Does anyone have any info about this lens? It was a partner to an Apo=Lanthar lens, which went out with an Ilex. Is this a photo lens? A xerox copy lens? Without a shutter, just the hunk of glass maounted on the Omega View board...threaded and sunk in. I let the Apo lens go for $2500....probably too little. I do not expect this to be more than a $50 hunk of glass and board, but, maybe someone has a word for me?