Here is my Contax IIIa postwar coated Biogon 2.8/35mm tree picture on a
somewhat hazy day:
https://www.flickr.com/photos/mittelformat/31605133268/ ;
<https://www.flickr.com/photos/mittelformat/31605133268/>
This picture prompted me to sell this lens eventually. Admittedly, I also own
the modern Cosina/Zeiss ZM 2.8/35mm Biogon, so did not really need to keep both.
Should really reshoot this picture with the ZM 35mm lens and the AF Zeiss/Sony
35mm Sonnar which I bought this year for the Sony 7II to get the full
comparison of all three.
Jan
On Oct 21, 2018, at 9:22 PM, CarlosMFreaza <cmfreaza@xxxxxxxxx> wrote:
Richard:
The following image was taken with a Canon EOS 5D Mark II, a
very sophisticated digital camera and a Canon EF USM 24-70 multicoated lens.
Sometimes the flare has a an artistic purpose:
https://flic.kr/p/NfJCqY ;<https://flic.kr/p/NfJCqY>
Carlos
El dom., 21 oct. 2018 a las 15:54, `Richard Knoppow (<dickburk@xxxxxxxxxxxxx
<mailto:dickburk@xxxxxxxxxxxxx>>) escribió:
That is a lot of flare. The Sonnar has only six glass-air
interfaces, same as a Tessar. I wonder if the flare is from
something else such as haze in the lens or the cement beginning
to separate. Shine a strong flashlight through the lens to see if
there is any haze. Biotar type lenses have eight glass-air
surfaces and do tend to be flary. Flare from element surface
reflections increases geometrically with the number of reflecting
surfaces.
