Between the fourth and fifth issues of "" I decided to write a short but very useful article. Which of you filmed fisheye, they know that this lens distorts the image in a very specific way, “pushing” the corners towards the center.
Often this distortion looks interesting and adds an artistic effect to the frame, but sometimes you may want to make a “fishy” photo “ linear“, that is, classical. Without dented corners and with straight verticals.
Corrected fisheye distortion (click to enlarge) This desire may arise after the shooting. urban landscape And interior, but there is one more reason: when correcting a fisheye photograph, you can achieve extremely wide viewing angle, which no wide-angle lens can provide. And such photographs with “stretched” edges often have their own charm.
Thunderclouds over Pyatigorsk - corrected distortion So, you have a fisheye photo and you want to fix it at all costs by eliminating the potbellied look.
You will need it yourself original photo And PTGUI program. Nothing else.
Which requirements presented to the original photograph? The most important thing is she should not be cropped! To successfully correct distortion, you should not use cropping or any other perspective correction, otherwise the result may be unpredictable.
Fisheye: Fisheye is a type of projection. Fisheye (lens) is an ultra-wide-angle photographic lens that has an image angle close to or greater than 180°. Fisheye (optical system) (“Maxwell’s fisheye”) ... ... Wikipedia
Fisheye "Fisheye". (1) An area on a steel fracture surface having a characteristic white crystalline appearance. (2) Welding defect. (Source: “Metals and alloys. Directory.” Edited by Yu.P. Solntsev; NPO Professional, NPO Mir and Family... Dictionary of metallurgical terms
fish eye- beer... Dictionary of Russian argot
This term has other meanings, see Fisheye ... Wikipedia
An absolute optical system representing an inhomogeneous spherically symmetrical medium, characterized by a refractive index n(r)= frac(n 0)(1+(r/a)^2), where r is the distance to the center of the system O, n 0 and a parameters. Each ray represents... ... Wikipedia
This term has other meanings, see Fisheye. Fisheye Film Festival emblem international festival amateur films. Participating countries: Russia, Mongolia, South Korea, Japan. Organized by the television company "AIST" (city... ... Wikipedia
This term has other meanings, see Fisheye. Camera "Kyiv 60 TTL" with lens "Arsat" 3.5/30 (Zodiac 8) ... Wikipedia
This term has other meanings, see Fisheye. Beam path and image construction in Maxwell's fisheye "Fisheye" ... Wikipedia
Beam path and image construction in Maxwell's fisheye Maxwell's fisheye (1854) is an absolute optical system representing an inhomogeneous spherically symmetrical medium, characterized by a refractive index, where r is the distance to ... Wikipedia
"fish eye" in paintwork- 69 fisheyes in paintwork: Presence on the surface paint coating craters, in the center of each of which there are foreign particles. Source: GOST 28246 2006: Paint and varnish materials. Terms and definitions original... ... Dictionary-reference book of terms of normative and technical documentation
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- DIY Collection of Amazing Devices and Inventions 264 Stunning Projects, Pirozhkova L. (trans.). Turn on the soldering iron, take the drill - and get to work! From a tiny electric musical instrument, the theremin, to a “beer barrel” made from a large watermelon; from automatic feeder For…
- Aniskin and the blackmailer, Maxim Kurochkin. On the state farm with unusual name`No-Pasaran` is in commotion again. It’s not a thief, not a scoundrel, not a murderer, but...Fish Eye! True, none of the villagers really knows what he is like. Because no one...
I am glad to welcome you again, subscribers and guests of my blog. I’m in touch with you, Timur Mustaev. On the blog pages you could already read an article about, as well as about. It talks quite well about their types, features and purpose. Today’s article will tell you what a fisheye lens is or, as it is called in the West, fisheye.
To begin with, it’s worth identifying what this wonderful set of lenses is, and why it’s called that. To be precise, it is one that has a viewing angle close to 180 degrees. IN general classification it can be designated as ultra-wide-angle. Where did the name come from? It's simple: the principle of its operation is similar to the structure of the eye of fish.
Can fisheyes differ from each other?
Certainly. Moreover, there are several types of them.
- The first and most common is circular. Its peculiarity is that it does not cover the entire area of the frame, but only shows an inscribed circle. Why is it needed? For interesting panoramas or a 360-degree panorama effect. It will also do an excellent job of capturing the sky.
