Thanks for the procedure. I don't think I have a hot pixel but I almost
never shoot at long shutter speeds so I'll give it a check.
I suspect that the reason for step #3 (lay camera face down) is to
minimize any chance of a light leak. A body cap might not be light
tight. Just a guess.
Chuck Norcutt
On 2/2/2011 9:48 PM, usher99@xxxxxxx wrote:
> Developed an irritating hot pixel smack dab in center. Easy to fix in
> post and I think ACR zaps them automagically. Still irritating to view
> the red dot (multi-pixel involvement s/p demosaic. )
> David Busch tome on the 5DII says the cams have to go back to Canyon
> for remapping. ugh. Several spots including FM relate this procedure
> and the
> rumor is Canyon tries it too at first. Doesn't always work but did in
> my case---GONE.
> Advised to take a high ISO shot at 1/2 sec or so with the body cap on.
> Not sure that is necessary.
>
> The official, unofficial procedure: comments to right
>
>
> 1. Ensure fully charged battery (for manual clean)
> Why? not sticking anything towards the sensor--ignored
> that.
> 2. Turn off camera, attach body cap
> OK
> 3. Lay facing down (body cap below).
> Huh? ignored
> 4. Turn on, choose sensor cleaning - clean MANUALLY
> OK
> 5. Wait at least 30 seconds.
> Substitute say incantation, whatever is
> longer.
> 6. Turn off, turn on, choose manual cleaning again
> ignored
> 7. Wait 30 seconds.
> ignored
>
> The hot pixel present for a week is history though. :-)) Must be
> something about the manual clean procedure.
>
> Thought I'd pass it on just in case it is helpful to anyone. It was a
> new one for me. Perhaps I should clean the thing more often.
> I guess the 100 ektar equivalent is zapping dust spots from the scan.
>
> No stray red spots, Mike
>
>
>
>
>
>
>
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