Has anyone tried using lexan or plexiglass with a 600 grit sanded back to replace their damaged GG?
Thanks
Has anyone tried using lexan or plexiglass with a 600 grit sanded back to replace their damaged GG?
Thanks
I'd be concerned about lexan flexing too much under the pressure of a loupe. It would be an interesting material to use on a 4x5, or maybe a 5x7. You certainly would have to worry about breaking it! I'd try 900 grit.
"I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority"---EB White
I use a plexi GG, it works, mine is not quite as bright as a finely made glass but it does the trick. I used 600 grit on a random orbital, quick and easy.
http://www.largeformatphotography.in...ighlight=plexi
check out post #14 on this thread
I've got a home built 8x10 box camera that uses a plexi fresnel lens. I've got it lined on the camera side with waxed paper, but if I wanted to I could rough it up with fine sandpaper for the same effect.
I've made some plastic screens using various grits. The secret is the blank you use for grinding as this is the main cause of failure.imperfections.
To get the best results use a grinding blank of similar material, shape/chamfer the edges and corners before use.
Use a sperate blank for each grit size, it just helps speed things up.
My OEM Wista 54DX screen is all plastic, and there's been no issues with a loupe in 25 years, and the same goes for my plastic Beattie screen on my 10x8 camera.Originally Posted by John Kasaian
Ian
Surplus Shed has "plastic ground glass" I have put it on 8x10 5x7 and 4x5 .
"Someday" I'll get back to the 7x17 project, where I intend to use two pieces butted in the center
Ed
can't find it using "plastic ground glass" or similar--any other references you can give?
Hmmm
Sorry
Try Lenses, or filters, or heaven forfend "other"
But you will/should be rewarded by several size choices
The interweb is not always straightforward, and a lot of the stuff I find is "blunder" into
“You often feel tired, not because you've done too much, but because you've done too little of what sparks a light in you.”
― Alexander Den Heijer, Nothing You Don't Already Know
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