I want to mount a fresnel lens on top of the ground glass on my 8x10 Sinar Norma. Have looked through a collection of vintage Sinar Norma literature and believe Sinar never offered this option for the 8x10 Norma. Has anyone out there ever adapted a fresnel to their 8x10 Norma? Am open to suggestions on how to do this. Have considered to tap some screw threads into the sides of the back so I would be able to hold the fresnel lens with some thin L brackets but this seems to be too permanent a solution (removing the fresnel in the field would be pretty much out of the question).
Sinar did offer a fresnel lens for their later P model: part 535.58 & 535.18. But in their literature only states that these parts were "ready for fitting". They did not offer a mask & fresnel metal holder like they did for their 4x5 view. Anyone out there own an 8x10 P with the fresnel lens attached? If so how is the fresnel attached?
thanks
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