All Questions
412 questions
10
votes
4
answers
3k
views
Are these stars or noise around Saturn?
This is a pic of Saturn taken last night and i see lot of stars though only 1 or 2 were visible in raw photo hence confused if it is just noise as i have boosted whites and exposure a lot. No stacking ...
- 101
0
votes
3
answers
251
views
What causes intense red flares in the sky around midnight?
Last night (2024-10-12 01:09 thru 01:11 CEST) I made a couple of pictures of the starry sky and found some strange flares right above the horizon. See the picture fragments below. All pictures have an ...
- 608
1
vote
1
answer
139
views
How can I improve my Milky Way photography?
For the first time, I took Milky Way pictures last night with a Canon 18-55mm lens, ISO 6400, f/4, 30 sec. I took 10 light and 10 dark pictures, then stacked them in DeepSkyStacker. It turned out as ...
- 21
1
vote
0
answers
53
views
What's the next step to improve my Milky Way photography? [duplicate]
For the first time, I took Milky Way pictures last night with a Canon 18-55mm lens, ISO 6400, f/4, 30sec. I took 10 light and 10 dark pictures, then stacked them in DeepSkyStacker. It turned out as ...
- 21
1
vote
0
answers
112
views
Hot do I get rid of satellite trails on astrophotos?
I tried to photograph the Northern Crown constellation last night (2024-05-10 23:40 UTC), but it was crossed by satellites several times:
Here are the parameters of both pictures: 24 mm, f/4, 10 sec, ...
- 608
4
votes
2
answers
243
views
Removing a color gradient from the Crab nebula in GIMP
I'm new to this stack. I have a question about astrophotography.
A while ago I took pictures of the crab nebula with R, G and B filters with a 120cm telescope. These pictures have already been ...
- 143
1
vote
4
answers
297
views
How does image stacking work with astrophotography, when then sky rotates and therefore causes misalignment of the stack images?
How does image stacking work for astrophotography? If you were to stack the photos onto each other, then surely they would be out of line, due to the stars moving, right? Even if you take pictures ...
- 127
0
votes
2
answers
395
views
No flash mode pictures
OK so I'm an absolute beginner when it comes to photography. But here's the thing when I try to Take a picture in the no flash mode in the dark it won't take a picture but if I go into some light ...
17
votes
3
answers
5k
views
How can I make the milky way more apparent in my photos?
I was using 6400 ISO with a f2.8, 28 mill lens with a .46 adaptor on a canon m50 for about 15" for this photo. I tried a 1.8 50 mill, 28 mill w/o adaptor, longer exposure, shorter exposure, ...
- 171
0
votes
1
answer
352
views
How can I photograph the annular eclipse high in the sky and still get a foreground in the image using 500mm lens?
How can I photograph the annular (or partial) eclipse high in the sky and still get a foreground in the image using 500mm lens?
In particular, I'm interested in:
If a 10 or 15 stop ND filter would be ...
- 1
2
votes
2
answers
585
views
Convert Zoom % to Focal length
My Panasonic FZ70 zooms to 60x. The only focal length indicators on the lens are the minimum (20mm) and the maximum (1200mm). There is no indication of focal length as I zoom in or out; the ...
- 23
3
votes
2
answers
277
views
Continuous shooting without deadtime
I have a Canon 200D am I'm looking for a way to shoot a sequence of 10 pictures with a high exposure time (8s), minimizing the delay between the end of one exposure and the beginning of the following.
...
- 41
1
vote
3
answers
414
views
Why are larger apertures used for astrophotography? [duplicate]
Learning about aperture, and depth of field.
I have understood it as such
...
- 155
0
votes
2
answers
178
views
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 ...
- 219
0
votes
0
answers
23
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 ...
3
votes
1
answer
184
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 ...
- 143
4
votes
2
answers
2k
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 ...
- 111
1
vote
2
answers
373
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 ...
- 219
1
vote
0
answers
98
views
AF not working on Manual mode AV or TV mode, and shutter not opening. however both AF and shutter opening on auto and not flash -EOS400d
I am testing an old EOS 400d to see if its worth using-
on auto mode and no flash mode- the camera focuses, I get the green light then it takes the photo once I fully press the trigger button,
in all ...
- 11
2
votes
7
answers
706
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 ...
- 514
1
vote
1
answer
169
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 ...
- 608
3
votes
4
answers
210
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. ...
- 31
0
votes
1
answer
472
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 ...
- 3
3
votes
3
answers
534
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,...
- 608
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 ...
- 223
3
votes
3
answers
878
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 ...
- 133
0
votes
0
answers
70
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 ...
- 111
3
votes
1
answer
446
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'...
- 608
2
votes
1
answer
218
views
Canon 40D ERR 01 lens error on manual only- is hope for the lens lost?
I am a high school teacher working with a donated canon 40D to loan to students for projects.
A student wants to shoot manual mode on the camera, but the lens (Canon Ultrasonic EFS 17-85 mm) won't ...
1
vote
0
answers
47
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 ...
- 111
2
votes
3
answers
2k
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% ...
- 261
2
votes
1
answer
344
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 ...
- 1,817
3
votes
1
answer
289
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 ...
- 359
4
votes
2
answers
406
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 ...
- 41
2
votes
4
answers
1k
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 ...
- 131
1
vote
1
answer
420
views
Why won't my Canon 400D/XTi turn on/off properly?
My camera is a Canon 400D (digital rebel XTi). It sat on a shelf for quite some time.
When I insert a (newly charged) battery, the camera doesn't switch on. I get this screen:
and switching the ...
- 11
6
votes
1
answer
252
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 ...
- 1,817
2
votes
1
answer
109
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 ...
- 263
5
votes
3
answers
276
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 &...
- 53
3
votes
2
answers
270
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: ...
- 33
1
vote
1
answer
177
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 ...
- 231
5
votes
2
answers
379
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 ...
2
votes
1
answer
579
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 ...
- 1,628
2
votes
3
answers
216
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 ...
- 1,628
3
votes
3
answers
399
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 ...
- 1,633
7
votes
1
answer
2k
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 ...
- 73
3
votes
3
answers
817
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 ...
- 31
2
votes
2
answers
600
views
How to distinguish between real stars and noise?
JPG 3468X4624
f/1.8
5.23mm
10sec
Iso:1600
[13]: https://i.sstatic.net/70iZf.jpg
- 21
8
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"...
- 608
3
votes
1
answer
100
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 ...
- 131
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