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Hi! I've recently acquired a new Astromodified Canon rebel XT and I've tried to take pictures of nebulas using it but I've noticed that there are these weird black artifacts that keep appearing in my images. Would like to know if anyone has experienced this before? Or are these dirt/dust specs on the camera, filter, and telescope glass? I've attached some of my edited and raw pictures for your reference. The black artifacts can already be seen in the raw image of the horsehead nebula and after stacking I think it got amplified. Anyway, advance thanks and I hope everyone's doing well.
Need a bit of help to narrow down what I see, I've wanted to buy a telescope a year ago but a couple of things stopped that decision.
Saw a strong bright glowing star in the cloudless sky so I picked up my old binoculars laying around. I appended three images, one what my phone saw, secondly the raw image, thirdly a star map pointing towards the object (center-ish).
I know it feels pretty laughable for s.o with an 8" GOTO + 5 yrs of experience, but maybe we can attempt to locate the object anyway ;)
To celebrate the 25th anniversary of Sir Patrick's DSO catalogue, I've added the available Caldwells to my basic Marathon search sequence.
Those interested may be pleasantly surprised by how many of the additional treasures are only a short hop from a given (or en route to the next) Messier.
The sequence for 40°N can be found at the SEDS Messier Marathon homepage or at my blog.
So, although I had some issues with my auto guiding (which I found out afterwards) I did manage to get 9x180s exposures and 5 darks of Andromeda and give both stacking (using DSS) and processing (using GIMP).
My first attempted DSO....
I am pretty sure that people could get far more information out of the TIFF file from the stack.
Hopefully I will get another clear night soon. I am in a heavily light polluted area so I do have a clip in filter on my DSLR which I think took a lot away.
More practise needed!
Hi Guys! My first post :)
I’ve decided to take the plunge and begin the hobby..or addiction of Astrophotography!
About 8 years ago I purchased a 2nd hand EQ6-pro, I’ve only ever really used it for visual through a 6 inch Newtonian. All I could see was grey fuzz or the moon!lol so I got bored and put it away in a cupboard!
For a few years now I’ve been taking wide field Astro photos using my DSLR and 14/24mm prime lenses which has given me the bug again!
I want to start taking images of galaxies and nebulae and all that good stuff which I simply can’t get with with my wide lenses.
My plan was to get a small refractor like a WO Z61 or Z73, field flattener and mount my 6D DSLR to it, Plus use a small auto guiding package.
Run everything off a laptop
My question really is...is my mount up to imaging?
Things have come on a long way in mount technology I guess since I last looked at buying one so I’m wondering, imaging wise if I’m best selling on the old EQ6 pro and buying something more up to date?
If my old mount is able to work and work well is there anything I can do to it to improve it?..Strip and Regrease ...Belt Mod...??
ive never had it apart before, nor do I really know how it was used before I bought it so it might need a good going over it might not...is there any way to tell for potential issues?
Im happy to do any work myself I’m pretty handy with mechanics
looking for advice really wether to stick with this mount or look for something new.
if new, max budget is around £800
any advice greatly appreciated :)