Matthew Hunt wrote: >On Tue, Nov 5, 2013 at 6:17 PM, Bill <[email protected]> wrote: > >>>> The files are pretty big. The few DNGs I've shot have ranged from 29-40 >>>> MB. I don't know why the huge bloat, the bigger files are the high ISO >>>> ones. >>> >>> higher ISO = more noise = more detail to save in the photo = bigger file. >>> >> I shoot DNGs, I guess there must be a jpeg buried in there someplace. > >DNGs are still compressed (losslessly). As Charles says, the amount of >noise affects the amount of compression achieved.
Yep. Early in-camera DNG files were uncompressed. Since the K-5 (I think) Pentax has used lossless compression DNG format, so the noise level has a significant effect on file size. -- Mark Roberts - Photography & Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
