static adapters

[crazymcnutjob]

I was just checking out this site: http://www.enormousapparatus.com/35adapter.htm and it seems they have an interesting setup. I know the grain problem is an issue, but how difficult is it to construct that model individually? Can you buy static adapters like that for any photographic lens?

 

[TimurCivan]

Re: static adapters

i kinda like its look.......

 

[Brett_Erskine]

Re: static adapters

Actually the fresnel is used in the 35mm adapters for the same purpose as its used in a 35mm SLR: To reduce the hot spot effect on the GG. However a simple field lens can do the same job but with even better optical quality. The fresnel were created to save weight and space for optics and thus were a good choice for small SLR viewfinders BUT you dont want to use fresnels for any imaging system that you hope to record - if you have a choice. Thats why most have done away with using a fresnel in their 35mm adapter and replaced it with one or two field lenses. (also known as a plano-convex lenses)

Good luck.

Brett Erskine