Summer Start

by VonSchnauzer

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

the process of combining multiple exposures to increase sharpness, reduce noise or for special effects, e.g. star trails

learn more… | top users | synonyms

0
votes
3answers
93 views

Linux software for stacking and RAW processing

I'm starting with astrophotography and my DSLR produces CR2 raw images. I use Linux and want to stack series of shots and do RAW processing (curves, RGB balance, etc.) I googled and found software ...
1
vote
2answers
54 views

How to stack photos manually?

I want to stack x number of photos to incrase the exposure of the final image. But I need to do it manually, I mean, using Photoshop but without using wizards. My approach would be using a layer for ...
0
votes
1answer
82 views

Stacking photos for moon movement [duplicate]

I took many pictures of the lunar eclipse from last week with a stationary camera and now I want to merge them so I get something like http://wordlesstech.com/2011/06/26/eclipse-over-the-acropolis/. ...
30
votes
4answers
2k 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 ...
12
votes
2answers
394 views

What causes and how can I avoid this moiré pattern in a composite night sky photograph?

I'm new to taking star trails, and fairly new to photography in general. After my first attempt at taking a star trail, I composited them in Photoshop and when I merged the layers I got this pattern ...
1
vote
3answers
516 views

Does median blending / image stacking result in better or worse results than a long exposure?

For night photography, do long exposures work better or worse than taking a few photos and merging them in software (median blending / image stacking, like the excellent iOS app Cortex Camera)? You ...
0
votes
2answers
99 views

Image stacking with different camera settings

I'd like to be able to stack multiple images to reduce noise. In the past, I've followed the approach found at Cambridge in Colour: averaging images. Simply put, I bring all of the images into ...
3
votes
3answers
655 views

Stack star photos without trails but WITH sharp foreground?

I have a Nikon D5100 and a Tokina 11-16mm f/2.8 I want to stack multiple star pictures while also keeping some interesting foreground for context. I don't want star trails though. I understand that ...
2
votes
1answer
178 views

What is the efficiency of Bulb mode vs taking multiple shorter exposures?

When looking at taking photos such as star trails where it requires a significant exposure time, is it more power efficient to use Bulb mode or taking multiple shorter exposures? Would keeping the ...
6
votes
2answers
418 views

Deep Sky Photography with telescope without Tracking

I tried photographing moon and Saturn with a 8'' Dobsonian (without tracking). And it was a breeze. But I had to follow the '600 rule', i.e I only exposed it for less than (600/f) sec ~ 1/2 sec. But ...
5
votes
1answer
264 views

How can I align two panoramic images?

I have two panoramas, which are already stitched. They were taken four years apart, of the same town from the same location. I want to align them and show them side by side, so that the viewer can ...
3
votes
5answers
3k views

Can I get longer than 15 second exposure with my canon SX 50?

I am new to photography and I was hoping to go take some pictures of star trails this weekend. I just bought this camera this week and I realized that the highest shutter speed is 15 seconds. Is there ...
4
votes
2answers
242 views

Where can I find or make a script for focus stacking using Raynox DCR 250?

I am looking for a script for focus stacking with Raynox DCR 250. There is already default script there but it is linear and that is better suited to stock lenses and, with the Raynox 250 attached, I ...
9
votes
4answers
2k views

Can stacking multiple exposure images in post-processing give the same effect as a long exposure?

I like to shoot daytime long exposures, where the exposure time is around two minutes. That shows the motion of the clouds in daylight. I used a Hoya nd400 (which is 9 stops) stacked together with a ...
18
votes
6answers
1k views

ND Filter not Dense enough - How do I get long exposures in very bright situations, where my ND filter isn't enough?

What is the best way to achieve very long exposures in very bright, sunlit conditions? Right now, I have a Hoya ND-400 X filter (9 stops reduction), and even with my camera set to ISO 50, and F22, my ...
5
votes
5answers
469 views

What is it called when multiple photos are adjusted for further blending?

I have taken a series of noisy photos without a tripod. I want one less noisy version, so I need average them down to one photo. But details of the individual images do not exactly match, so that ...
7
votes
3answers
4k views

Best opensource/ free stacking software for mac for astrophotography

I am using snow leopard and mainly want it to automate the stacking as much as possible. I have seen that PixInSight looks pretty awesome, but that's not free, in-fact far from it, so I want something ...
14
votes
4answers
3k views

How can I simulate a long exposure photo using a set of shorter exposure photos?

I'm shooting towards the sky to capture the stars. The exposure time is 15 seconds, so I can see the stars still, without a trace. These photos are taken continuously one after the other, because I ...