I've got a question for the 10D owners. This may seem like a dumb question but since the 10D has a 1.6x multiplier, is there a converter that will take it to 1:1? As in, actual focal length.
There's a not-so-perfect fix though... I've heard of at least one person at the DPReview forums who's used an Olympus WCON-08 on his 17-40L to make it effectively a 22-51 without vignetting.
Personally I tried my WCON-07 on my Tamron 28-300 but didn't like the results that much... but I think the WCON-08 is better quality glass and since he put it on another L glass I guess the results should be much better than mine.
I have the sigma 15mm fish and it's fantastic. If you're wanting to really get a fisheye effect, you're obviously gonna lose a lot of the most distorted parts on the perimeter with the sensor crop. However, if you're looking for a good wide-angle solution, the 15mm is great, as, after rectilinearizing, it approximates an 18 or 19mm lens, AFTER the 1.6x crop!
Really a top-notch lens for DSLR owners. That 12-24 sounds nice, too, but it's twice the price of the 15mm fish.
15mm fisheye. That sounds so cool. Do you have any samples you can share with us?
Originally posted by welcher:
I have the sigma 15mm fish and it's fantastic. If you're wanting to really get a fisheye effect, you're obviously gonna lose a lot of the most distorted parts on the perimeter with the sensor crop. However, if you're looking for a good wide-angle solution, the 15mm is great, as, after rectilinearizing, it approximates an 18 or 19mm lens, AFTER the 1.6x crop!
Really a top-notch lens for DSLR owners. That 12-24 sounds nice, too, but it's twice the price of the 15mm fish.
Well, I've only got two online right now, and they're both challenge entries. I'll try to get some more online tonight.
The middle shot of this triptych was taken with the fish. While it looks relatively rectilinear, it was not straightened at all. The distance of the two vertical elements from the camera make them not warp as much, though some distortion is noticable.
This one (my last entry before real life took all my time away!), was also taken with the fish, and the distortion is clearly visible. I couldn't have corrected it per site rules at the time, but I kinda like the distortion anyway. I'll try and rectilinearize it to show the results.
