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Having upgraded from canon 1000D to Nikon D5300 how do users of the 5300 find it for Astro I will be using with APT , and how do you take flats as I can’t use Av mode as there is nothing in tools menu to choose no lens , do you use in manual mode and look at histogram ? .
I'm working with some recent data of a new(ish) camera, and my Ha data is pretty good, but the oiii has these strange artifacts around the borders.
If I use any kind of local normalization then it pretty much ruins most of the image, as you can see below..
First the Ha:
Oiii with local normalization:
oiii local normalization map, see how it fits with the artifacts:
Oiii without any local normalization:
These edge artifacts, could they be related to a bad filter or is it a processing artifact, has anyone seen anything similar?
I am using Astro Pixel Processor for calibration and stacking.. Im kind of stumped on this one, and I am going to yank out the Oiii filter this weekend to have a looksie.
By Kcks Regulus Star
On the 2nd of July I closed my curtains one night before I went to bed but, before they were shut I noticed a strange multicoloured light flickering low in the sky in the northern celestial hemisphere. I Thought to myself if that is a star it looks amazing. The next night (3rd of July) I decided to take another look at this multicoloured light which was still there, Only this time I used my binoculars, I was seeing blues, greens & reds. We have all seen stars by looking up into the sky but, I have never seen a star create multi colours before. It makes you feel excited inside and you think that no one else can see this until you tell them and share the same experience together. I believe I was looking at the Capella Star which is the brightest star in the constellation Auriga and your not kidding it is bright. I cant wait to have another look tonight to see if the multi colours are still there. I would like to have taken at picture of it but I am not setup to do that just yet as I am very new to star gazing. I wish someone here can confirm what I saw and to post a picture of it would be awesome.
Nikon Prostaff 3s 8 x 42
By Anne S
Following a filter size upgrade I have an Astronomik LRGB set of filters, 1 1/4 inch. Probably around 12 years old. Kept in a filterwheel when in use but they have also been stored for a couple of years in their original box when I acquired some Baader ones to match my Baader narrowband filters. No scratches or coating issues. I have tried to show this in the images attached.
Looking for £80 posted given their age.
I joined the forum to learn more about risks and success of filter removal for UV and IR photography.
Back in 2011, one of the group's members, was trying to do just that:
Unfortunately Stephen hasn't been active in the group since 2014, but the filter removal appears to have gone well (at least the S3 wasn't killed in the process).
I have the same exact camera and I'm looking forward to try the same exact procedure. Does anyone has any tips on how to do this successfully/safely?