Plain Borosilicate Ground Glass Focusing Screens







Plain Borosilicate Ground Glass Focusing Screens
These plain borosilicate ground glass focusing screens are made from Schott Borofloat 33 borosilicate glass. Borosilicate glass is; colourless, more transparent, harder, tougher, highly scratch resistant, highly resistant to heat and chemicals. Ideal for combining with my brightness boosting Fresnels.
Available in 4×5”, 5×7”, 8×10” as well as; 2½x3½”, 3¼×4¼”, 9×12cm, 6½x8½“, UK & US Postcard, 10×12”, 11×14”, Graflex RB Super D 34/45, Graflex SG/CG 45, Linhof 45, Sinar Norma 8×10” (2.75mm thick), and more.
I can also provide custom sized plain ground glass screens.
I also offer graduated ground glass focusing screens that feature metric and imperial scales for marking of smaller formats, grids, etc. in 4×5”, 5×7” and 8×10” formats.
Sizes: The ground glass screens are true to size stated or rounded down to the next closest millimetre. For example the 4×5” screen is 101×127mm ± 0.5mm.
Packaging: Supplied in a foam lined tin. Ideal for storing a backup ground glass screen in your car or camera bag.
Lead time: Please allow 10 working days for grinding and packaging.
The glass is sourced in the UK and then hand ground by me.
Due to their size, Fresnels and ground glass screens larger than 8x10” do not come in the metal storage case pictured.
The following images show the effects of my ground glass, and Fresnels. Please note: a ground glass bought on this page will have no graduated scale. It will be totally plain.