet passed), or this cleaning does not help in my case of contamination (
Is enzymatic cleaning deeper?

Although the lens becomes cleaner, you can see how moisture runs off its surface and it becomes dry - hence it is opaque to the eye. We can see this on the surface of dishes or glass, how the surface remains dry due to the flow of water over it. Why is this happening? And is it possible to change this so that when soaking in the solution or blinking, the lens always remains wet?

What to do? what to do? Is this cleanable? or vice versa, does this mean that the lens has been stripped of some of its coating?

By searching on the Internet, I see that I do not have such symptoms. If only not the very initial stage.

We are not talking about the same couple, of course. The fact of the matter is that a planned replacement was carried out, and I used to throw away even completely normal lenses. and then they began to deteriorate faster (

Some time ago, I lost a lens in my eye (it’s difficult for me to remove them - I remove it by moving it towards the bridge of my nose). Out of ignorance, I thought that it was still in the eye and looked for it there for a long time. The sensation in the eye was such that it seemed like she was there. Completely tired, I decided to calm my eyes, even if she was there. The next morning it felt better, and then after a couple of days, I realized that it most likely wasn’t there (it probably fell out right away), because the eye calmed down. And from then on, by the morning, for some time, discharge formed, which is what normal people usually have, but to a greater extent. I decided that it was all because of my injury to the eyelid and mucous membrane.

Time passed, and by the morning everything seemed to be fine with me. But I noticed that the lenses began to deteriorate much faster. And in both eyes. Yes, I understand that there is a risk of transmitting infection from one eye to another through the hands.
But what is it and will it go away with time?

And further main question(within the topic). How do you clean a lens that seems to be cleaned, but the solution doesn’t stick to it? A new lens is not a solution, no matter what. the speed of spoilage is such that it’s time to switch to one-day products, and this is more expensive financially. Well, if only for a while, then yes. You can wait it out for one-day periods. You can wear less. But how to clean them? and is this cleanable? Maybe this is, on the contrary, a cleansing?

It seems to me that this is already stripping - due to the deposited protein and its subsequent cleaning, some kind of layer of polish is removed or something. And this is already irreversible for the lens. Well, what if someone has a solution. Share if anyone has it.

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A few questions for now -
Does this happen with lenses from the same packaging? How exactly did you clean it with a peroxide solution?

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Well, if this is cleaning, then the solution here (for me) is to carry out peroxide cleaning before severe contamination appears, so that during mechanical cleaning with your finger you do not damage the lens and do not remove its polish.

Do I understand this decision correctly?
It is clear that this is provided that my eyes calm down after a while. And if not, then you need to reduce the use of lenses in principle, perhaps for a while.

Message added at 23:48

Still, it’s better to go to the reception. There may be no symptoms other than rapid contamination, but upon examination, a specialist will see changes in the condition of the eyes.

Click to expand.

Yes, I understand(
I went to the appointment, but they didn’t warn me that I had to be without lenses for 2 hours and they sent me away without an examination. Now we need to get back together. Oh, if only they could tell you exactly what’s wrong with the eyes. but there will be an intuitive solution there, too. there are no obvious signs of the disease.

A few questions for now -
Does this happen with lenses from the same package?

Click to expand.

No, from different ones. And I also remember from the packaging of the first quick stains the normal behavior of the lenses at the beginning of using this packaging.

How exactly did you clean it with a peroxide solution?

Click to expand.

I know that I need to clean it with AoSept_om. But I wanted to try it quickly (there is no access to AoSept within the radius of my stay right now), and I used regular hydrogen peroxide. And now I see that moisture does not linger on the lens.
I know about the burn caused by unneutralized peroxide. And while I’m just reading it, I’m trying it out.

Enzyme cleaners definitely don't work.

Click to expand.

Forget about regular peroxide. Forever. (I click the flash like in MIB).

Click to expand.

Do you think Aosept will clean cleaner? I’m still interested in the result of the cleaning itself.
In theory, Aosept almost immediately neutralizes the peroxide with a catalyst, and the effect of the neutralized peroxide is even weaker than with just peroxide.

Open a new pair of lenses, buy Aosept and strictly follow the instructions. Do not clean the lens mechanically yet (maybe you are rubbing it too hard).
If this pair experiences early contamination -appointment to the doctor.
It’s better to go to an appointment first, maybe treatment will be needed there.

Click to expand.

Well, I wear new lenses periodically. The only thing left to do is try to clean it with Aosept. I'll try.
And I need to see a doctor, so I’ll go.

Annochka. change the solution, for example to UNICA SENSITIVE. The lenses may not be hydrated enough.

Click to expand.

Don't forget that I have silicone hydrogels - Senafilcon material from group 1. Could they be suffering from insufficient hydration? Hardly. And my solution is Bio True (B&L), which seems to be good.

But I’m actually wondering how the surface of the lens can become so water-repellent? It's almost as if the surface was oiled, you know? but at the same time the surface can be completely degreased. I can even feel it with my fingers after peroxide - fat is unlikely.

Some users of peroxide solutions note what you describe.

Click to expand.

But moisture rejection occurs even before peroxide cleaning. That's why I started trying peroxide.

Click to expand.

Certainly. As for peroxide - why not? just because there is a special solution produced specifically for this? Is there evidence that Aosept has a chemically more favorable composition?

And about enzymatic cleaning, I still don’t understand why Ice-loo said it’s not allowed?

