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10 questions linked to/from Multiple copies of the same exposure, but randomizing the noise?
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26 votes
7 answers
29k views

How can I avoid star trails without an expensive tracking mount?

I want to take pictures of the Milky Way or a lunar eclipse or earth glow on the moon, but I don't have an equatorial tracking mount, and don't want to spend that much money on one. How can I get ...
Evan Krall's user avatar
Evan Krall
  • 12.3k
33 votes
4 answers
18k views

Why am I unable to capture as many stars as I can see with my eyes with my new DSLR?

I have recently been given a Nikon D7000 as a gift. I have been trying to take pictures of stars on very clear nights. However, I am unable to make the camera capture many of the stars. My eyes seem ...
thegreyspot's user avatar
thegreyspot
  • 433
32 votes
2 answers
4k views

What is noise in a digital photograph?

What kinds of effects are present in digital images that are referred to as "noise"? What are the different sources of noise? What causes each type of noise? What are the characteristics of the ...
Martin's user avatar
Martin
  • 632
13 votes
2 answers
1k views

How can I achieve more clarity in my photos of the moon?

I took this photo of the blood moon this morning and I am finding many of my photos, especially landscape photos, have a significant lack of clarity. I'm not looking for a photo critique because I ...
Joshua Belden's user avatar
Joshua Belden
  • 235
3 votes
4 answers
2k views

What equipment do I need for astrophotography?

Is it possible to create a picture like the following, using a D7100 camera with a standard 55-105mm lens. If not, what is needed for this kind of photography?
localhost's user avatar
localhost
  • 219
3 votes
2 answers
2k views

What features to look for in a motorized DSLR mount for astrophotography?

I'm planning a foray into astrophotography, and am looking for some advice on features to look for in a motorized equatorial DSLR mount. I'm interested in both wide angle and deep field pictures. I ...
Derek Blanchard's user avatar
Derek Blanchard
  • 31
2 votes
3 answers
531 views

What should I look for in a camera for shooting in bulb mode for astrophotography?

I am interested in astrophography and I would like to learn and experiment with long exposure. I have been looking around for some dslr cameras but I can't find much information about bulb mode for ...
BustedSanta's user avatar
BustedSanta
  • 131
3 votes
1 answer
806 views

How do star trackers work to take a photo for 5 minutes without blur, and are they worth it?

I'm contemplating trying to make one of these star trackers, but after everything I've read, including the two star tracking related stackexchange posts, I don't know if I understand how they work. (...
user3768258's user avatar
user3768258
  • 61
1 vote
2 answers
746 views

Astrophotography: Balancing the ISO value

I went outside last night and made some... pictures. The details about my setup: Sony alpha 6000 Varexon 2.8/135mm lens (would be 202.5mm on 36mm film) ISO 25600 3 seconds (a bit too long, given the ...
user258532's user avatar
user258532
  • 619
4 votes
1 answer
480 views

Which tracking motor to use for low-end wide-angle astrophotography?

I'd like to dabble in photographing the milky way in wide-angle, say 10mm, with long exposure times/time lapse, and maybe some longer photography lenses, but not mounted to a telescope. To avoid ...
pascal's user avatar
pascal
  • 171