De flesta fisheye objektiv är 180 grader
Cirkulära fisheye-objektiv ger en rund bild med en graders synvinkel i alla riktningar och ett svart område runt omkring. Diagonala fisheye-objektiv ger en rektangulär bild som fyller hela bildsensorn, men behåller den distinkta fisheye-effekten och förvrängningen. A fisheye lens is an extreme wide-angle optic that allows you to capture a distinctive and distorted view of the world. They are used in both stills photography and video recording, and you can even get adapters for some smartphones that allow you to simulate the dramatic ultra-wide effect.
Typically, the wide-angle of a fisheye provides a degree view of the world, and there are two main types — circular and full-frame. The circular type captures a degree view in all directions, and this means the central image area looks round — almost as if you are looking into a crystal ball — while the rest of the frame area is black. A full-frame fisheye has a difference appearance because it is only capturing the degree angle across its diagonal.
In other words, there is no black border around the resulting image.
Vad är fisheye-objektiv för fotografern?
Using a fisheye is a creative choice, rather than a practical one. The extreme curvature of the scene being recorded is highly stylized, although whether you like this effect or not is a matter of personal taste. Some photographers very much regard a fisheye lens as a novelty optic — something that is fun to own and use occasionally. It should be noted however, that a typical fisheye lens is not cheap, so it does require quite a financial investment.
You can use a fisheye for any subject — including landscapes, astrophotography, wildlife, architecture indoors and out and even portraits! Obviously in all cases you are distorting the world, but none more so than in portraits where noses will be made huge and other parts of the face smaller. Here its ultra-wide appearance can make an already impressive move look even more radical and eye-catching. The best camera deals, reviews, product advice, and unmissable photography news, direct to your inbox!
Join now for unlimited access. Andrew makes his living as a photographer, videographer and journalist. For 26 years he was a specialist magazine editor, the last 13 of which were on Practical Photography magazine. A long-time expert in photographic techniques across many disciplines, he's a self-confessed photo generalist, and a font of creative knowledge to capturing just about any subject, although he has a strong leaning to wildlife and travel photography.
Andrew's wide-ranging photography experience means he authors the long-running Photo Answers section for Digital Camera Magazine. His work as a journalist, guide and educator dovetails neatly into his commitment to Foto-Buzz - an online subscription community he founded, where Andrew writes articles, films tutorials and records blogs on all manner of photo-related subjects and techniques for enthusiast photographers.
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Fisheye-objektiv för att fånga ultravidt perspektiv, här är den grundläggande guiden
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