Photography

Questions tagged [astrophotography]

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

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When is heat distortion (air turbulence due to heat source) significant in a telescope?

I have this "cognitive dissonance" regarding heat sources at or near a lens (or more specifically, a telescope acting as a lens, as used for astrophotography). On the one hand, a common ...
Cal-linux
  • 207
0 votes
0 answers
18 views

Issue in file selecting to stack in Registax5

I have taken 1998 images of sun using a neural density filter. I preprocessed the images using PIPP and got a list of cropped images which were arranged in order of their quality. But then when I try ...
Anubhav Prakash ph20b003
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2 votes
1 answer
61 views

Calculate the ideal geometry of a Bahtinov mask for 200 mm MFT

I want to use a Bahtinov mask to focus stars with a Panasonic Leica DG Elmarit 200mm f2.8 MFT. So far I found out that the geometry of the perfect Bahtinov mask changes significantly with the lens ...
Jonas Stein
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4 votes
2 answers
1k views

How can I find a lens locking screw if I have lost the original one?

I have an industrial camera with a C-mount lens, like this one: (Source of image, last accessed 2022.11.02.) You can see a tiny screw on the top of the picture. It is used to lock the focus ring or ...
LimeAndConconut
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1 vote
2 answers
309 views

Do "water repellent" coatings such as the Hoya HD3 or EVO filters prevent condensation/dew?

As asked in the subject — do they help? do they entirely eliminate the problem within "reasonable" humidity levels? In the manufacturer's description, they only emphasize the aspect of being ...
Cal-linux
  • 207
2 votes
7 answers
502 views

Why is the commonly utilized aperture for moon photography much higher than that provided by DoF formula?

in this Moon Photography Guide, a F-Number equal to f/11.0 is suggested. In many answers in this forum, similar values are suggested (ranging from f/8.0 to f/11.0). Even if someone suggests f/5.6, it ...
Kinka-Byo
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1 vote
1 answer
151 views

Why is the starry night sky so unaturally bright?

The night sky in my vicinity has been rather poor in stars even when it was (presumably) clear of clouds: You can see an slight orange glow, which hides faint objects in the sky. Here is a full-size ...
Neppomuk
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3 votes
4 answers
126 views

What are must-haves for a beginner in wildlife photography?

I've enjoyed taking pictures of wildlife on my phone for a while, especially birds, and would like to get a camera to get better quality images. I would possibly like to try some astrophotography too. ...
Rachael
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0 votes
1 answer
246 views

FOV on an APS-C and Full frame 'lens' [duplicate]

So this is a question about aps-c and full frame 'lenses' and not sensor format. My sensor here is constant - a Canon APS-C. This might be an already answered question but I couldn't find any that ...
NRB
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3 votes
3 answers
327 views

Why does the live view feature of the EOS 70D only show one bright star when doing a starry night shot?

I once got a recommendation to use the live view (on-screen preview) feature to aim the camera (EOS 70D; astromodified) when shooting astrophotos. But even with the largest aperture (f/4) and ISO (12,...
Neppomuk
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12 votes
5 answers
3k views

Photo of sprites in a clear dark sky, is this possible?

On Earth Science StackExchange (ES-SE) we recently discussed this question: Photo of sprites in a clear dark sky, how is this possible? A photograph of Red Sprites was captured by David Finlay (see ...
Joscha Fregin
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2 votes
3 answers
247 views

How to process photos of night sky taken from smartphone

I'm from Karachi, Pakistan. I'm very much interested in astrophotography but currently, being not much able to afford high level equipment, I try to work on my smartphone and learn from basic YouTube ...
TalESid
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0 answers
59 views

What features for starting astrophotography? [duplicate]

I'm looking to start astrophotography with my son. I've had some small success with getting bright stars on camera and planets in camera with my phone (sony Xperia 1 ii), but I want to make the jump ...
bizzehdee
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3 votes
1 answer
301 views

Does Hugin support stitching pictures of the Moon?

I'm trying to stitch two incomplete pictures of the Moon together by using Hugin, but it doesn't find even one single control point, so I'll have to combine everything by hand. Here are the two pics I'...
Neppomuk
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1 vote
0 answers
46 views

First lens for astrophotography [duplicate]

I'm only starting with astrophotography, and need some advice on which lens to buy for my Canon 250D (SL3). Currently i have only kit lens and Canon 50mm f1.8 stm. The idea was to start from something ...
kodlan
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2 votes
3 answers
324 views

Proper exposure for taking a sunset, stars, and moonrise timelapse

I'm planning to take a sunset to nighttime to moonrise timelapse. On the day in question, the conditions are: Sunset at 7pm Nighttime at 8pm Milky Way visibility at 8:30pm Moonrise at 2:30am at 15% ...
oneself
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2 votes
1 answer
268 views

How (the heck) did NASA photographer Joel Kowsky take this amazing photograph of the International Space Station transiting the Sun?

