On 27/7/08, MikeM, discombobulated, unleashed: >The sensor of my K10 has a smudge on it after 4000 shots that don't >have it. I have changed lenses several times but I haven't even >looked at the sensor. How could this happen? I understand how dust >can get on the sensor but I can't imagine how a smudge could get on >it without touching it.
Interesting. Can you post the pic with the smudge? I cleaned two cameras yesterday in readiness for vacation time next week. Both had dirty sensors (non self-cleaning types) so I used sensor swabs to clean them. The Epson R-D1 cleaned up first go but the 1DmII took three separate goes. Inbetween each clean, I'd put a lens on, pop outside, aim at clean sky, nab a frame at minimum aperture (f32 in this case) and load it up for viewing on the Mac at 100%. When dirty, no amount of peering in with the naked eye and a flashlight will reveal the actual offending particles, simply too small to see. But they were there! After cleaning, I blow all the rear elements / mechanicals of all the lenses (and their respective rear caps), surprising how much sticks to those babies. What might appear as a smudge, may be in fact a piece of lint or dust, some of it 'sharp' and maybe some of it not (eg some not on the sensor). HTH -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=====| http://www.cottysnaps.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.
