07-27-2010, 09:02 PM
I don't know whether you were referring to my post on changing lenses in a bag in dusty conditions, but if so, this is actually a practice used a lot even by professional photographers when shooting, e.g., in a desert or in safari type conditions, where dust is really a problem.
This not only because of dust on the sensor, but also anywhere on moving parts and on electronics. Dust has an impact on AF, f.e., on the shutter mechanism, on the aperture mechanism of lenses if the lenses aren't entirely dustproof, etc., and most of this dust generally enters lenses from the camera or lens mount.
I have read a few horror stories on photographers working in the desert with neither a camera or nor lens left to shoot with after a couple of days of dusty consitions, basically because their gear wouldn't even work anymore because of this dust.
So far this side of the dust issue.
The other side is dust spoiling images. I find it quite interesting, provided you use a 5D classic, that you haven't had any problems with dust on that large, non-dustprotected sensor of that camera. I found I had to clean it every 1000 shots or less, because it became too much work to get rid of dust spots in landscapes or macro photographs, especially in middle light to light areas. That is the only aspect of the 5D classic I really hated.
The 5D Mark II is a different story alltogether: the dust shaker seems very effecive. So far, and I have that camera for well over a year now, I have never had to remove any dust. The same is true for the 1D Mark III, but then, I only have that for a couple of months.
BTW , I do believe you have to use your camera, otherwise why even bother having one (or more as may be the case), and your lenses. This weekend I went out for a few hours, shot about 120 images, and changed on average my lenses every two to three shots <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />. Ok, I do shoot primes with the exception of 1 zoom, but even so, they do all get a workout. This particular instance was a little extreme, but generally I rarely shoot more than 10 exposures with the same lens before a lens change, unless I am doing macrophotography or studio work.
Kind regards, Wim
This not only because of dust on the sensor, but also anywhere on moving parts and on electronics. Dust has an impact on AF, f.e., on the shutter mechanism, on the aperture mechanism of lenses if the lenses aren't entirely dustproof, etc., and most of this dust generally enters lenses from the camera or lens mount.
I have read a few horror stories on photographers working in the desert with neither a camera or nor lens left to shoot with after a couple of days of dusty consitions, basically because their gear wouldn't even work anymore because of this dust.
So far this side of the dust issue.
The other side is dust spoiling images. I find it quite interesting, provided you use a 5D classic, that you haven't had any problems with dust on that large, non-dustprotected sensor of that camera. I found I had to clean it every 1000 shots or less, because it became too much work to get rid of dust spots in landscapes or macro photographs, especially in middle light to light areas. That is the only aspect of the 5D classic I really hated.
The 5D Mark II is a different story alltogether: the dust shaker seems very effecive. So far, and I have that camera for well over a year now, I have never had to remove any dust. The same is true for the 1D Mark III, but then, I only have that for a couple of months.
BTW , I do believe you have to use your camera, otherwise why even bother having one (or more as may be the case), and your lenses. This weekend I went out for a few hours, shot about 120 images, and changed on average my lenses every two to three shots <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />. Ok, I do shoot primes with the exception of 1 zoom, but even so, they do all get a workout. This particular instance was a little extreme, but generally I rarely shoot more than 10 exposures with the same lens before a lens change, unless I am doing macrophotography or studio work.Kind regards, Wim
Gear: Canon EOS R with 3 primes and 2 zooms, 4 EF-R adapters, Canon EOS 5 (analog), 9 Canon EF primes, a lone Canon EF zoom, 2 extenders, 2 converters, tubes; Olympus OM-D 1 Mk II & Pen F with 12 primes, 6 zooms, and 3 Metabones EF-MFT adapters ....