I have two. One Beseler 23cII-xl with a dual dichro head and the light intensifier for 35mm. I also have a Bogen 22A that I mainly use for the copy stand part. The interesting thing is the Bogen creates sharper prints than the Beseler. I even aligned the Beseler, but could never get the tact sharp prints I got with the Bogen. However, the 23cII-XL is what I used for everything regardless.