I'm confused as to which model I need.
I have a Sigma 8mm fisheye and a Sigma 15mm fisheye.
I use 2 bodies: Canon 5DM2 and a Canon 40D.
On my 40D + 8mm, I shoot at 0 degrees, 6 around, then 1 zenith ~90 degrees (can be less)
On my 5DM2 + 15mm, I shoot at -10 degrees, 6 around, then 1 zenith at~90 degrees (can be less)
or on my 5DM2 + 8mm, I shoot at 0 degrees, 3 around, plus 1 zenith if necessary (to eliminate shadowing on the stitch)
I didn't see any images on how you'd shoot a zenith (at 90 degrees or anywhere 70-90 degrees)
Can someone post some? (the object VR stuff doesn't work until 64bit windows, so I can't see those images either)
The ring holds the Sigma 8mm but will it also hold a Sigma 15mm? I'm not sure if it's a different size, looks the same to me, but that's not technical
Kirk