The SK Grimes lens is the one on the upper right. It doesn’t look like much, but the focal length is 760mm. On an 8×10 camera it requires almost a yard of bellows draw. I refer to it as “SK Grimes” because they built the lens, possibly out of an old Nikkor copy lens. SK Grimes is a machine shop in Woonsocket, RI. They specialize in placing old optics in new lenses (barrels). Since their logo is on it, they get the credit.

It’s a slow lens. The widest aperture is f14. It’s razor sharp, though. It’s also uncoated, which means that it needs a lens shade, and has lower contrast, which can be a plus with modern, high contrast films. It covers 8×10 with room to spare, so camera movements, such as tilt and swing, are possible.