Originally posted by Steelski Where did you get the F8 information, the post below (post 177 says something about F8, but I dont think that refers to the photo as its posted after that comment) and it certainly looks wider than F8.
I started a similar thread because I did not know it excisted. and there is a link to this thread. People there are saying that the huge lens hood would cause vignette at FF, but I doubt it as the angle of view is only 36.2 horizontally. whats your take on it.
Steelski, I do not want to discuss another forum too much. So, let me make the following, short comments:
- You're right, post #177 said f/1.4. I don't remember why I thought it is f/8. But too tiny to evaluate resolution anyway.
- There is a new post #234 - #237 with a resolution test at f/1.4. Unfortunately, those guys don't realize that the ISO 12233 test chart is limited to 2000 LW/PH and even show crops of the chart where it is limited to 1000 LW/PH! So, all we learn is that 1000 LW/PH are resolved. Why I produced my own version of the ISO 12233 test chart to measure up to 3000 LW/PH (limited by my scanner & printer, not the chart). Note that 3000 LW/PH is the K20D sensor's resolution.
- Vignetting from the hood is normally pretty obvious. And not visible from the f/1.4 shots. So, those shots either are w/o hood or the hood doesn't cause vignetting. The angle of the 55mm is almost 43° in the corners. If the hood isn't vignetting then this would mean that it was
designed to work on FF too. But we still lack resolution figures. Untill we can give it a +++ rating we don't really know.