I want to buy a new ground glass to replace the one that is in my Chamonix F1, but I want to know if anyone knows if I replace the 3 pieces of ground glass that are already in my F1 will that affect focusing? I want to put in a Steve Hopf Borosilicate GG or one of those new bohemastudio acrylic GG.
There is only one piece of ground glass in the Chamonix. Closest to lens seated in a cutout is a fresnel lens, then the GG in the middle, with a protection clear plate behind that closest to your face. You only need the middle ground glass. You can remove the fresnel and clear plate without effecting the focus point.
Cheers Shane
Thank you!!!
The Chamonix GG is so bright and clear, what don't you like about it?
The Glass protective sheet on the outside is irrelevant. So you have a fresnel on the inside of the GG. If you remove the inside fresnel, thereby moving the middle ground glass that much forward, would that not affect focus? Wouldn't you need to add a spacer to maintain the original position of the GG?
Thanks,
Kirk
at age 73:
"The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep"
Originally Posted by StoneNYC
It's not that I don't like it I just find the weird rings it produces from the GG touching each other annoying. Sorry I forgot what the correct term for the rings are...
That's he fresnel. You can remove that, this the piece in between the GG and the outer protective glass.
Try just removing the fresnel in between, then replace the protective glass on top of the ground glass and you should be fine.
So wait the fresnel isn't the one closest to the lens? I'm confused now
It shouldn't be no, the older N-1's had them reversed and that caused focus problems and they fixed it.
I don't own an N-1, N-2, or F-1 but my 8x10 to 4x5 reducing back has the GG - fresnel - protective glass, in that order.
Oh ok gotchya. Thanks!
Is there any way to keep the GG/Fresnel/Protective glass combo without getting those weird rings that show up?
Posting Permissions
Reply With Quote
Bookmarks