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07-30-2009, 12:52 PM   #1
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K20D Dust Alert command not available

The Dust Alert command in K20D Setup Menu is unavailable for me to select. The command is there in the menu but it's gray and I can't select it. My K20D is running v1.03--I think. I can't remember how to display the version.

Why has this happened and how can I get the Dust Alert back?

Thank you.

William

07-30-2009, 12:54 PM   #2
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Looks on your SD card. It will have a saved picture file from the last time you ran the Dust Alert. Delete it.

Dan
07-30-2009, 01:39 PM   #3
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I wasn't aware of that, but I do know that Dust alert won't run if you've got a manual lens mounted.

Last edited by Marc Sabatella; 07-30-2009 at 05:01 PM.
07-30-2009, 01:44 PM   #4
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wtf is dust alert?

07-30-2009, 03:00 PM   #5
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This is right. You'll get a dust alert option grayed out with a manual focus lens mounted. If you put on an af lens, it's in function again.

To check the firmware version push the menu button while you turn on a camera.
07-30-2009, 04:19 PM   #6
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To add to the above, the camera must also be set to autofocus. The dust alert setting is greyed out on manual focus or using a manual lens.
07-30-2009, 05:04 PM   #7
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QuoteOriginally posted by Gooshin Quote
wtf is dust alert?
Hmm, I didn't realize Google was down :-)

Oh, very well, it's a mode in some cameras where it will show you on the rear LCD where any sensor dust is. Much like shooting the sky at f/22, but it processes the image to overlay a picture of the sensor and generally make it more clear how to find the dust speck.
07-30-2009, 05:26 PM   #8
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QuoteOriginally posted by Marc Sabatella Quote
Hmm, I didn't realize Google was down :-)

Oh, very well, it's a mode in some cameras where it will show you on the rear LCD where any sensor dust is. Much like shooting the sky at f/22, but it processes the image to overlay a picture of the sensor and generally make it more clear how to find the dust speck.
come on dude, sarcasm!

i dont use the feature, because it picks up dust that doesnt even show up in the image. I dont even bother with the start up dust removal.

like you said, a sky shot at f22 is enough, then if i see anything i just wipe the sensor.

07-30-2009, 06:20 PM   #9
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QuoteOriginally posted by Gooshin Quote
i dont use the feature, because it picks up dust that doesnt even show up in the image. I dont even bother with the start up dust removal.
It does not appear when you're shooting with wide open lens. Believe it or not, but some people are shooting landscapes at f/8 or f/11, and some even do macro shooting at f/22 and smaller
07-31-2009, 06:50 AM   #10
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Thanks for all the responses--you guys are great.

I had deleted the file from the SD card. The first time I ran Dust Alert I was using an auto-focus lens. When I tried it yesterday I had my A-series normal lens mounted. I'll check the menu again with the auto-focus lens this evening.

Thanks, too, for the guidance on checking the version.

William
07-31-2009, 08:08 AM   #11
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QuoteOriginally posted by Gooshin Quote
come on dude, sarcasm!

i dont use the feature, because it picks up dust that doesnt even show up in the image. I dont even bother with the start up dust removal.

like you said, a sky shot at f22 is enough, then if i see anything i just wipe the sensor.
You don"t get dust in Toronto...it"s still frozen from last winter ......
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