The Pentax 100mm lens is an old lens from the film era. A lot of film shooters are very happy with this lens. However, it seems to struggle in the digital world. In the digital world, a lot of people are looking at the Tamron 90mm lens as an alternative. Can the Tamron replace the old Pentax? Read it more in this Pentax 100mm vs Tamron 90mm comparison.

Lens Comparison* Tamron 90mm vs Pentax 100mmThe Pentax 100mm lens is an old lens from the film era. A lot of film shooters are very happy with this lens. However, it seems to struggle in the dig…