PDA

View Full Version : WTD: Info on Red Buhl Optical Projection lenses



Greg
3-Mar-2019, 17:40
Have two of them. 9" f/2.5 and an 8.5" f/3.4. Use them on my whole plate camera in front of a Sinar Copal shutter. Most of the time with a ND filter. Was curious if anyone knew of the lens formula for these fast projection lenses. Definitely not Petzvals for sure based on their Bokeh. Has anyone taken one apart and reversed one of their elements? Personally never had any luck with this technique, but have seen posted images that looked very interesting.