Hello, I recently acquired a nice Pentax K5ii to use as a backup to my KP. Came with it was a Sigma 75-300mm f4.5-5.6 Macro, the lens looks pretty old, because I couldn't find any information about it, all Sigma versions currently are 70-300, 70-300 DG, APO, etc. I thought it could be this one
Sigma MF 75-300mm F4-5.6 Lens Reviews - Sigma Lenses - Pentax Lens Review Database but the looks is different, and my lens is AF, although it has the same push & pull zooming mechanism. Physically the lens is in good state, functioning very well.
Do you know this lens? Is it a good performer that worth keeping? In terms of telephoto lenses I only have the 55-300 PLM that belongs to the 200-300mm territory. It's very sharp, compact and light, but a bit slow. What I like about this Sigma lens is the metal build quality, and it stays at f4.5 until 200mm, quite nice. But at the same time I do not use telephoto lenses very much, and when I do, the 55-300 is very convenient thanks to its range, compactness, sharpness and fast focus.
If I sell this Sigma, how much do you think I could get for it?
Last edited by Bui; 05-01-2020 at 06:16 AM.