383L+ Mono Shutter defect?

[JimMcKay]

Hi,

I have started to see a small shadow in the bottom of a number of my images.  I have eliminated most of the the possible causes, except for the possibility that the shutter is not quite clearing the sensor consistently.  I watched the image acquisition of a bunch of flats taken at >5 seconds each and some had this artifact and some did not.  I haven't taken the camera off the scope yet to look at it, but I will be doing so soon.  In the meanwhile, the camera has firmware 3.33 and was serviced earlier this year by ATIK for another issue.  Is the shutter a user adjustable item?  I've attached a portion of an image that shows the shadow that appears.

Thanks,

-Jim

[sferlix]

hello,

I've just posted a similar problem..
Did you find a fix ?

thanks
francesco

[NickK]

What exposure duration?

[sferlix]

In my case, the exposure duration does not matter
francesco

[Chris]

I don't think there is any alternative than to contact Atik service. I've never heard of these shutters being something that can be serviced by a user.

Chris

[scirocco1]

Contact Atik support, they helped me out with a similar issue.