Originally posted by Laurentiu Cristofor Gentlemen, why are you even providing these sample images when you know from the start that you've handicapped yourself?
- one is taken with a consumer zoom
- one is taken through a double pane window
- both are taken at ridiculously high ISO values
If you are trying to beat samples taken from a camera at ISO 1600-2500 with a high resolution prime lens, don't handicap yourselves by using consumer optics and going over the board with the ISO setting. And don't post just 800px images to match a 1300px sample. The bird shot lacks tonality in the wings and the raccoon shot is already very noisy when I check the largest size. None of them impresses me to want to buy the K-5. I have seen plenty of shots here on PF about how much better the K-5 is than the previous cameras at high ISO. I truly believe it is. But it is not that good that you can beat images taken at ISO 1600 when using it above ISO 10,000!
The K-5 high ISO score is 1162. That means that once you push over that ISO level, you are dropping below the IQ bar set by dxomark at 30db noise, 9EV DR, 18bit color depth.
Here's a link to the large 1300px XPro1 image that first caught my eye. It is taken at f/3.6, ISO 2500, with the 35mm lens. What I like about it is the way the crane pops out from the background as well as all the details captured in the shadows on the pavement or on the building. Maybe the K-5 can take a similar shot at ISO 2500 when paired with the FA 31, but you're not going to beat that image with ISO 10,000 or 25,600 from the K-5 paired with any lens.
At ISO 10,000 the K-5 is no better than my K-7 at 3200 except in DR, where it corresponds to the K-7 at 1600. At 25,600, it equals my K-7 at 6400 - 3200 in terms of DR.
See for yourself. I don't use my K-7 at those levels, although I could definitely get some interesting 800px images from it. Why do you even think that the K-5 can produce competitive shots at such high ISO?
You are totally missing the point......Let me get out my Crayons and explain it to you.
You are E-mailing friends or family and telling them of the little Raccoons that come to your home every night to rob Otis' Squirrel feeder of leftover sunflower seeds. They say they would sure like to have a photo of one. So you need a little speed, a minimum of around 1/70 or so at 100mm because Raccoons are not trained Squirrels and won't "freeze on command".
You need a fast lens, and a camera that can choose the ISO for you since you won't get a chance for a lot of "test shots"....Raccoons are not the kind to linger for your benefit.
So you mount the DA*50-135 on the K5 and switch to Tav mode and through a dirty double pane window, you snap. (Tav is fantastic BTW!
)
Wow! You have something to send them, and low and behold, you are pretty sure they will recognize it as a real life Raccoon! Now if old Granny just happens to have CS5 on her computer and goes in there to pixel peep, you may have a problem, but if not, she will probably love what you sent her....or more accurately, what I sent her, because if you don't have the K5 you most likely got nothing but a fuzzy dark screen to send old Granny.
Now I am not the best with Crayons, and may have got out of the lines a little, but I'm pretty sure you can get the picture?
Best Regards!