Only if you're processing them with the same software. The only three software packages that can process K10D PEF files are Pentax Photo Lab (slow as molasses no matter what you toss at it), Silkypix (reasonably speedy), and RAW Developer (Mac OS X only, pretty darn fast). PentaxLab converts PEF to DNG (glacially slowly, then at an inflated 21Mbytes apiece rather than *just* 16 or so), and then you can use Lightroom or Camera Raw, both of which outperform Pentax Lab by about two orders of magnitude on speed (on my computer, anyway).
I did a test: had Camera Raw batch process 100 K10D DNG files to full resolution PSD files. Took just a little over 4 minutes. Same test with *ist DS PEF files (about 30% smaller) took 3.5 minutes. The real difference is in the output IO ... a 10Mpixel PSD file is about 40% larger file size than a 6Mpixel PSD file. Godfrey On Dec 16, 2006, at 6:13 PM, Tim Øsleby wrote: > Since the size of an uncompressed PEF from my DS is pretty similar > to the > size of a compressed DNG from the K10D, I assume testing speed with an > uncompressed PEF from my DS could give me a pretty good idea about > what to > expect. > > Does it make sense to you now? If it doesn't I guess it is because I'm > tired. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
