Problem OIII subs from Running Rivers, a big Sadr

[Fay]

well there was no sign of anything untoward on the chip or filters, so will abandon the plan to put the desiccant in the oven, for now

[mickw]

Because you can't see any moisture in the warm and daylight does not mean it isn't there.  Connect up the camera with the lens and filters then turn on the camera cooling and run it through a sequence for about 1/2 hour or so, then shut it down and take the lens off before it all warms up again.  If there is any moisture inside, it should have condensed on the filter or lens - I do mean to do this in daylight

[Fay]

i did that this morning, but am going to dry it out tonight

[Fay]

i am outside and it is extremely damp. i have already got that big damp circle inn the middle of the ccs. drying the sessicant has not worked. any ideas anyone

[MarkS]

i am outside and it is extremely damp. i have already got that big damp circle inn the middle of the ccs. drying the sessicant has not worked. any ideas anyone

ccs?
Would a hair dryer work?

[Fay]

i took the front off the camera and could see no sign of damp. put it together and started imaging again and it is ok now.

dont know what to say. it is not a scope problem.

if it happens again, i will do a test thru every filter and the blank space

[Carole]

Is this the replacement filter Fay?
I think you said you were exchanging it with the supplier.

Carole

[Fay]

No that was the OIII filter, was using HA.

. it was ok when i got going again, cant make out what it it was, but extra dampness seems to start it off.

[Mike]

Sounds like you've got a tiny amount of moisture trapped inside somewhere. Leave it inside a bag with desiccant inside your airing cupboard for a day or two.

[Fay]

i will do that Mike

[mickw]

Do you assemble the camera, filters and filter wheel at each session or just leave it set up ?

Do you assemble it indoors or outside ?

[Fay]

assembled each time. assembled outdoors in the day

[mickw]

assembled each time. assembled outdoors in the day

Any moisture in the air is likely to get on the filters and in the camera 

Couldn't you just set it up indoors in the warm and dry then leave it set up ?

I think you use astro art for capture, doesn't that remember filter positions or do you not have enough space for a full set and "none" ?

What do others do

[Fay]

i never leave my camera hanging around setup. it all goes back in its box.  yes aa know ws where the filters are and you need 8 positions to put all the filters in.

it was ok last night. not sure what causes it