D7 and Olympus B-300 1,7x

What brand step-up ring are you using and how thick is it? My
Bower is 5 mm thick and it vignettes badly with the B300.
Hi Tony,

Mine is from Jessops in the UK. It's around 3.5mm thick but only vignettes slightly (just enough to annoy!!) on my D7.

Presumably thinner is better?

Regards,

Geoff
 
I read that people using Kenko's 3 mm rings have no vignetting. So yes, thinner is better. You can see my 5mm ring vegnettes more severly at http://www.pbase.com/tonywu/b300_comparison
Tony
What brand step-up ring are you using and how thick is it? My
Bower is 5 mm thick and it vignettes badly with the B300.
Hi Tony,

Mine is from Jessops in the UK. It's around 3.5mm thick but only
vignettes slightly (just enough to annoy!!) on my D7.

Presumably thinner is better?

Regards,

Geoff
 

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