Graflex.org

[Nadoske]

Hello.

I want to buy filter for lens and wondering about filter size. Is it 37mm?

Thank you

[45PSS]

105mm f3.6 uses Series 6 filters with a Series 6 holder that just slips on over the outside edge of the front element. The internal threads of the front element are not for filters.
Site search series 6 or series six and select all the terms to bring up all the threads about the filters and holders.
_________________
The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.

[Nadoske]

[45PSS]

Measure the Outside Diameter of the front lens barrel then look for a series 6 holder of that size. The Series 6 adapters were available for lens diameters from 1 1/4 to 1 21/32. Use series V for smaller lens, series VII for larger.
https://graflex.org/helpboard/viewtopic.php?t=3324

The actual filter diameter is posted in this thread https://graflex.org/helpboard/viewtopic.php?t=2052

In a filter thread someone posted that a series VI retainer thread is 43mm.

The Ektar 105mm f3.7 takes a 38mm series VI slip on adapter, a very common size that may be hard to find.
http://www.bnphoto.org/bnphoto/KodakEktarsDB4.htm
_________________
The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.

[Henry]

Series VI retainer thread is 44 mm.

[Nadoske]

Thank you alla very much