Originally posted by zxaar how do you know the next sensor from k7 will be better. Think about it you could have made the same statement about k20d that the next would be better. But the next from k20d was k7 and sensor wise it was not better, at least from low light point of view.
I know it will be better because the technology is still advancing. There have been reports of a new and better Samsung sensor in the works. Sony is always working on something new. Foveon sensors are said to do some things bettter than any other. What's unknown is whether Pentax will stay with Samsung, go with Sony, or do something totally different (unlikely).
Originally posted by zxaar But interesting thing is A700 still ranks higher in sensor marking than k20d. So their worse was on par with what samsung has to offer.
According to DPR, the K20D has lower noise than a Nikon D300, which uses the same sensor as the Sony. Some of the (early?) K20D sensors were not up to scratch. If you read threads on K20D noise, a few people have serious banding at high ISO, while most don't. I suspect the DXOMark K20D was sub-par and that's why it didn't achieve the same mark as the GX20. I can't think of any other explanation, unless the explanation is that DXO measurements are flawed, which is what some people believe.
Originally posted by zxaar All in all they do have indicated progress and today when we talk sony do have superior low light sensors. Easily better than anything samsung has to offer.
For someone who shoots video, the K-7 sensor is better than the K20D sensor. IME, the K20D renders colours better and has a more 3-D look than the K-x, which makes it a better landscape shooter. Some portrait specialists rave about the K20D skin tones. The K-x is a stop better for low light. Clearly the K-7 is a better
camera than the K20D and the K20D is a better
camera than a K-x. I carry the K20, K-x, or both, depending on what I need for the day. It's nice to have variety.
Originally posted by zxaar What makes you so sure that sony will be sleeping while this time. They already have lead, it might happen that gape is widen further. May be sony's new sensor might just be too good. Who knows.
I'm glad that Sony entered the DSLR market. Their aggressive marketing and technological resources are helping to push the envelope. But these big companies don't own the market on innovation. The next revolutionary advance could come from left field.