K10D focusing quirk

2008-01-23 Thread Rick Womer
I took another careful look at "Loving Chimps", posted earlier this week, and indeed it is back-focused. Several of my shots of the stone circle show the same thing. That seemed odd. I use the autofocus, but I use it carefully. So, this evening I tested the focus on my K10D using an off-camera

Re: K10D focusing quirk

2008-01-23 Thread John Celio
> Result: The FA 50 was spot-on, the DA 50-200 was > slightly back-focused, and the DA 16-45 was > significantly back-focused (by about 20 cm at the 1.5m > distance). > > Obviously any global adjustment that fixes the 16-45 > focus will throw the other two off. > > Any similar experiences? As you

Re: K10D focusing quirk

2008-01-23 Thread William Robb
- Original Message - From: "John Celio" Subject: Re: K10D focusing quirk >> Result: The FA 50 was spot-on, the DA 50-200 was >> slightly back-focused, and the DA 16-45 was >> significantly back-focused (by about 20 cm at the 1.5m >> distance). >

Re: K10D focusing quirk

2008-01-23 Thread Rick Womer
John and Bill, I'm concerned that correcting the back-focus with the 16-45 will make the 50-200 and 50/1.7 front-focus. Is that a legitimate worry? Rick --- William Robb <[EMAIL PROTECTED]> wrote: > > - Original Message - > From: "John Celio" >

Re: K10D focusing quirk

2008-01-23 Thread William Robb
- Original Message - From: "Rick Womer" Subject: Re: K10D focusing quirk > John and Bill, > > I'm concerned that correcting the back-focus with the > 16-45 will make the 50-200 and 50/1.7 front-focus. Is > that a legitimate worry? The 16-45 has muc

Re: K10D focusing quirk

2008-01-24 Thread Gonz
I had the same problem with my *istD and the K100D with a FA24-90 lens that back focused also. Drove me crazy. My FA85f1.4 also has focus issues, but only when I manually focus. I never had a problem with film cameras in this regard, I wonder what makes digital cameras different that this comes

Re: K10D focusing quirk

2008-01-24 Thread William Robb
- Original Message - From: "Gonz" Subject: Re: K10D focusing quirk >I had the same problem with my *istD and the K100D with a FA24-90 lens > that back focused also. Drove me crazy. My FA85f1.4 also has focus > issues, but only when I manually focus. I never had a

Re: K10D focusing quirk

2008-01-24 Thread Godfrey DiGiorgi
On Jan 24, 2008, at 11:17 AM, William Robb wrote: > We want cheap cameras, we get cheap cameras. Mark! -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

Re: K10D focusing quirk

2008-01-25 Thread Paul Stenquist
at 6:52 PM, William Robb wrote: > > - Original Message - > From: "Bruce Dayton" > Subject: Re: K10D focusing quirk > > >> Hello William, >> I think there is another factor involved as well. When shooting >> film, >> the cost and time to

Re: K10D focusing quirk

2008-01-25 Thread William Robb
- Original Message - From: "Bruce Dayton" Subject: Re: K10D focusing quirk > Hello William, > I think there is another factor involved as well. When shooting film, > the cost and time to do serious testing was something to take into > account. Most of us just a

Re: K10D focusing quirk

2008-01-25 Thread Bruce Dayton
nal Message - WR> Subject: Re: K10D focusing quirk WR> It comes up in other groups as well. Plain and simple, it's a quality WR> control issue. WR> We want cheap cameras, we get cheap cameras. WR> William Robb GZ> From Gonz >>I had the same problem with my *istD a

Re: K10D focusing quirk--more testing necessary

2008-01-25 Thread Rick Womer
I've had many nice photos from the K10D/16-45 combo. So, this evening, I used Lightroom to show me all of my photos taken with the K10D at f/4. Of the several hundred such photos, there were maybe 50 or so that could be informative on focus accuracy (e.g., not scenics, and not a receding row of i