Originally posted by nater 
I know but they were without any bokeh. That's not a problem now, after last night I have checked those links in the Japanese site and pixelpeeper.com and I'm interested to find the FA35.
Originally posted by rawr If you look at any technical review (eg lenstip, photozone) where they've reviewed both lenses, the Sigma 30 1.4 has FAR softer corners than the FA 35. The Sigma 30 1.4 would not be my choice for landscape.
I have tried one copy of this lens and you know what - it is not soft in corners because of tha fact that the focal plane of this lens becomes a semi sphere when you focus close to infinity, the closes you get the stranger it gets. Have a look at the bokeh of this lens when it is close focusing and when it is focused to a bigger object like human which is standing far from the lens(for example 3-4m) in the corners the bokeh becomes like arrows that's because it is stretched by the deformation of the focal plane(which transforms in semi sphere). Actually you can have sharp edges even in corners, even at 1.4 but the center will be out of focus. I have some test shots to prove it, must find time to show you them. The FA35 holds much more plane like focal plane and that's why the focus in good in corners when you shoot landscape or resolution chart. It's a strange that even the FA have this problem, one of the links I have followed from pixelpeeper.com lead me to the profile of a man who have used K5 and FA35 to shoot in the mountains many landscapes. One of them which I have posted here, if you look it on 100% the center is sharp in infinity but the corners are sharp closer and in the infinity they get softer. It seems that this is a problem for those wide angle lenses.
Last edited by simbon4o; 07-08-2012 at 10:27 PM.
Post #4 by Deimos
Similar Threads 
