[ohce]

Do you put the cap on or off?

[ninjasaurusrex]

Do you put the cap on or off?

maybe i'm simple minded but you cant clean it with the cap on? do you mean the shake function? i dont think that really does anything

[rayallen]

Senor who?

[jatrax]

For the internal dust shake leave the cap or lens on. I have mine set to activate on every startup. That way I do not wait until after I have shot 300 pictures with spots to clean. Lesson learned the hard way.

If you mean actual sensor cleaning, or wet cleaning then this has to be done with the lens removed and the mirror held up. This is much more complicated and I assume you really meant the dust shake but be aware that the sensor can actually be 'cleaned' either by yourself or at the repair shop.

[ohce]

No, not dust shake. it's actual sensor cleaning. I am using K200D, there is a feature called Dust Alert. The option just above the shaking. Basically I can get a B&W image that showing the condition of the sensor. if there is a dust on the sensor, a black dot will show in the image. But before do it, I have put a lens on to take a picture.

So should I put the lens cap on or off?

[mtansley]

The lens cap should be off and your photo should be of something like a piece of plain white paper or a 'clean' white wall.

Make sure there are no marks on the paper or whatever you use to photograph in case the camera thinks thats dust & dirt.

[Belcik]

I don't remember now, but there are two things in k200d.
The dust allert, that comes in handy, when there is a lot of dust on sensor.
And sth like dust check? The dust check needs to be done the way described on the white, plain wall. With lenses on, since without lenses this option will not be available (imho).

And for the dust alert - my wife's sister that is now using my k200d had this like a month ago or so. There was a "warning" that there is a big amount of dust on sensor, so i cleaned it for her.

[altopiet]

IMO the dust alert function is not always correct. I put a lens on, f22, manual focus to infinity, shoot the sky, blue or with clouds, as long as you get a more or less even colour in the shot. On review you should easily be able to see if there is any dust. I usually check for dust every time I change my lens during the day, before actually shooting anything. That way I eliminate the problem of dust spots on my photos

[ddharriman]

Hello

No cap and point the camera to an even white (or as white as you can) surface.

Much better: ignore the function, set the camera to 22 (or more) and shoot the sky (even blue without any clouds).

Zoom the picture to 100% and check carefully if specks show...

Best regards,