Originally posted by Masta' C You all have made some great points!
ScooterMaxi Jim, you make a couple interesting points. One of the big reasons I like my K-30 (and some of the other "big" models) is because of the beefy hand grip! Also, I have read several reviews indicating that the K-3 can deliver strong AF ability when there is virtually no light (ex: the photographer can barely make out the subject with his own eyes). Now, I understand that doesn't necessarily equate to focus "accuracy" or result in a useable image. However, the K-01 is practically guaranteed to be no better than my current K-30, aside from the improved shutter noise. Additionally, I'm hesitant about moving to manual focus for what I do. I used a 50-135mm DA* for a while doing portraits in manual only and had good luck, butI don't have a lot of experience with trying to manual focus quickly in low-light scenarios with fast-moving subjects. Is resorting to manual focus really the best solution in this case?
Beyond a doubt, the K-3 is going to be your best bet for AF in low light, and it will perform better than the K-30 or K-01. The K-01 and K-30 live view are the same, so if you have a relatively fast lens the AF can be quite good - and very accurate - down to a certain level, but not as low as the K-3 (based on the tests I've seen). That said, I was giving you IMHO the best possible solution for someone who needs a back up camera and very limited budget. My concern is that the K-30 hasn't proven to be a very dependable camera (the simpler K-01 is far better in this regard). If you have fast prime(s), a good loupe on the K-01 is quite easy to MF with some movement - but if its salsa dancing (etc.) it will be a lot of hit-and-miss.