Camera Talk

minoly wrote: ↑

Mon Sep 07, 2020 8:46 pm

I was really surprised to see that there are b&w filters for digital cameras, too.
Bill Delehanty

There are only two optical filters that are useful on a digital camera - a polarising filter and a clear protective filter. All of the rest can be reproduced digitally. Selling coloured filters for B&W photography on a digital camera is a con!

minoly wrote: ↑

Mon Sep 07, 2020 8:46 pm

A few days after making the post above, I searched for filters online . From the results about what's available, it seems as though there must still be a pretty good market for them. I was really surprised to see that there are b&w filters for digital cameras, too. I also found a useful cross-reference chart that gives the names for common filters from several makers. https://www.dofmaster.com/bw_filters.html

Bill Delehanty

That link is very useful! Thank you, Bill!

I would add a deep red filter as well
I tried reproducing the results of near IR in the Digicam (Wratten 89B / 720nm) and was not happy with the results compared to using the filter
Also, recently I found a light pollution filter for astro photography that works incredibly well

GrahamS wrote: ↑

Tue Sep 08, 2020 3:43 am

There are only two optical filters that are useful on a digital camera - a polarising filter and a clear protective filter. All of the rest can be reproduced digitally. Selling coloured filters for B&W photography on a digital camera is a con!

PS, Kodak Wratten filter transmittance table here:
http://lclane.net/text/wratten.html

Filterfind.net is an excellent source of filters, etc. Most are used but their condition is accurately stated. Tim the Main Man there really knows his stuff! I have a lovely Zeiss Contessa, a 1950s folder with a f2.8 Tessar. The threads on that lens are on the OUTSIDE of the lens, rather than on the inside! Tim found an Endalite Series adapter, plus yellow, red, and green filters, plus a nice little leather case for the whole ensemble.