Re: 4x5 Fisheye - was Simonturnpike ford

[Steve Morton <Steven.Morton@xxxxxxxxxxxxxxxxx>]

Hi All,

Glenn Barry wrote:
> I have modified an Arsat 30mm fisheye to shoot full frame on 5x4, it 
> works wonderfully, I had steve grimes fabricate an adaptor that replaces 
> the real lens coupling so that it screws straight into a Copal #3 
> shutter. Once I verified everything I cut off the built in lens hood 
> and placed the bits in the lens cap so that I could still use it.

I have done a very similar thing. I have mounted my 30mm Arsat in a 
Copal #3 and mounted this on my Slivestri S4 4x5. The good thing 
about the Arsat is that its angle of view is close to 186 degrees.  
However the bad thing is that it does suffer a bit from flare when 
bright lights are in its field of view. I sent my Arsat back to the 
Ukraine to have its glass surfaces multi-coated. This has improved 
the image quality and reduced the flare a little but the flair can 
still be a bit of a problem.

I may look around for a Mamiya RB 37mm to try next as Willem has 
done.

> BTW if you can get a hold of a poor condition RB body you can remove the 
> front  panel and adapt it so that you can use RB lenses on 5x4, with or 
> without a 120 back.

You can buy the RB/RZ mounting ring from an extension tube as a spare 
part. As I recall it is hard to get the mount from the front of an 
old body and effectively use that.

Cya
Steve