Go Back   IceInSpace > Equipment > Astrophotography and Imaging Equipment and Discussions

Thread Tools Rate Thread
Old 01-05-2008, 04:36 PM
Alchemy (Clive)
Quietly watching

Alchemy is offline
Join Date: Jul 2007
Location: Yarra Junction
Posts: 2,949
Got condensation on/in cooled camera... heres the solution

Will lead you into the logic of this solution......

So you have condensation in or on outside between filters Yes?

Cause is temperature of surface being below dew point and causing water to condense Yes?

Problem is Water Vapour Yes?

OK remove water vapour Yes?

Trouble is its in its little box with the dehumidifier and as soon as you open the box, logic dictates water vapor will again be present particularly if you shake it etc Yes?

What you need to do is make sure no water vapour gets to it as you assemble various bits Yes?

here is solution , put active silica gel into reasonably sized ZipLoc bag with camera, filter, MPPC etc Then remove 70% of air and SEAL leave for required period of time: then DO NOT OPEN BAG but if its only 30% full of DRY AIR you can manipulate pieces together without opening the bag , THUS assembling with no moisture. TOO EASY

Attached Thumbnails
Click for full-size image (qhy8-dehumidify.jpg)
105.9 KB33 views

Last edited by Alchemy; 01-05-2008 at 08:26 PM. Reason: attatched picture.
Reply With Quote
Old 01-05-2008, 10:23 PM
Registered User

tornado33 is offline
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 3,931
A very useful idia, thanks for letting us know
Reply With Quote
Old 01-05-2008, 11:07 PM
Gama's Avatar
Registered User

Gama is offline
Join Date: Dec 2005
Location: Melbourne
Posts: 1,121
Im glad you guys get how it all works, and what steps are required to fix it easily. I have that issue with my Starlight Xpress SXV-H9 and my UVIR filter. I use a similar method, except i use a warmer room with dryer air. But your science is correct.

Reply With Quote


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +10. The time is now 03:48 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Meade Australia
NexDome Observatories
SkyWatcher Australia
Lunatico Astronomical
OzScopes Authorised Dealer
Celestron Australia
Astronomy and Electronics Centre