Originally posted by crossover37 HEEGZ - Thanks. So in your opinion, what would ISO 1600 on the Kx compare to on the K7? I can buy the 50-135mm and put it on my Kx but I want a professional body. The Kx is smaller and I would like to have a body that allows me to use a battery grip (I have large hands) and more controls on the body instead of having to go through the menu system. I can only get the K7 with the 50-135mm or the K5.
The ISO on the K7 is that bad that I should keep my K7? Is the High ISO on the K7 a lot better than the K2000? I had the K2000 and definitely had to upgrade because the High ISO was horrible.
The high ISO on the K-7 will be better than on your K2000 for certain. ISO 800, 1100, 1600 and 2200 are completely usable with no complaints IMO. Going off of other people's posts, the ISO 1600 on the K-x should be comparable in noise to the ISO 800 on the K-7, though the K-7 may have better rendering of the image when noise is not considered.
If you want to get a professional body and can afford the K-5, then my advice is to get the K-5. If you really need the lens and a pro body then get the K-7 I think you will be okay with a f/2.8 lens and ISO 800 to 1600 if you have decent NR software skills. For a final thought, I recently tried my K-7 in an extremely dark arcade with a 35mm f2.4 prime lens wide open using high ISO and ambient light. Have a look here:
Incredible Pizza 2011 - a set on Flickr
This was shot in almost complete darkness at ISO 3200 on my K-7 with the only light being reflected from a nearby game. The untouched original is in the link above as well.
Originally posted by DogLover This is flat-out wrong. The only thing the Kx does better than than K7 is high-ISO.
I agree with DogLover completely, though the K-x is smaller and lighter.