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Photo Forum / Digital Photography / DSLR Cameras / January 2007Pentax K100D better than istD?
I hear the sensor of the K100D and similar new Pentax digital SLRs puts out sharper .JPGs than the istD did. I have an istD and found that this was one my most important issues with it. Can anyone verify that the K100D performs better in this respect? >I hear the sensor of the K100D and similar new Pentax digital SLRs > puts out sharper .JPGs than the istD did. I have an istD and found > that this was one my most important issues with it. Can anyone verify > that the K100D performs better in this respect? It's the same sensor, as far as I know, but the claim is that the firmware does apply more sharpening. Also, the SR would have the effect of actually making a good number of shots sharper than they would have been on the D. So all in all you'd probably perceive there to be an improvement in this regard. On the other hand, if you still have your D, it could be a better investment to spend a little money on a program that can painlessly batch sharpen your JPEG's. Might even be freeware that could do this well enough. --------------- Marc Sabatella marc@outsideshore.com Music, art, & educational materials Featuring "A Jazz Improvisation Primer" http://www.outsideshore.com/ > > I hear the sensor of the K100D and similar new Pentax digital SLRs puts > > out sharper .JPGs than the istD did. I have an istD and found that this [quoted text clipped - 9 lines] > can painlessly batch sharpen your JPEG's. Might even be freeware that > could do this well enough. Another option: Shoot RAW and batch convert to JPEG. Then if the firmware is applying sharpening automatically, is it possible .JPGs coming out of a K100D are noisier as a result? For instance at ISO 1600 or 3200 it might be very noticeable. > >I hear the sensor of the K100D and similar new Pentax digital SLRs > > puts out sharper .JPGs than the istD did. I have an istD and found [quoted text clipped - 10 lines] > Marc Sabatella > m...@outsideshore.com > Then if the firmware is applying sharpening automatically, is it > possible .JPGs coming out of a K100D are noisier as a result? *All* firmware applies sharpening when creating a JPG - it's practically a necessary part of the conversion. The only question is what kind of algorithm is used, and what parameters are supplied. And it is true that more sharpening might result in noise being more prominent as well (if not literally more of it), all else being equal - that is, if you took the exact same algorithms and simply cranked up the amount of sharpening. But if one algorithm has an inherently better sharpening algorithm than another, it seems entirely possible that it might have better noise handling algorithms too. Which is to say, I don't really know for sure, but in general, the K100D is not generally perceived to be an especially noisy camera for its sensor. --------------- Marc Sabatella marc@outsideshore.com Music, art, & educational materials Featuring "A Jazz Improvisation Primer" http://www.outsideshore.com/ |
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