The NASA Image Feature Space Station Transits the Sun shows seven shadows of the ISS transiting the face of the Sun. In order to discuss the technical aspects of the process I've cropped bits of the ...
uhoh
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3 votes
1 answer
252 views

What is this noise around Jupiter’s moon?

I do some amateur astrophotography and love the photos nasa produces and while looking at this one of Jupiter I noticed that, around its moon, the is a rectangle with a slightly blue tint and a bit ...
Aeon
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4 votes
2 answers
250 views

Astrophotography - Image quality reduced after multiple long exposures

I'm currently using NIKON D5600 for my untracked astrophotography, and depends on the target I need to take up to 100 exposures of 15-20 seconds each. I have a manual shutter remote and I manually ...
ariel
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2 votes
4 answers
869 views

How do I eliminate the shake I'm getting using a supertelephoto lens and tripod to shoot the moon?

I have a Sony 200-600 (~5lb/2.1kg) that I'm looking to use for moon photography with a Vanguard Alta Pro 2+ tripod. I'm also using a 2X teleconverter and an APS-C camera (α6600). However I think my ...
C.E.Sally
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6 votes
1 answer
222 views

Astrophotography in the age of Starlink; can "not a single image be taken that is not stricken" by a Starlink satellite?

In the Space SE question Are Starlink satellites flaring? there was a (now deleted) comment to the effect: I've given up astrophotography because not a single image can be taken that is not stricken ...
uhoh
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2 votes
1 answer
101 views

Arcs in stacked star field [closed]

Stacking by Sequator 100 dng photos of night sky taken with a smartphone resulted in a (beautiful, I would say) populated star field where undesired arc strikes are seen all over the field. It is ...
Alchimista
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5 votes
3 answers
213 views

Perseverance Rover Camera Sensor Resolution

(I have two questions.) I was looking at some pictures taken by the rover Perseverance, on Mars, and it got me thinking about the sensor it uses. Turns out that it uses a, about, 2MP sensor in its &...
poupou
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2 votes
2 answers
202 views

What causes the multiple instances of the same object (star or planet) that appears on this photo?

On a photo I took, there seems to be multiple instances of the same object, is it a result of my low quality camera and lens, or something else? ISO: 3200 3s Body: Sony alpha 57 (mirroless) Lens: ...
Philip J
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1 vote
1 answer
147 views

Micro 4/3 adapter for T-mount astronomy camera?

Does there exist an adapter to mount Micro 4/3 lenses on a T-mount camera (43mm x 0.75mm thread)? I want to attach the Mitakon Zhongyi Speedmaster 17mm f/0.95 Micro 4/3 lens to an Atik astronomical ...
nerdfever.com
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5 votes
2 answers
357 views

How can I improve my milky way photographs?

I am new to the astrophotography world. My camera is a Canon SL2 and I use a Tokina 11-16mm trying to shoot the milky way at 14mm I noticed that my milky way shots do not look remotely close to some ...
Malcolm De Chicoye
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2 votes
1 answer
330 views

How to remove satellite streaks from photos?

I found myself struggling a bit removing satellite streaks from my astrophotography. The best option that I found is to use the Healing brush tool in Photoshop, but this has the danger of removing ...
Jonas
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2 votes
3 answers
170 views

Why does stacking reduce star color?

I attempted to photograph the Big Dipper last summer. While I am very happy with the overall result, I recently found that the color of the stars has been greatly reduced during stacking. The ...
Jonas
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3 votes
3 answers
325 views

Using a tilt shift lens on a star tracker

When I take night sky images I generally try to include a nice landscape in the foreground. I mostly use a 15-30mm F/2.8 lens with a star tracker to get 3-4 minute long exposures of the night sky. I ...
Arjihad
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7 votes
1 answer
429 views

Hydrogen Alpha Filters (Buying The Right One and How It's Used)

I am looking to purchase my first hydrogen-alpha filter to use for day solar (Sun) photography as I just recently purchased a SkyGuider Pro device. However, upon several bouts of research I am at a ...
osswmi
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3 votes
3 answers
490 views

How do I keep it from moving out of the frame so fast when taking a video of Jupiter?

This year on my birthday my sister gave me a 70mm telescope and a small camera. I tried to take a video of Jupiter, so I can learn how to stack and edit astrophotography images. But I noticed Jupiter ...
Adrian
  • 31
2 votes
2 answers
386 views

How to distinguish between real stars and noise?

JPG 3468X4624 f/1.8 5.23mm 10sec Iso:1600 [13]: https://i.stack.imgur.com/70iZf.jpg![enter image description here](https://i.stack.imgur.com/axIn9.jpg)
Arush
  • 21
9 votes
2 answers
3k views

Why is the North America Nebula so hard to see on this astrophoto?

Parameters: Canon EOS 70D, astromodified Canon EF 100–400 mm f/4.5–5.6 L IS Astronomik UHC filter iOptron Pro mount + bar with 1.5 kg counterweight + Slik travel tripod ISO 1000 150 mm f/5 50×13"...
Neppomuk
  • 587
3 votes
1 answer
92 views

Equivalent of the 500 rule for working out how many frames you can take with a given focal length before resetting/moving a manual mount?

