I noticed that the fresnel on my Horseman 6x9 Ground Glass back is behind the ground glass, while the fresnel on my Horseman 4x5 FA is in front of the GG (between the lens and the ground glass).
On the Horseman 4x5 FA the fresnel is smaller and 'set in' so that there is a ledge for the ground glass to rest on the aluminum back. I would think there might be some focus shift with the fresnel between the lens and the ground glass, but on 35mm SLRs the fresnel is also between the lens and the frosted plastic, (or molded on the underside of the frosted plastic).
So my curiosity is: what is the arrangement on other view cameras besides the Horseman. Do most have the fresnel in front or behind the ground glass?
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