Once again, tests continue to reveal the same, they all agree with each other!
http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=34339020
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Monday, January 25, 2010
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Comments by IntenseDebate
Low Effectiveness of SR of K-7 and K-x
2010-01-25T17:27:00+08:00
RiceHigh
Issues|K-7|K-x|Shake Reduction|System Performance|
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Enche Tjin · 793 weeks ago
Have you ever measurebate it yourself? if yes, how's ur test experience compared to their test.
I am leaning to body based stabilization because it works with prime lenses and the 24-70mm
Walter · 793 weeks ago
Mr Mabo (who knows almost everything about all cameras -just ask him!) has declared that there are tests showing Pentax SR is better than in-lens. These tests are either faked, flawed, or financed by another manufacturer.
And, for the record (in case you missed the 2,000-odd posts of Roland's - his 17-70 has not had an AF failure! Only a handful of early 16-50's had SDM problems, too.
Anu · 792 weeks ago
Also test procedures are often flawed or limited - like using one target distance (different systems have different effectiveness for different target distances - all are bad or very bad at macro distances). I am not saying there are that here as I didn't bother to read the stuff :)
One thing that easily ruins the test is an impatient tester - the biggest drawback with K20D SR is the time it takes to "settle". Taking a picture before the SR symbol lits on the VF is easy to do (at least I never pay attention to the symbol unless I really concentrate my focus to it).
Here is a hint on how to improve one's SR-records - open the other eye too jut before you take the image. I think that the shaking VF image does create problems for some people.
RiceHigh 110p · 792 weeks ago
Anu · 792 weeks ago
This would also explain why K7 image quality is clearly lower than it's predecessors with basicly the same sensor. I always though that the slightly faster readout of K7 was the culprit, but maybe the company uses cheaper electronics instead.
RiceHigh 110p · 792 weeks ago
Anu · 792 weeks ago
The sensor is not really that bad. It is excellent at ISO 100 and perfectly fine upto ISO 1600. At ISO 3200 Pentax does something stupid and evil by doing noise reduction on the raw-files. I do shoot quite a bit at high ISOs, even very high, like 25k or 50k, and the big problem there is banding, especially on the top and bottom of the image area.
I of course do agree, that Canon and Sony do have superior sensors at the moment. Even so, Samsung sensor does offer much higher IQ than Panasonic 4/3-sensors, though this is probably only because of the much larger size of the imager.
Alex · 792 weeks ago
Yep, the K20D/K-7 are up-to-ISO1600 cameras. I expect at least a tweaked Samsung sensor, with lower noise in the K-7's successor; let's see how it turns out.