I'm new to astrophotography and I don't have a tracker. I just have a light pollution filter, an intervalometer and a camera on a tripod with a few different prime lenses. I'm using deep sky stacker ...
Benj
  • 131
1 vote
2 answers
1k views

Why can't I see anything in the viewfinder or via Live View when my camera is connected to my telescope?

So I recently purchased a Canon T7 and a t-ring & adapter, and extension tube. I have a Celestron LCM 114 and I can't see anything. I attached my camera to the telescope and I can't see anything. ...
Kyle
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22 votes
4 answers
7k views

What causes the fake colors of stars on these pictures?

About two years ago I was at a spot with a beautiful night sky with no moon so I tried to get some pictures of the sky. I wasn't well equipped back then, I had a 35mm f1.8 lens and Nikon D50. I didn't ...
Tomáš Zato
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4 votes
2 answers
610 views

What interval between photos is recommended for shooting meteors?

I plan on shooting the Perseid meteor shower in one of the next nights (probably August 11-12). It is my first time (purposely) taking photos of meteors. I will be using my 18-55mm kit lens (this is ...
Jonas
  • 1,598
10 votes
2 answers
559 views

Why is the earth not overexposed in this star photo from the ISS?

The NASA Image of the day on August 6, 2020, is this picture titled "A Starry Sky Above the Earth's Atmospheric Glow": (Source and full resolution Image) When looking at this photo, I ...
Jonas
  • 1,598
2 votes
2 answers
237 views

Do you have to account for crop factor in the NPF rule?

The NPF rule is somewhat more "advanced" and more accurate than the 600 or 500 rule for astrophotography - both the latter tend to still produce star trails as camera resolution increased in ...
Jonas
  • 1,598
2 votes
2 answers
2k views

How can you stack Photos of a meteor shower?

I plan shooting the Perseids meteor shower this August. It is my first time photographing a meteor shower. This is the gear I will be using Nikon D5300 18-55 f/3.5-5.6 Kit lens A tripod (of course) ...
Jonas
  • 1,598
11 votes
3 answers
3k views

Why do I need a telescope for astrophotography?

I understand visually that through a telescope, deep space objects, planets, etc, look much "better" than through a DSLR lens. However, I fail to find a good, technical reason why is this ...
Paul92
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2 votes
4 answers
440 views

Focussing on a star with wide angle 14mm lens

Has anyone discovered a better way than trial and error to focus on a star - (for Milky Way Astrophotography)? I am using a Canon 5D Mk2 with a 14-40mm lens at 14mm. My Settings are ISO 12800 and ...
Trevor Appleton
  • 21
1 vote
1 answer
102 views

How to better enhance this star field image using Photoshop?

I have a bunch of images I took this night with my binoculars and my phone camera attached to it (8 second exposures using OpenCamera). The light from the city and from the Moon made the background ...
Swike
  • 113
2 votes
1 answer
233 views

Need some help with astro photography

I'm just getting into photography and I'm interested in landscape, astro and macro photography. Because of the comet C/2020 F3 (NEOWISE), I tried to make some pictures during the night, but I think ...
Valbrand
  • 23
3 votes
1 answer
305 views

Dark Frames for Long Exposure on a tracker?

I have come across the concept of dark and bias frames for astrophotography recently. Usually, I exposes my shot for 15+ minutes on a star tracker at ISO=320. I take around 5-8 shots a night and I ...
Tinker
  • 343
9 votes
3 answers
416 views

Why does the NEOWISE comet appear green on my photos?

Last night, I took some pictures of the NEOWISE comet. To my surprise, the comet has a greenish colour on all of them, e.g. this one which I've enlarged a bit: (click to show the original image) When ...
Glorfindel
  • 1,122
5 votes
3 answers
593 views

How to reduce large, agressive color noise?

I tried to shoot an image of Comet C/2020 F3 last night. My settings were ISO 6400, f/5.6 and Shutter speed 2 seconds at 175mm on a MFT camera. As expected, there is a lot of noise, so I planned to ...
Jonas
  • 1,598
2 votes
3 answers
420 views

What camera features do I need to take a clear picture of NEOWISE?

My current digital camera is a Nikon Coolpix L110. Several years ago, I took pictures of a lunar eclipse. The pictures weren't what I wanted. The moon was a featureless white disk with and there was a ...
Melab
  • 121
-1 votes
1 answer
1k views

Is it possible to take ASTRO photography with Nikon 5600

I am using Nikon D5600 with Kit lens 18-55mmF 3.5 to 5. Is it possible take astro photography with this gear. If possible suggest me the camera settings
Siddhu
  • 3
6 votes
1 answer
1k views

How can I use the 200 seconds exposure time in Raspberry Pi HQ camera?

I would like to use the Raspberry pi HQ camera for astrophotography. I have read in the answers and comments on this question that I should be able to use a maximum exposure time of 200 seconds. This ...
xme
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