[nwbcc] dust

[Tony Cropper]

Hi Sylvia,


In article <6.2.0.14.1.20070105224018.026b9018 at pop.freeserve.net>,
   sylvia kelly <ma-kelly at hillburn.fsnet.co.uk> wrote:
> How can I tell when there is dust on the sensor?  


The advised method is to take a pic of an even, blank surface, a
ceiling, clouds, something like that with the lens stopped down as far
as it will go. Do defocus on the even surface too.

A look at such an image should show anything on the sensor as dark
blobs.

Hope this helps.

Regards

tony

-- 
tony cropper
Email: tony at acropper.com                                       bristol uk
Web:   http://www.acropper.com/