I have up for sale an excellent example of the Schneider G-Claron lens of 270mm focal length. It is in a modern black Copal #1 shutter that appears flawless and seems accurate. I do not have a shutter speed tester to be 100% sure, so caveat emptor, but they are consistent and seem right during a few test firings. No "Schneideritis" is present in the lens, no scratches, swirls, or imperfections. It appears as brand new. White specks on the lens in the images are dust on the outermost surface of the glass. I do not have a retaining ring, though. nor do I have the original caps, but I have a couple snap caps I will include to keep both front and back safe during transit. Great lens for 4x5 or 8x10 camera. Apertures go from f/9-90. Asking $350 + shipping. I will ship internationally from the US. I accept Paypal or money order.