Kinoptik 100mm f/2 apo lens, with original macro tube, T-mount, you may use any DSLR camera on it with a $10 T-mount adapter. I put on a Leica S T-mount adapter can use on Leica S, infinity will little over so it will be fine to do infinity, lens cover full 44x33. (can cover 6x6)。 Macro tube may let you do 1:1 macro directly. Glass looks clean and clear, no scratch or fungus. come with original front cap no rear cap.