Greetings All,

I'm trying to figure out what to do about a hood and filters for my 4x5 Calumet CC-401 kit. I've spent some time on this forum and other sites learning about various Series filters, but I'm not really finding a solution. I'm looking to use red, yellow, and maybe other filters for black & white.

I have three lenses. One is easy; it takes 58mm screw-in filters. The other two aren't threaded for filters.
  • One is a 90mm f/6.8 Wollensak Raptar; its lens barrel has a 32mm outside diameter.


  • The third one is a pre-1914 Voltas 8x10; its lens barrel has a 56mm outside diameter. If I take the front element off and use it for one of the convertible focal lengths, I'm really at a loss for a filter solution.


Twenty years ago, I had a neat solution. A company named SKB in Great Britain made a bellows lens hood that mounted to a ring that had three nylon screws that gripped the lens barrel. I sure wish I still had that.

Any suggestions to this once-again noob would be appreciated.

Best,
Jim W
jimwlouavl.com
IG: @jimw_lou_avl