Pentax SMC D FA 100mm / F2.8 WR lens (Macro Tele, waterproof, 49mm filter thread) for Pentax (Electronics)
I have the lens over a year and am fully satisfied. The optical quality is, as well as the competitors (Sigma 105, Tamron 90) very well. Like any other macro also, it is grayed out specifically geared to get a decent sharpness growth, which is also s