Questions tagged [astrophotography]

Astrophotography is the type of photography specializing in celestial objects such as the sun, moon, stars, and sky.

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4answers
2k views

Multiple copies of the same exposure, but randomizing the noise?

As a budding astrophotographer, I find my results are still largely hit or miss. Sometimes the standard procedure of stacking multiple exposures to randomize the noise and boost the signal works ...
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2answers
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Barlow vs eyepiece projection: which is better for planetary and nebula photography?

Which is best for planetary and nebula imaging? Barlow or eyepiece projection? I have Celestron Travel Scope 70mm telescope and use a Nikon D3300 camera. I need to take photos of planets and nebula ...
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383 views

Portable astrophotography mount/tripod suggestion

I have a while doing astrophoto with a DSLR and a IOptron Skytracker, and I'm looking to advance in astrophotography. The problem is that I live in Canada, Montreal to be exact. The weather here is ...
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1answer
411 views

What is a tracked and un-tracked image? I can't find anything about it.

I've been trying to figure out from seeing an Instagram photo where the guy made a long exposure shot combining the stars and the crashing waves into one and I can't understand how he did it. He said ...
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1answer
413 views

How can those star-trails be non-circular?

Due to the rotation of the Earth, over the course of the night, stars will appear to turn around the celestial pole. This means we can photograph star trails (desired or not). Physically, any star ...
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Further improving my astrophotography

So, I've built a barn door tracker: and I was astonished that pictures just got better: That's Alcor and Mizar, and in the top right part, the fuzzy thing is the Pinwheel Galaxy (M101). It's a ...
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2answers
965 views

Which lens is recommendable for landscape astro photos with Sony A7Riii? [duplicate]

The new Sony A7R III has a 42 megapixel sensor and both a really good resolution and overall photo quality. But it is also challenging the lenses. So far, there is only one ultra-wide angle lens for ...
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6answers
5k views

Which planet looks the biggest through a camera? Which planet is the easiest to take a picture?

I wanted to start astrophotography. Let's assume that I want to take pictures of planets when they are the closest to the planet earth, which planet would look the biggest thought a telephoto lens? ...
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530 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 ...
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2answers
628 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 ...
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211 views

NIght Photography while at sea

My son is in the US Navy. He wants me to figure out which compact camera would allow him to take pictures at night while at sea of the stars, and bio-luminescence. Unfortunately, while he can use a ...
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2answers
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time-lapse photograh

when i have a sequence of individual pictures, how can I create a single frame like this? My tools are GIMP and/or Darktable. Kindly help.
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7answers
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What are the reasons for not taking super long exposures (hours) in astrophotography?

I am doing some research to get into astrophotography. Most of tutorials recommend taking multiple exposures and then stacking them. That makes me wonder: provided that the camera is on a tracking ...
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1answer
1k views

The right aperture for capturing stars?

I recently had the chance to photograph an astronomical event - and this was my first foray into night-sky photography. I had two lenses that I used: 85mm f/1.2 shot at f/1.2 through f/2.8 16-35mm f/...
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1answer
148 views

How to get Canon 1200D quantum efficency plot?

I've searched quantum efficency of Canon 1200D and I found some images like here: http://www.deep-sky.co.uk/imaging/dslr/dslr.htm . How these people get quantum efficency plots for mentioned Canon 40D?...
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3answers
160 views

What is the reddish cloud in the center of the photo?

I am a beginner at photography, I tried to click photographs of the night sky. The image has a weird reddish cloud at the center, I first thought it might be because of light pollution but then I ...
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1answer
211 views

Why is DeepSkyStacker output resolution off?

I am using DeepSkyStacker version 3.3.2 to stack 20 light frames of some stars. The registration and stacking goes off without a hitch, but the resulting image resolution has drastically changed. The ...
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4answers
385 views

Are fast lenses needed for astro photography?

I'm experimenting more with astro photography at the moment, and have seen tips saying 'use fast lenses'. So far I'm usually at around f/4-5.6, so not exactly fast. I know I'm placing more load on ...
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2answers
731 views

What attributes of a bridge camera are most important for astrophotography?

I am planning to take a bridge camera, which apart from the usual personal events usage would be used for astrophotography. I have seen the models and most of them have decent zoom to start off with. ...
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3answers
672 views

Why is my nighttime sky image so poor (few stars and a yellow glow)?

I am new to astrophotography and I take most of my pictures at around 11pm, which is reasonably dark. The only lights which are on near me are street lights and they are behind trees. I am struggling ...
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1answer
652 views

Can I take clear night sky photographs with my smartphone?

is it possible to take clear night sky shots with stars/ planets visible from Redmi Note 4? what settings do I use? when I try to take it just comes black, unless on full moon day with HDR, though ...
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4answers
272 views

Is this an ISS capture?

I am not sure my question is on topic but I am going to fire it likewise. I was wondering about the straight line captured in the picture posted at the bottom left side. If not mistaken, I 've seen ...
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1answer
340 views

Do I need to take bias frames for long exposure astrophotography?

I have read many places that for the best calibrated astrophotographs, you should be taking bias frames, dark frames, and flat frames. But on a forum I read the following statement You usually don'...
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1answer
376 views

Siril stacking algorithm

I am looking at the tutorial page for the astrophotography image processing software "Siril". I am trying to determine which stacking algorithm I should be using. Based on the information on the ...
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2answers
175 views

How to take astrophotographs with terrestrial objects in frame

I have quite often viewed widefield astrophotographs with terrestial objects in frame, most commonly mountains. Based on what I have learned on astrophotogrphy, it seems like these photographs must ...
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2answers
1k views

Does FITS file format contain color information?