- The second type is diagonal. Why diagonal? The 180-degree viewing angle is distributed horizontally across the frame, resulting in it being completely filled. This time, the full frame fits into the maximum viewing angle of the lenses, and not vice versa, as in the previous case.
- The last type is mechanisms with a viewing angle of more than 180 degrees. There are very few such lenses, but they exist, and you shouldn’t forget about them either.
Why were such lenses invented?
In general, they have been used for quite a long time: approximately since the beginning of the last century. But fisheye was used extremely rarely: photos of small streets, narrow corridors, cramped rooms. Now it is actively used by athletes, most often representatives of street disciplines, for example, BMX. Why Fisheye?
It's simple: it allows you to capture a large space around the athlete, which allows you to better convey the atmosphere of performing a trick, capturing the architectural structures that served as a support for a bicycle, roller skates or the soles of sneakers. In addition, this solution is relevant for both photo and video shooting.
In addition to sports, fisheyes are used in architectural photography, as before, as well as to create 3D panoramas of any objects. By the way, to create the Goolgle Earth service, the corporation used Fisheye.
Fisheye lens design
Due to the location of the lenses in the mechanism, images taken with it will have several disadvantages. The first, most obvious one is barrel-shaped. The image will be greatly stretched forward, and the background will seem too far away. In other words, this is something that manufacturers consciously undertake.
Yes, this distorts straight lines, “distances” the background from the foreground, enlarges the latter, but this allows you to get rid of the limitation of the viewing angle, which is what most people need target audience such lenses.
Another drawback relates to the Fisheye hood. As a rule, their fastenings are extremely small. They may not be suitable for both Canon and Nikon, and adapters that increase its size will also make the lens hood part of the frame, so manufacturers usually install them during production.
This can be called the reason for the impossibility of installing different filters on the lens. In addition, they will be of little use if installed in front of convex glass. Because of this, gelatin filters are usually installed behind the last lens, making them impossible to quickly replace. To correct the problem, manufacturers began to equip the Fisheye with a rotating filter system consisting of a standard set of colors.
What can such a lens be mounted on?
There are many variations of the fish eye. The most common is the fisheye version for the phone. These are sold in almost every mobile store and cost pennies, which is why they are very easy to buy. There is a huge selection on Aliexpress. This is what a search on Aliexpress gives for the request: fisheye lens for phones.
There are also models for iPhone, and they are well equipped. Sometimes doubt arises that the photo was taken on an iPhone. They can also be found by searching on Aliexpress, fisheye lens for iPhone. They cost mere pennies, but the results are obvious.
To avoid buying a fisheye lens for your phone, some craftsmen manage to create them with their own hands. Sometimes the result exceeds all expectations, but more often than not, such crafts are not successful.
Don’t forget about cleaning your lenses, whether it’s on your phone or your camera. Fingerprints, dust and other debris, better clean up special pencil, and you can also use special cloths for cleaning. I have both. I also bought these on Aliexpress.
Do you want to understand your SLR camera? Want to take amazing photos? Do you want to finally understand which button on the camera does what? Then the video courses below will help you. The best video courses for beginners!
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In general, the article can be finished. I told you everything I knew about Fisheye in its general understanding. If you were interested in the article, tell your friends about it, subscribe to my blog if you haven’t already, and continue reading my articles. They will tell you about many photography techniques, its technical and practical aspects. See you later!
All the best to you, Timur Mustaev.
Find of the day: we read aloud the poems of the oberiut poet Nikolai Oleinikov at work. Until now I only knew his famous “fried crucian carp”, “siskins” and “anti-Semitic beetle”, but there was a wonderful selection of other poems.
N.S. Boldyreva
Fried fish,
Dear crucian carp,
Where is your smile?
What happened yesterday?
Fried fish,
My poor crucian carp,
You could live
If it weren't for passion.
What ruined you?
Thrown here
Where it's not so nice
Where is the frying pan?
I remember you as a child:
You laughed
They laughed loudly
Under the wave of the Neva.
Ladies of crucian carp
Adored you -
Scales and dimples
Yes, your fish eye.
Busts of fish -
Simply beautiful!
It's hard without smiles
Look at those places.
