Fison hood on a Summar with a filter

[Brian Legge]

I have a Summar with a filter more or less permanently attached to avoid ever having to clean the front element. The filter is the same diameter as lens.

Can I mount a Fison hood on it and slide it back far enough that it won't vignette? Or does it have a rim that aligns with front of the lens (meaning it would be shifted forward to the front filter - at which point it probably would vignette).

Thanks!

[HuubL]

The fison will fit on the filter ring, but it can't slide back. Not sure how this setup will vignette. Never tried it myself.

[Brian Legge]

Thanks for the info. I'm going to give it a shot. Probably won't work but the KEH offer was cheap enough that I'm not anything trying.

[matt_mcg2]

I use a Fison [actually a British copy of one] plus filter on a Summar and have never noticed vignetting. It's possible there is some in some circumstances and I've missed it, but so far I've never had a problem I've been able to see.

The Fison has a rim, so it won't slide back.

[Simon Bruxelles]

You can't push the Fison any further back but it's worth trying it with the Summar. The degree ofvignetting may be determined by aperture and may not be too bad.

[Roger Hicks]

Originally Posted by matt_mcg2

I use a Fison [actually a British copy of one] plus filter on a Summar and have never noticed vignetting. . . .

With a filter?

Cheers,

R.