On Mon, Jul 20, 2009 at 06:01:45PM -0700, Rick Womer wrote: > > If you're shooting JPG, why bother with a grey card??? Kinda like buying a > K20 or K7 and never moving the mode dial out off the "green" zone.
I don't (deliberately) shoot JPG. > > The whole point of using a grey card is to correct colors in RAW files. One > can't correct JPGs very much, or very accurately. Exactly, whichi is why I almost always shoot RAW. > > The main difference I see is the sickly green cast in the K100 shots versus > very strange colors under various colored lights in the K20 shots. I tried to get a first approximation by using the custom white balance in the camera. Lightroom used that as the default when converting the RAW to JPEG. I wanted a quick sanity check to see if my gut feeling that the K20 wasn't performing up to snuff was accurate, so I Just tossed the really bad photos and did a quick conversion on my way out the door to work this morning. > > No meaningful comparison possible. I was afraid of that. I hope to get a chance to spend some time on them, and post the more heavily processed shots, likely in black and white. Eventually, I'll have to do some side by side tests, preferably with another K20. > > (Was that a Wheatfield-toned post, or what??) What is Wheatfieled-toned? > > Cheers, > > Rick > > > http://photo.net/photos/RickW > > > --- On Mon, 7/20/09, Larry Colen <[email protected]> wrote: > > > From: Larry Colen <[email protected]> > > Subject: K20 mojo > > To: "Pentax-Discuss Mail List" <[email protected]> > > Date: Monday, July 20, 2009, 2:17 PM > > I've had the gut feeling that the > > image quality of my K20 isn't up to > > par. As a matter of fact, in low light situations, it my > > not even be > > as good as my K100. > > > > I did an informal test, shooting with both cameras at a > > dance Friday > > night. The K20 was shot at 3200, 1600 and 800. The > > performance shots > > were taken at 1600 with a flash > > > > The K100 was shot at 800, pushing it a stop or two in post > > processing. > > > > The only processing done to the shots was throwing away the > > totally > > bad ones and "auto tone" in lightroom, with a couple of the > > "pre > > greycard" shots white balanced, most of the shots are in > > camera custom > > white balance. They were all shot raw and processed to > > 1000x800 in > > lightroom. > > > > These are the two sets. Comments on the photography are > > welcome, but > > would more reflect the lack of editing, comments on the > > apparent > > relative performance of the cameras is solicited. > > > > I used the same lenses (31, 50, 77 and maybe 40) on both > > cameras, > > mostly at f/1.8 or thereabouts. I mostly used the 50 and > > the 77. If > > you're curious, check the EXIF for details. > > > > k20 shots > > http://www.flickr.com/photos/ellarsee/sets/72157621624892293/ > > K100 shots > > http://www.flickr.com/photos/ellarsee/sets/72157621749191672/ > > > > > > -- > > The first step is learning to take great photos, > > the second step is learning to throw away ones that are > > merely good. > > Larry Colen > > [email protected] > > http://www.red4est.com/lrc > > > > > > -- > > 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. > > > > > > > -- > 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. -- The first step is learning to take great photos, the second step is learning to throw away ones that are merely good. Larry Colen [email protected] http://www.red4est.com/lrc -- 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.