But one morning
I met you
In the shine of mother-of-pearl
Marvelous madam.
The lady lured
you to your house,
But that lady's
The weak one was smart.
Who is he dealing with?
Oh, I didn’t understand -
Seduced, boldly
She kicked me out of the house.
And the unfortunate man decided
Die immediately.
He rushed forward, passionate.
He rushed into the net.
Evil people took
Fish from nets,
Sent to the stove
Simple, no fuss.
They ripped open with a knife,
Guts ripped out
Salted with salt
They poured flour...
But life is beautiful
I drew myself to you.
You were considered passionate
I'll give you some in between...
White currant,
Black trouble!
Don't walk the crucian carp
Never with my dear.
Don't go to the crucian carp
Warm water
Don't look at the clock
Hurrying to the other.
Feather-fins
He doesn't move.
Your love< корюшкою>
He won't name it.
So make some noise, you muddy one
Neva water.
Don't let the crucian swim
Nowhere else.
HENRIETTA DAVYDOVNA
(Before Andronikov, the editorial secretary was Henrietta Davydovna, a woman of extraordinary beauty, about whom there were many disputes)
I'm in love with Henrietta Davydovna,
But she doesn’t seem to like me -
She issued a receipt to Schwartz,
I don't think there is a receipt.
I hate the damned Schwartz,
For which she suffers!
For him, for the poor mind,
She wants to get married like a fish.
Dear, beautiful Grunya,
Stop loving him, boar!
The fact is that Schwartz has nothing in his goiter.
Doesn't shorten your breath like I do.
He is a scoundrel, a seducer, a scoundrel -
He just wants to love women...
And Oleinikov, a modest handsome man,
Continues to be out of favor.
I'm handsome, I'm squeamish, I'm sassy
I have a lot of different ideas.
I have no thoughts of scorch marks,
How does this Indian have them!
Love me, love me!
Stop loving him, stop loving him!
If it weren't for Natasha -
I would have run home.
If it weren't for Natasha -
I would waste my life with vodka.
The day I don't see you
It's a lost day for me.
What then is the bloom of a rose,
What is lily of the valley and lilac to me!
But when with you
I'm among your chains
I love plantain too
I also like burdock.
CLASSIFICATION OF WOMEN
Mare wife -
To satisfy the ardor.
Cow wife -
For a quiet family home.
Bitch wife -
For nerve irritation.
Baby wife -
A little bit of everything.
The sun disappeared behind the mountain.
A sycophant digs a hole in the darkness of the night.
Maybe it will dig, maybe it won’t.
There is still no happiness in the world.
Once upon a time, beautiful Vera,
Throwing away the clothes,
Together with your boyfriend
I laughed until I cried all night.
It was really fun!
It really was funny!
And the blizzard howled outside the window,
And the wind knocked on the window.
I lost sleep
Stopped eating -
I'm very much in love
A gentle creature.
That creature sits
It's hot on the window.
For him my passionate look
Does not mean anything.
This creature
There is no sweeter or more beautiful
No more versatile
Our dear Lida.
The first time I've seen you
I just saw
All the beauties at the same hour
I hated it.
Except you.
I felt a burning sensation
I noticed in my chest,
And since then the genius
The heart is crippled.
Something burst in my heart,
Something broke
The wine cork popped,
There was an echo in my ear.
And since then I've been suffering
Remembering you,
Mighty beauty
The power of your eyes.
Your eyebrows are black
Gloomy as clouds
Moles - currants,
Hands are kisses.
In wild lust
I spend the night -
Carry on in patience
I can't stand it anymore.
Have pity, Lydia,
New Ovid.
To my atrium
Drop some mercy!
So that your consciousness
Suddenly it would become clearer
So that my food
Recovered again.
MESSAGE TO AN ARTIST OF ONE OF THE THEATERS
Without clothes and with clothes
I saw you yesterday
Feeling like before
Never felt it.
Above the circulatory system,
Branched out like a bush
Vorobyov is faster than lightning
A flock of feelings rushed by
No doubt - no malice,
Poisonous blood
And the unfortunate one, to the grave
Unbreakable love.
And other feelings too
The name of these feelings is passion!
- Lisa! Artist!
Let me come to you!
A TRUE THING THAT HAPPENED TO AN ACTOR IN TSCO
(A poem castigating debauchery)
I came to visit, drank vodka,
The owner is holding back his ardor.
