On Apr 21, 2014, at 19:18 , Larry Colen <[email protected]> wrote: > I’ve been having issues on my K-5 II with a bunch of sensor dust that doesn’t > show up on the dust check, but which shows up in the sky whenever I use a > moderately high f/stop. > > Unfortunately my $40 lollipop sensor cleaner has disappeared. > Since the dust wasn’t showing up on dust alert, I stopped my 18-250 all of > the way down, aimed it at empty sky then cranked contrast, clarity etc up in > lightroom to show the dust: > https://www.flickr.com/photos/ellarsee/sets/72157644202562425/ > > Has anyone else run across problems like this on the K-5 II? I bought it > toward the end of the production run last august, so it should be way past > the early K-5 sensor stain issues. > > I don’t normally shoot at f/45 but I’ve seen it even at only moderately high > f/stops, like f/16 with my 8mm. >
That big blob on the right-hand side is impressively large. That's either quite far from the sensor, or it's a HUGE something-or-other on the sensor. It doesn't have the sharp, crisp delineation that you normally get from the dust that shows up from shooting at a tiny f-stop. Does it show the same size/location at all zoom ranges? I've never seen dust on a LENS cause anything like this, but it doesn't look like something that's on the sensor, either. Also: I'm noticing that your last 11 photos also have a chunk of black in the upper-right-hand corner of the image which isn't dust - something is flat-out BLOCKING light to the sensor up there. What's up with that? -Charles -- Charles Robinson - [email protected] Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- 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.
