Filters on a Focotar 40/2.8

[wai_leong_lee]

Am I correct to say that the Focotar 40/2.8 has a 40.5 mm front

diameter? Would I be able to screw on a 40.5 mm filter?

 

I ask because I'm thinking of using a red filter from time to time,

as a safety filter. It would also be interesting to put a soft focus

filter to get a dreamy effect with a sharp negative, although I know

the effect is different from a negative made with a soft filter in

front of the lens in camera.

[jim r]

There aren't any threads on the front of the Focotar lens. The rear is threaded for the use of extension rings. There is a screw adaptor on the inboard side of the lens holder that allows the use of a swing out filter holder that is placed in front of the lens.