But the vodka was drunk.
The hostess captivated me.
She seduced me like this:
“We’ll set up a bivouac with you,
Believe me, I'll make you laugh:
I'm as good as a tarantass."
Breathing heavily from passion,
I undress, rustling.
Entering a dangerous game
I thought: “What if I die?”
Indeed, not a minute has passed
How something left me.
This something was soul.
I died. The work of the organs stopped.
And so, throwing away the burden of life,
I'm lying cool as a watermelon.
The watermelon is cut. He was rolling
He lived - and suddenly stopped.
A flea bone sleeps quietly in it,
And his ear drips.
But it never dripped!
These are the consequences of debauchery.
FROM THE LIFE OF INSECTS
In the halls of red currant
One hundred and seventeen beetles live,
Beautiful green grasshopper
Four fleas and fifteen crickets.
What kind of air do they breathe?
How nourishing and clean the food is!
How magnificently it sways over them
Currant your grapes!
ANTI-SEMITE BEETLE
PICTURE BOOK FOR CHILDREN
1st PICTURE
Small caliber bird
It's called a hummingbird.
2nd PICTURE
Shakes his legs
Butts with horns,
It buzzes with its wing:
Zhi-zhi-zhi-zhi-khid! -
The anti-Semitic beetle.
3rd PICTURE
Beetle talking to Ladybug
Ladybug:
There was no more urine in the forest,
We lost our lives:
Abram under every bump!
Bug:
- Yes, sir... A lot of liquid!
4th PICTURE
Grasshopper's autumn complaint
And the sun does not warm,
And the birds don't whistle.
Only Jews
They sit on branches.
5th PICTURE
Grasshopper's winter complaint
Oh, these little Jews!
Oh, these scoundrels!
Their wives and daughters
They only wear dokhas.
Their dohas keep them warm,
Doha and caress,
Who are not Jews?
They all die.
6th PICTURE
Conversation between a Beetle and a Butterfly
Bug:
- Butterfly, butterfly, where is your daddy?
Butterfly:
- Our daddy drowned.
Bug:
- Butterfly, butterfly, where is your mommy?
Butterfly:
- Mommy was eaten by the Jews.
7th PICTURE
Death of the Beetle
Beetle (disappointed).
Sparrow - Jews,
Canary is Jewish
Ladybug is a Jew,
Termite is a Semite,
Rook - grach!
(Dies.)
Lived in an apartment
Forty four
Forty four
Frail siskins:
Chizh-alcoholic,
Paranoid siskin,
Chizh-schizophrenic,
Simulating siskin.
Chnzh-paralytic,
Syphilitic siskin
Senile siskin,
Siskin is an idiot.
LIST OF COSTS PER DELEGATE
Roop -
For soup
Three rubles -
For potatoes
Five -
On the grouse
Ten -
To the partridge
Sotka -
For vodka
And a thousand rubles -
To satisfy passions
REFERENCE:
Nikolai Makarovich Oleinikov (1898-1937) is one of the most original and prominent representatives of the Russian poetic avant-garde of the 1920-1930s. A subtle lyricist and parodist, satirist poet, philosopher, and original stylist.
Together with D. Kharms, A. Vvedensky, N. Zabolotsky, D. Levin and others, he was a member of the group “OBERIU” (Association of Real Art). Created children's magazine"Hedgehog" (Daily magazine). Edited two children's magazines: "Hedgehog" and "Chizh" (Extremely interesting magazine), worked together with Marshak, Schwartz. Andronikov, Chukovsky, Zhitkov, Bianki.
Under the pseudonym Makar the Fierce for a long time published a “Map with Adventures” in “Hedgehog”.
In 1937 Oleinikov was arrested, after his arrest the NKVD destroyed the entire editorial office of children's literature. Oleinikov and his “minions” were accused of creating “a counter-revolutionary sabotage gang that deliberately set a course for sabotage in children’s literature.”
Oleinikov was shot on November 24, 1937 in Leningrad as an “enemy of the people.” Rehabilitated posthumously in 1957.
During his life, only three of his “adult” poems were published, and he was excluded from the history of literature for decades. His works were not published; most of them remained in manuscripts and lists preserved by the poet's family and friends.
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