Originally posted by kunik I have to disagree with the statement on lens speed. The DOF in your shot is huge and the closing rate on that car relative to you is not that great. Look at how far the lens has to move to go from Infinity to 5 meters on your lens (not very far). You don't need a fast lens or a fast camera to make that shot work - you just need a skilled photographer. People have always said that Pentax lenses were slow because of the example I showed with the K20 (any target approaching you at moderate speed will ALWAYS be OOF on k20 using AF.c if the DOF is narrow). I have always believed that the Pentax lenses were "fast enough" (I would not call them fast) but that the lack of predictive AF in the camera was the weak link in the system. My tests with the k-7 prove my point. The DOF in that shot is about 12 inches and it still came out razor sharp.
I agree with you there, by lense speed i was refering to the AF.C...but it does depend on your DOF as well. I use some pretty "cheap" lenses compared to most of the guys I shoot with (canon lovers), so it's nice to see it when mine comes out a little sharper than theres using a large DOF to compensate slightly. A lot depends on how you use the equipment you have. A good lense and a good body make a big difference, but it's not everything.
Originally posted by dugrant153 That's with the K100D??
That's hawt.
Yes, a K100d and my 80-320mm....not by any means a great lens, but for now it works just fine.
Thanks