Regeneration of desiccant - how to open the container ..

Hello,

Hope you are all doing well. Thank you so much for your help.
I have been taking bias and darks for calibration using the maxim dl with the Aluma 8300 for a few weeks.
I just got around to start taking flats (have not calibrated the exposure yet), please see attached .fit file.

At -20˚C I Observe that there are some artifacts, perhaps some frost formation. Later I verified that at zero-degrees I do not see the same. I have opened the Aluma only once to attach the fw8g-aluma and not since. With the attached fit file can you please confirm if it is frost ?

If so, according to the "C-2 Regenerating the desiccant", of the manual it suggests I need to regenerate it. I am unable to "open" the container from the camera body. Turning 90 degrees is not helpful. Is force needed to pull it out of the camera body?

Perhaps I am doing something wrong, kindly assist.

with regards,
-Kalpesh

 

Hello Doug,

Thank you for your quick reply.

Yes some slight additional force was required to pull it out, thanks.

But I am surprised, I see only the container and no O-ring, perhaps that explains the frost.
I did have it facing downwards as suggested in the document while taking the container out.

Can you please send me the specification of the O-ring, something I can pickup from a local hardware store?

with regards,
-Kalpesh

 

Hello Doug,

Thanks again for a prompt reply.

My bad. You are right. I was incorrectly expecting in the outer cavity, see attached.

Let me remove the o-ring and go ahead with regeneration of the desiccant, will update here in case I have problems with the frost again.
While the container is removed I have kept the camera in a closed container with a few large camera-use-desiccant packs, hopefully that will help too.

with regards,
-Kalpesh