I am trying my hand at astrophotography. I am using the software Siril on Linux to stack my images. This software uses the .fit file extension (for the FITS format). It seems to me like FITS is in ...
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3answers
380 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 ...
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1answer
684 views

why do I have red dots all over the foreground of my stars long exposure shot [duplicate]

I have a 60D and have never had this problem before although I have never set the exposure for 30 minutes I am so disappointed its a great shot
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4answers
290 views

How can I get settings right on my new DSLR for twilight moonsets and moonrises? [duplicate]

I recently got my first DSLR, and am trying to learn the best approach settings-wise for a specific type of photo, namely twilight moonsets and moonrises. The camera is a Nikon D5600 which came with ...
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4answers
1k views

How can I avoid star trails? [duplicate]

When shooting deep sky objects such as Andromeda or the Orion nebula, I find that I'm between a rock and a hard place. I can get passable results by running 3600 ISO and four second exposure. Any ...
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3answers
9k views

Are there image stacking (astrophotography) options on MacOS that don't involve running a Windows VM?

I am starting in astrophotography. I want to create a "non star trail/track" result similar to what you would get with software like Deep Star Stacker in Windows, but I use MacOS. Do I have any ...
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3answers
468 views

Which parts are needed to mount Nikon DSLR on Meade Telescopes?

I'm an amateur astrophotographer. Recently I got a permission from the university to use their telescopes in their observatory. All their telescopes are Meade. I would like to mount my Nikon D5300 ...
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1answer
160 views

What is this random white dot in only one photo of Eagle Nebula stack?

A few hours ago, I've taken 178 images of the Eagle Nebula/Omega Nebula area of the milky way using Canon EOS 5D Mark IV, iOptron SkyTracker, and Canon EF70-200mm f/2.8L lens. As I'll be stacking ...
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5answers
8k views

Why do stars appear as circles, not points?

Excluding the Sun, stars are so far away that their angular diameter is effectively zero. However, when you take pictures of them, brighter stars appear as circles, not points. Why? In theory, any ...
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2answers
419 views

How to create stationary eclipse timelapse w/o tracking sun's movement?

I took a timelapse of the 21 Aug 2017 solar eclipse. I did not have the ability to track the suns movement so every ~15 minutes I adjusted the camera position. I want to create a timelapse that ...
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1answer
293 views

What are some general rules for astrophotography?

What are the generally accepted guidelines for iso, f-stop, aperture, etc. that help take better pictures of the stars? In the past I've mostly used a small webcam that fits over the eyepiece of my ...
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2answers
215 views

How to know which cameras pre-process raw files?

For some photographers it is important to receive unadulterated raw files which have not been pre-processed by the camera. For example, Nikon is known to apply denoising algorithms on sensor data ...
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2answers
2k views

Best way to remove the red tint in shadows astrophotography

Recently I took a picture of the milky way from inside a cave. I've processed everything how I wanted and it looks great on the web but now I need to print a large version of it (610mm x 900mm). ...
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3answers
1k views

What are the features needed in a DSLR for astrophotography?

I'm a person who's in love with the night sky, so that I want to capture some beautiful moments I experience. I'd like to buy a new DSLR , but I already have a Nikon D5200 and I I tried so much to get ...
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1answer
691 views

Milky way Photograph with Point and shoot?

Well the title keeps hardly anything for you to imagine. I'll be going to the Mountains in a few months and love to click when I feel like. So, was wondering, is it possible to capture the Night sky (...
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791 views

Image Stacking for noise reduction using MATLAB [closed]

I'm new to Image processing and started using MATLAB for Astrophotography processing. I'm trying to process 10 corrupted images (Same Image but mixed with different noise) of Planet Saturn using ...
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2answers
548 views

Milky Way over the Grand Canyon

I have read all the information and feel like I have an understanding of all that I need to do to get pictures of the milky way over the grand canyon.....but...I only have 2 options for camera Canon ...
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4answers
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Focus to infinity with 10-18mm canon lens

I am using a canon 10-18mm wide angle lens on a Canon t3 camera. I want to try shooting some stars at night. So I want to focus the lens to infinity. But the lens has no hard stop to it, or any sort ...
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4answers
4k views

Why is the Sony 28mm f2 so much cheaper than than Zeiss Distagon 35mm f1.4 - and which is better for night shots?

I currently have a Zeiss 16-35mm f4 lens for ultra-wide shooting. I think this lens is a good all-rounder, hence why I bought it. However, there are two areas that I need to address: 1) the f4 ...
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1answer
195 views

Is it possible to change the exposure compensation on a Olympus OM-D in Manual Mode?

Is it possible to change the exposure compensation on a Olympus OM-D in Manual Mode? ISO, SS, and F all are set manual for star photography
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Photostacking - Why does this technique fail for my astrophotos?

Last week I went to Tahoe to do some astrophotography. I watched this video (https://www.youtube.com/watch?v=Rydg7JGTAbw) about image stacking to reduce noise in my photos so I decided to give it a ...
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2answers
668 views

How to know the resulting iso of stacked images?

I've read in several questions like this one that stacking photos helps to reduce the noise of the resulting image, which is really helpful in astrophotography. My question is if I can know a priori ...
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1answer
1k views

How does wavelet sharpening actually work, eg. in RegiStax?

I recently came across some demonstrations on how to use RegiStax6 and its Wavelet filters to sharpen images, especially planetary shots. The instructions I found and read/watched all had in common ...
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1answer
462 views

How to calculate very long exposure times?

I know to create a star trail image it is possible to stack many images taken over a period of time. However I recently saw an image which had been done as a single exposure of 1 hour. How do you ...
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3answers
404 views

Photo moons of Saturn

I have the Canon PowerShot SX410 IS. Last year with some help, I was able to photograph Jupiter and its moons. Now, in the coming Spring, I want to make a photo of Saturn's moons. I know Saturn's ...