Need a Neutral Density filter for Besseler 23C

[NDKodak]

Does anyone know where to find the correct size ND filter for the filter tray in a Bessler 23C enlarger? Thank you.

 

[AgX]

There are plain ND filters available as foils and as plastic plates. In both cases you can cut them to size.

 

[MattKing]

A piece of lightly fogged 4x5 film may do the trick.

 

[Huub]

Or use a ND filter that screws into the lens... 40.5 mm is what i need for my Rodagons and Nikons.

 

[Doremus Scudder]

IIRC, the filter tray on the 23C is between negative and lens, in which case you will want an optically-planar Wratten gel filter or the like. These you cut to size. Be sure to keep them clean! Filters in the filter tray get dusty pretty fast. As an alternative, I would likely use a filter over the lens as mentioned above.

The best solution, however, may be to attenuate the light source somehow. A different bulb or some kind of ND sheet or diffuser between bulb and negative. Or, just stop down more...

Doremus

 

[darkroommike]

IIRC, the filter tray on the 23C is between negative and lens, in which case you will want an optically-planar Wratten gel filter or the like. These you cut to size. Be sure to keep them clean! Filters in the filter tray get dusty pretty fast. As an alternative, I would likely use a filter over the lens as mentioned above.

The best solution, however, may be to attenuate the light source somehow. A different bulb or some kind of ND sheet or diffuser between bulb and negative. Or, just stop down more...

Doremus

All but the earliest 23 series enlargers have a filter holder above the carrier as well as the little sliding holder just above the lens. A Rosco ND filter can be used in the filter drawer. How about this 2 stop one from Adorama:
Rosco Cinegel N.6, 20x24" 0.6 Two Stop Neutral Density Lighting Filter

 

[tedr1]

Use the filter drawer above the lens, no need for optical perfection at this location. Purchase sheet film material and cut it to size using scissors. These people will send you a sample sheet big enough for your purpose http://neutraldensityglassfilms.com/buy-now/