Carl Zeiss Jena Tessar 7cm f3.5 with lens When looking through the rangefinder, focusing is done with a split image, and the distance meter is set to infinity (♾️) and is correct horizontally, but there is a slight vertical misalignment. When checking the infinity focus with a loupe from the film plane at the infinity position of the focus ring (a standard method for 4x5 film photography), the focus is slightly short of infinity. In other words, even if the focus is at infinity in the viewfinder, the focus will be slightly in front when shooting film, resulting in out-of-focus images. Upon investigation, it appears that the front lens element is extended by about 0.5mm to 1mm. However, this was checked at the maximum aperture, so if you shoot at f/32, the depth of field might bring the focus into alignment, but this needs to be confirmed by actually shooting film. The focus ring is somewhat stiff, and sometimes the front lens element needs to be rotated to focus. I applied grease, but it didn't lighten the feel. If I made it lighter, the focus would be extended further forward, increasing the out-of-focus effect in film photography. The shutter operates smoothly at all speeds. The lens has been disassembled and cleaned, so it is clean. However, when viewed with a penlight at the T position, there is no mold, dust, or debris, but there are extremely small dot-like scratches? bubbles? visible, but it appears clear overall. This is likely due to the soft glass material used at the time, and is common with old lenses. The aperture blades are rust-free and move in a perfect circle. The exterior has overall paint peeling, and has been repainted. Due to the above reasons, the price has been set low. Price negotiation is not possible, and the item is non-refundable and non-returnable (NC, NR).