Search found 30 matches

by nexusjeep
Fri Jan 11, 2019 11:01 pm
Forum: How do I?
Topic: Brain Function and Narrow Band
Replies: 25
Views: 238

Re: Brain Function and Narrow Band

ooh the memories of Airplane / Police Squad and the Naked Gun :D

Showing my age now.
by nexusjeep
Fri Jan 11, 2019 10:33 pm
Forum: How do I?
Topic: Brain Function and Narrow Band
Replies: 25
Views: 238

Re: Brain Function and Narrow Band

Hi Dave, Mine is running F4.5 as I currently have the 0.75x reducer / flattener in as opposed to the straight 1.0x flattener when I am using it at the native F6 still not F2.8 though. It is a nice bit of kit if we ever get the skies to give it a major work out we were originally going to go for some...
by nexusjeep
Fri Jan 11, 2019 7:46 pm
Forum: General Discussions
Topic: Dark and Flat subtraction
Replies: 2
Views: 71

Re: Dark and Flat subtraction

Thanks Robin,
For that clarification that is exactly what I want it to do will build some darks and flats next time to test it out

Cheers
Nick
by nexusjeep
Fri Jan 11, 2019 12:26 pm
Forum: How do I?
Topic: Brain Function and Narrow Band
Replies: 25
Views: 238

Re: Brain Function and Narrow Band

Don't get me wrong I am not knocking CCD but only have experience of CMOS cameras previously owned a 183C then moved to the ASI1600MM Pro and really like the ability to build a dark library as it means I can have a shorter evening. With everything integration time is going to be king so regardless o...
by nexusjeep
Fri Jan 11, 2019 11:59 am
Forum: How do I?
Topic: Brain Function and Narrow Band
Replies: 25
Views: 238

Re: Brain Function and Narrow Band

Thanks for all the info Brian / Dave, I quite like reading his site although some of it gets a bit headache inducing. On the plus side I am competing with his kit in terms of price if not technical ability :D as the ASI1600mm Pro is a similar cost of camera and I have it attached to the end of a APM...
by nexusjeep
Fri Jan 11, 2019 10:25 am
Forum: General Discussions
Topic: Dark and Flat subtraction
Replies: 2
Views: 71

Dark and Flat subtraction

Hi, I know that I can subtract flats and darks from the light frame so that the stack shows the corrected image, my understanding from the manual is that if I have save individual frames enabled then these frames will also contain the correction as well. Am I misinterpreting this as ideally I would ...
by nexusjeep
Fri Jan 11, 2019 8:56 am
Forum: How do I?
Topic: Brain Function and Narrow Band
Replies: 25
Views: 238

Re: Brain Function and Narrow Band

Hi Brian, The article is here http://www.clarkvision.com/articles/astrophotography.and.exposure/ I am not trying to be difficult or anything just trying to get to grips the differnt pro's and con's and also always happy to read new information, the only thing i find is that a lot of the information ...
by nexusjeep
Thu Jan 10, 2019 10:22 pm
Forum: How do I?
Topic: Brain Function and Narrow Band
Replies: 25
Views: 238

Re: Brain Function and Narrow Band

But surely read noise is insignificant compared to the background noise level coming from the sky glow as this will increase faster than the read / dark noise of the sensor which I believe is one of the features in the brain calculation and the purpose of measuring the sky before the calculation is ...
by nexusjeep
Thu Jan 10, 2019 10:41 am
Forum: How do I?
Topic: Brain Function and Narrow Band
Replies: 25
Views: 238

Re: Brain Function and Narrow Band

Hi Brian, I use live stacking to see what we are getting but also save the individual frames and then process these through APP afterwards to generate the final integration that is then registered and combined to give me a colour image. That way I can subtract Bias / Darks / Flats / Dark Flats from ...
by nexusjeep
Wed Jan 09, 2019 10:20 pm
Forum: Gallery
Topic: Live Stacks January 5 and 6 2019
Replies: 11
Views: 204

Re: Live Stacks January 5 and 6 2019

Very impressive just started playing with live stacking and the brain function so will now have to experiment more, that's the fun with astrophotography you are always learning and can always improve. The only downside is being monochrome it takes me a bit longer to get to a colour image. Cheers Nick