|
Forum: Pentax K-1 & K-1 II
07-21-2016, 10:38 AM
|
| |
Finding the right lens is very frustrating. Most of the Pentax "digital D" lenses are designed for an aps-c sensor. That defeats the purpose of your buying a K-1 in the first place. Most of the FA lenses were designed for film cameras. I can tell you from extensive experience with Canon DSLRs that lenses designed for film use are usually disappointments when used with a digital sensor. A digital sensor is covered with little tiny "wells" that light must go down into. A digital designed lens adjusts for that and does not have near as much angle of approach of the light rays to the outer part of the sensor. Film is flat and will register light hitting it from any angle. The worst problem with film is "cosine loss" that results in gradual darkening toward the edge of the frame. That same angle causes more problems than light loss with a digital sensor.
Pentax makes one new wide angle ZOOM designed for full frame and designed for digital sensor. If you can deal with the large bulbous front element on the 15-30 lens then you are in like Flynn. If not, then you are waiting, like me, for somebody to design a full frame, wide angle, weather resistant, digitally optimized lens for a K-1. Right now I use their new and very excellent 100mm macro for everything I can. I use another camera for everything else.
|
