I just had to do it and have my 350D modified by Eric (quick and reliable service ). As per usual the clouds arrived in force, so I had to wait a while until they pushed off just for few hours.
The moon was around 80% and illuminating everything, but I just had to give it a go. With a FL of 480mm I placed a few objects into the field of view, the Eta Carina Complex and NGC 3293 (Gem Cluster). The image could have used flats but overall for a quick go I'm quite happy with the result
Good results michael not sure i would leave the in camera noise on, you should take separate darks so you can use them on other images at the same temp range but very nice results
Yes that's what I'm planning on doing next time, leaving ICNR off and taking darks myself, I always used ICNR with the 350D and I'm keen to see how I go.
A lovely shot Michael, you'll love the modded camera.
And I agree, take darks instead of ICNR.
Thanks Andrew. I will increase the duration between subs in Images Plus camera control so I have enough time to stick the lens cap on for the darks, is this the way it's usually done?
Usually they would take darks at the end, not between each light. But you need to make sure your darks are taken at the same temperature as your lights, otherwise they just won't match up and you'll end up with black spots in your nebula.
I'd love to be able to use darks instead of ICNR but the results have always been better with ICNR, for me.
Thanks Andrew. I will increase the duration between subs in Images Plus camera control so I have enough time to stick the lens cap on for the darks, is this the way it's usually done?
Michael
Like Mike said I do them at the end or if the temp is changing I'll stop the lights and do a run of darks and then resume the lights.
I use around 15 sec rest between shots, to allow the sensor to cool a little and let everything settle, but it adds up in the end, I may cut the rest time back a little.
Also are you using Mirror Lock up?
This helps too.
Usually they would take darks at the end, not between each light. But you need to make sure your darks are taken at the same temperature as your lights, otherwise they just won't match up and you'll end up with black spots in your nebula.
I'd love to be able to use darks instead of ICNR but the results have always been better with ICNR, for me.
Ahh ok, unfortunately I may have to take them while imaging, the ambient temp usually falls steadily here in Canberra during the night. Especially during winter /freeze
Quote:
Originally Posted by RB
Like Mike said I do them at the end or if the temp is changing I'll stop the lights and do a run of darks and then resume the lights.
I use around 15 sec rest between shots, to allow the sensor to cool a little and let everything settle, but it adds up in the end, I may cut the rest time back a little.
Also are you using Mirror Lock up?
This helps too.
Yep, I'm using Mirror Lock up. I currently have the rest time between shots set in IP at 10 sec. Thanks for all the info, depending on how the temp is on the night I will take them at the end or during the run.
Nice Result Michael! Once you have a modded DSLR you never look back!
With the darks I usually do a few at the beginning of the session and a few at the end of the session. I meridian combine them when calibrating them with the lights and flats.
cheers Gary
Hi Michael great result! its nice to see first light and thanks for your kind comments also. can't wait to see more. I personally have missed imaging heaps.
leave ICNR off. take a series of different exposure dark sets ranging from different tempreture to different ISO. When you take your next iamge, record the actual tempreture reading, exposure and ISO then subtract from your records.
Nice Result Michael! Once you have a modded DSLR you never look back!
With the darks I usually do a few at the beginning of the session and a few at the end of the session. I meridian combine them when calibrating them with the lights and flats.
cheers Gary
That sounds like the go, thanks Gary.
Quote:
Originally Posted by EzyStyles
Hi Michael great result! its nice to see first light and thanks for your kind comments also. can't wait to see more. I personally have missed imaging heaps.
Eric, thank you very much for providing the modding service. I almost fell off my chair when the first sub was sent to my desktop from the imaging rig outside The difference between before and after modification is significant and well worth it, all I need now is the practice with data collection and processing.
). As per usual the clouds arrived in force, so I had to wait a while until they pushed off just for few hours. 
