Автор: Julius
Дата: 16-11-05 14:07
Този обектив не е предназначен за цифрово тяло!
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Ето малко сравнителни тестове ... снимано с Pentax *ist DS.
"очевидно Сигмата е по-добра, докато Флектогона има най-добра distortion корекция".
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Срещал съм мнението, че Флектогона криви малко повече в центъра, отколкото по краищата. ![[smilie11]](https://photo-forum.net/forum/smileys/smilie11.gif)
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Това също е интересно! - The CZJ Flektogon 2,8/20,even on digital cameras (I use it on a EOS 300D), is a superb lens when used at F8, F11 and F16. It has very deep colour saturation, excellent contrast ( even sometimes too much in my opinion) and an very good resolution. I made comparison with my CANON 1,4/24 L, which is not known to be a bad lens, and, at F8 or F 11 it is very difficult to see a very distinctive difference, even on a up to 150 X 200 cm magnified professional quality computer sreen image. Of course , the Canon 1,4/24 L is very distinctly better at F2,8 and F4, but the difference becomes very slight at F8 or F11, and sometimes or in some parts of the test images the Flektogon is better. In the field, the Flektogon 2,8 offers very good or excellent performances, even in situations with much difuse light, for example in pictures with much sky and hyghly diffusing clouds, which is not always the case with The Canon 1,4 /24 L. For this reason, I use more often my recent (it was constructed in 1986) Flektogon 2,8/20 N° 13 876 than the very expensive and sophisticated Canon 1,4 /24 L! The 4/20 diffuse much more than the 2,8/20 at F4 and F5,6, but at F11 it is absolutely superb, with high brilliance and résolution, very pure and subtle colour rendering and a very good image relief..In conclusion at F8 or F11 these 3 lenses are trully excellent (with a littel more resolution for the Canon L, what is normal for a 24 mm viz a 20 mm, and more contrast than the Flektogon 4/20 at F4 and F 5,6 for the 2,8/20 ) and they represent the top of present actual optical possibilities. Ir you do not need to take a majority of pictures at F 2,8 or F4, the choice of the Flektogon is an excellent one, and, very certainly, you will not do better with any present, and infinitely much expensive, lenses. Please keep in mind that focusing with super wide lenses is very ,very difficult, especially with the very bad digital cameras viewfinders.Don't take focusing failures for failures of the Flektogons or others.
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