Lenses have to be cleaned from time to time - you have to live with it. The only lens that does not need cleaning is the one that is never used. However, there is nothing complicated in cleaning lenses - this is a routine procedure accessible to any clean amateur photographer.

Cleaning can be postponed

This may sound strange, but lenses should be cleaned as rarely as possible. No matter how careful you are, cleaning your optics always runs the risk of scratching either the glass itself or the anti-reflective coating. Yes, you need to clean your lenses, but the urgent need for this rarely arises.

The fact is that a small amount of dust on the front lens of the lens does not affect the image quality in any way. For quality to begin to noticeably degrade, the lens must become alarmingly dirty.

Prevention

A very good habit is to use protective filters. A high-quality filter with multi-layer coating has absolutely no effect on the sharpness and contrast of the image, but at the same time completely eliminates the ingress of dust and dirt onto the front lens of the lens - its most vulnerable element. It is much easier to clean the filter from dirt, and an accidental scratch on the filter will upset you much less than a scratch on the lens.

Another useful accessory is a lens hood, which not only combats flare, but also does a good job of protecting the front lens from mechanical impact (including from the photographer’s dirty fingers).

The cleanliness of the lens largely depends on the shooting conditions. If you work exclusively in a studio, then, with some care, you can go years without cleaning your equipment. There is no need for filters here, the main thing is not to grab the lens with your fingers. Another thing is shooting outdoors, where dust, sand, rain, snow, and in general, all imaginable misfortunes await you. What shall we say? Don't shoot at all? Nonsense! They are afraid of wolves - don’t go into the forest. No real photographer will refuse to shoot in no matter how harsh conditions if they promise him a beautiful shot. Just be careful, use protective filters and a hood, and try not to uncover your equipment unless necessary.

Lens cleaning accessories

I usually carry a microfiber cloth and a small soft hair brush with me. In 99% of cases, this modest arsenal is enough for me. In addition, at home I keep a balloon, an extra supply of wipes and a flask of rubbing alcohol. How to use all this will be discussed below.

Instead of ethyl alcohol You can use methanol, isopropanol or a special alcohol-containing liquid to clean optics. In no case should you use vodka - glycerin and other substances are usually added to it, improving the taste, but worsening the cleaning properties.

Instead of a special air bulb, you can use a regular medical enema or syringe to blow dust off the lens.

Many photographers like the Lenspen, which has a dust brush on one end and a cleaning sponge on the other. However, I was somehow not impressed with the Lenspen, and microfiber remains my main tool for cleaning optics.

I do not advise you to use paper or cotton napkins. Compared to microfiber cloths, they have a rougher texture and are easier to damage the lens coating.

Front Lens Cleaning Procedure

Don't think that the other parts of the lens don't need cleaning - they do - it's just that the front lens needs to be cleaned much more often, and therefore we'll start the conversation with it. If the front lens is covered with a protective filter, then everything said below is also true for the filter. The complexity and duration of the procedure will largely depend on the degree and nature of the contamination.

Dust

As already mentioned, a moderate amount of fine dust on the front lens of the lens is quite acceptable and does not affect image quality. If there is a lot of dust, then it should be carefully swept away with a brush or blown off with a blower. You should not blow on the lens yourself, as there is a risk of spitting on the lens, after which the dust will turn into dirt, which is somewhat more difficult to get rid of.

Minor dirt

By minor dirt I mainly mean water splashes and light fingerprints.

Before wiping the lens, you need to get rid of any dry dust on it using a brush or blower. If this is not done, tiny grains of sand left on the glass may cause scratches.

After dusting off the lens, take a microfiber cloth and gently wipe the lens. You need to act very delicately, almost without pressure. In many cases, the lens does not even need to be rubbed - just a light dab is enough. Microfiber perfectly absorbs water, dirt and grease due to the capillary effect, and, unlike conventional napkins, does not leave behind fibers.

If the front lens becomes covered with condensation due to temperature changes, it is not necessary to wipe it. On clean glass, condensation dries almost without a trace. However, if you don’t have time to wait for the foggy lens to dry, you can easily use microfiber.

Serious contamination

A really dirty lens, on which fingerprints and dirty streaks are clearly visible, needs wet cleaning.

In the field, I just gently breathe on the lens and then wipe it with microfiber. In the vast majority of cases, this is enough to deal with any dirt.

At home, I prefer to use rubbing alcohol. Microfiber should slightly moisten it in alcohol, and then wipe the lens in a circular motion from the center to the edges, after which you can go over the glass again with the dry part of the napkin.

I clean protective filters with anti-reflective coating in the same way. I sometimes just wash filters without coating warm water with soap (of course, after first removing the filter from the lens), and then wipe it dry.

Scratches

What to do if you scratch your lens? Nothing. Continue shooting as you did, but be careful with your optics in the future. Minor scratches on the antireflective coating have virtually no effect on the image. Large, deep scratches indicate gross negligence in the work, but even they usually only show themselves in backlight.

Most often, scratches are the result of inept attempts to clean the lens, and not at all due to unnecessarily harsh shooting conditions.

Particular care should be taken with ultra-wide-angle lenses. Due to the large depth of field, scratches on the front lens can be quite noticeable. Worst of all, many ultra-wide-angle lenses not only have huge convex front elements that are very easy to scratch or stain, but also do not have a thread for a protective filter.

Cleaning other parts of the lens

If you have excess free time, you can not limit yourself to cleaning only the front lens of the lens, but also pay some attention to its other details.