I’m not sure what advice you are seeking but your Leica DMR seems to have some serious dust contamination on the sensor. Time for a cleaning. Sensor dust show up more on higher f-numbers.
Jack,
What you see are dust on the sensor. any dust there WILL show up at such high f-numbers (and, BTW, so will diffraction). You probably wont notice the dust at normal apertures.
Looks like you need to clean your sensor if you want to get rid of them.
My, that’s a lot of dust. I constantly change lenses on my Nikons, so I have to blow off the sensor from time to time, but I’ve never seen anything like this. Did you leave the camera without a lens for a long time?
BTW, the aperture shouldn’t matter – the dust is on the sensor, not the lens surface?
And in case anyone wondered after that last post – yes; I do know what an f-stop is 😉
BTW, the aperture shouldn’t matter – the dust is on the sensor, not the lens surface?
Sure it matters. if light hits the sensor from all around (large lens opening) then the dirt particle is heavily out of focus. The smaller the opening gets, the more it blocks light that’s outside DOF. And that’s in front, and behind the lens.
Try the difference. Checking for dust is easy at f/22.
Rob
That’s exactly what dawned on me after about 30 seconds, Rob…it was just early in the morning…
Yes, Sir, sensor dust-free, Sir!
Maybe Rob’s newsreader didn’t catch your edit.
I never understand why anyone still uses those damn things.
(I know, I know!)
John,
Newsreader? moi???
Nah, I was off to do the shopping and and to decide what to cook (difficult).
FA,
I too usually see the light after 30 seconds. Isn’t life wonderful?
Rob
I figured Rob hadn’t seen it.
It’s easy to forget to scroll down or to the next page before replying. I’ve done it myself. But I got away with it… 🙂
<gasping for air>
hy-s-s-s-ter-r-r-icc-ah-ah-ahll! ROFL!
eh, hah, actually, I’ve just recently seen – hrmph – hah! – the film ( Der Untergang ), and that took it to a WHOLE new level…
….And seriously, there’s a point here. When I bought my F4 back in the early nineties, I saw it as an investment and the money be damned, because I knew it was a one-time expense – that camera would last me for the foreseeable future.
But now? No way I’m buying a D3x – or even a plain D3 – even if I had the money ready – when I know it’ll be outdated in two or three years, and I’ll have to do it all over again.
And one more thing: when I blow up my 10 MP raws, I see lens aberrations before I see pixels. 24 megapixels? I really don’t think the present glass is up to it.
