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fishdoc

Member Since 03 Sep 2004
Offline Last Active Jun 05 2011 07:40 PM
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Posts I've Made

In Topic: 5503 Ike dome-shade cut away

22 May 2011 - 06:54 PM

OK. I may have found the answer on another thread where a writer states: "180 degrees on a Nikon and 167 degrees on a Canon at 10mm" (for a fisheye). Could be that the different crop factor of the Canon sensor narrows the view enough that the shade is not a problem.

Any other canon shooters have experience with this set up?

In Topic: 5503 Ike dome-shade cut away

22 May 2011 - 06:33 PM

I am shooting the 10-17 in the 5503 port on a canon 40D. I have tested this extensively and I am NOT seeing any cut-off with the standard dome shade. I even attached some clips to the edges of the shade so I could see where any vignetting was starting. Looks like there is still a few mm to spare before any shade would appear on the sides (of course much more margin at the top/bottom). I tested a variety of focal distances and f stops at 10, 17 and a few intermediate focal lenghts.

Any ideas why the standard dome port shade is not showing any vignetting in this configuration?

Thanks