I've been mucking around with a diopter lens (nikon +2 eyepiece diopter) with some interesting results on 4x5 and 8x10.

Having just acquired a tominon 127mm lens in polaroid shutter I've been thinking about building an adapter to put the diopter lens into this shutter. I was thinking just of using it as a shutter mechanism, however as this shutter also has an aperture mechanism I've been wondering if I could use it with my hacked lens. If so; I wonder where I should place the glass element relative to the aperture? Directly in front? Directly behind? Or will this not work at all?

I could do it by trial and error, or I could read a lot of optical theory which I just don't have time to do, or I could ask here in the odd chance there's an expert who could give some insight.

FYI, the +2 diopter works as a 320mm ~f16 to f/22 lens when just mounted on a makeshift cardboard lens board.

Covers 4x5 with edge blur:
http://ashphotography.ca/zenphoto/gh...tled-1.jpg.php

and 8x10 with a lot of edge blur:
http://ashphotography.ca/zenphoto/al.../whymytree.jpg
http://ashphotography.ca/zenphoto/al...-ortholith.jpg

(Yeah, yeah, crappy waste of film shots - but it was free ortho film that came with my holders and I just wanted to quickly whip out something so I could look at an 8x10 negative