snodart
Veteran
Zakaree, my guess is that your hot spot is caused from the AOL case not diffusing the light well enough. When the focusing element does not diffuse the light enough, it won't matter how far you put the GG from the camera or how strong of a condenser you use... the hot spot will still be there. I say this based on my own tests with the AOL case and other transparent plastics.
With that being said, I am using the same plano-convex that is found in the various Nikon F3 series focusing screens (the D screen being one of them). The plano-convex does help, but it does very little in comparison to what changing the grain of the GG will do. The finer the GG, the less diffusion; and the rougher the GG, the more diffusion. Of course, if the GG surface is too rough, then enters the problem of grain... even with non-static adapters.
With that being said, I am using the same plano-convex that is found in the various Nikon F3 series focusing screens (the D screen being one of them). The plano-convex does help, but it does very little in comparison to what changing the grain of the GG will do. The finer the GG, the less diffusion; and the rougher the GG, the more diffusion. Of course, if the GG surface is too rough, then enters the problem of grain... even with non-static adapters.