as a long-time CR reader I finally "dared" to create my own thread. As this is my first appearance here, perhaps some words of introduction. I got started in photography about 5 years ago. Now I still consider myself an amateur, however with some experience and enough mistakes to learn from :-). My main scope of interest is macro, event and street photography. Currently I reside in Augsburg, which is a city not far away from Munich (yes, the Oktoberfest city).
I have to admit - so far I was to lazy to create my own photo gallery, but here are a couple of shots, I've taken recently: http://bit.ly/QiISBG
BTW... sorry for my English, I'm neither native English speaker nor even German :-).
OK, but why am I actually disturbing you? There is no better motivation than a problem. Recently I finally decided to get a lens, which I was considering for quite a long time - Canon 85mm 1.2 II. With money spent and pangs of conscience got rid of, it eventually found its place on my table. I made focus adjustments as usual and went shooting. The walk ended with some not very well-thought-out shots but it was not essential this time. While considering the images on a bigger screen I spotted a phenomenon, which did not let me alone since then. It's bokeh fringing, which seems to be very pronounced, when wide open. Based on several reviews, I was of course aware, that this lens is prone to LoCA issues, but frankly speaking I didn't expect it to be such extreme at f1.2.
I did some investigation on this and also went through the pictures from this lens posted here, but after all I'm still unsure, if it should be considered normal.
Here are some of my samples, which display the issue:
- full size, f1.2: http://affemitkamera.de/temp/85mm_f1.2_full_size.JPG
- 100%, cropped, f1.2: http://affemitkamera.de/temp/85mm_f1.2_crop_100.JPG
- full size, f2.8: http://affemitkamera.de/temp/85mm_f2.8_full_size.JPG
- 100%, cropped, f2.8: http://affemitkamera.de/temp/85mm_f2.8_crop_100.JPG
Would be great, if you could take a look at it and share your opinions.
Thank you in advance!