Originally posted by Dreamsong * how is the autofocusing, it is meant to use the same system as the K3, in actual useage is it the same or? * how quickly can you review an image after taking a shot, on the 645D it took a few seconds. * with no in body or lense (with some exceptions) stabilisation how is hand holding to take a shot. * how big are the raw files in general. * how big are the jpeg files in general. * if you have a Pentax flucard handy how long does it take to transfer an image. * how many shots can you get out of a battery.
I can answer all but the last question:
1. Compared to the K-3 with a 18-135mm, my first impression is that AF is fairly slow overall with the DA* 55mm, especially in live view (the lens motor is to blame). The viewfinder AF locks on very decisively, even when it's dark, but LV likes to hunt (unlike on the K-3). I will investigate this in more detail as I use the camera, but I don't really see much of a difference in terms of speed between this and the 645D. I think the reason the live view AF is a bit sluggish is that the CPU can't analyze the image as quickly as on the K-3, since there's more than twice as much sensor data. The biggest improvement by far is focusing in low light.
2. It depends on your memory card and what file format you're using. For RAW+ I had to wait several seconds with a Sandisk Extreme Pro card (95Mb/s). JPEGs aren't nearly as painless, as your image can show up almost instantly. Also, the camera has a fairly large buffer, so you can still shoot away as it writes to the card.
3. With the 55mm, it's pretty easy. There's no denying that the camera is quite heavy, but you can easily get sharp hand-helds, especially now that bumping the ISO is something you can comfortably do.
4. 55-85Mb
5. 20-30Mb
6. The wireless speed of the flucard is roughly 1.5Mb/s, so you're looking at 15+ seconds per JPEG.
Adam
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