![]() ![]() I learned a lot about this lens in the process of writing this section, and it all started when I went on the hunt for a clean copy of its operating manual. The four lenses I plan to try out are the SMC Pentax 67 Shift 75mm f4.5, the SMC Pentax 67 Soft Focus 120mm f3.5, the SMC Pentax 67 90mm f2.8, and the Asahi Pentax Takumar 6×7 600mm f4, a beast of a lens if ever there was.Įvery photographer needs at least one shift lens in their bag and this lens is loads of fun With it you can correct converging lines and create panoramic images. This means that the widest 67 lens I personally own will be cropped to just above normal focal length on the 645Z, so no wide-angle shots are possible. The normal focal length for the Pentax 645Z is 55mm. A Pentax 67 lens with a 90mm focal length is considered a “normal” lens on a Pentax 67 body. The approximate crop factor is 1.62, so a Pentax 67 55mm lens will have an effective focal length of (55mm x 1.62) = 89.1mm. This means the 67 lenses will have a longer effective focal length. The good thing about using 67 lenses on a 645Z body is the 645’s sensor will lay well within the lens’ image circle. I’m just aiming for subjectively pleasing results - within reason. I had no plans to staple a lens resolution chart to a tree in the back yard and make microscopic comparisons between lenses and cameras. The aesthetic question is a bit more complicated but one thing I was certainly not expecting was technical perfection. ![]()
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