Intro to image stacking: Step-by-step

[Korak]

Just a really noob question:
Last night finally clouds breaking little bit, so me and my son went to try out first star pics.
Lots of lightpollution coming, and didnt get stars razorsharp. OK thats not problem, more practising.

But question about when trying to do DSS. My RAW resolutions come as they suppose to be 5184 x 3456. Showing only 1336 x 3516.
http://imageshack.us/f/9/rawresolution.jpg/
Thou I can see original resolution on Adobe Lightroom. And when I changed photos to jpeg, and then just trying DSS with jpegs, and you can see photos as 5184 x 3456.
Any ideas what is wrong?

I was using Canon 550D, with ES-F 15-85 IS USM at 3.5F
Took 30 photos @ 20sec ... 10 darks and 10 Bias .. with ISO 1600 (next time trying 800)

And all I can do now, is because something with that DSS resolution change that just playing with 10 stacked jpegs



And here is one raw image 15mm wide same specs as earlier mentioned (worked with lightroom)
http://imageshack.us/f/26/thtitaivas1of1.jpg/

EDIT: Ok, I find the solution. I was using only 3.3.2 ... so 3.3.3 beta45 fix the things for resolution. Now I only wish I can be better photographer LOL

[Slave7081]

Awesome tips i'm reading here.

I can't wait to get back to an area where I can take some night shots again....disadvantage to living in the big city I guess :P

[dragon_irl]

Awesome thread. Delighted I found it and can't wait now for some clear skies!

[spotz04]

Great discussions here but the original link in post #1 is dead. "Server Not Found".

http://www.asignobservatory.com/inde...=84&Itemid=125

Has this tutorial moved?

[shinksma]

It would appear that the website has moved, and that perhaps not all content is updated yet?

http://asignobservatoryii.webs.com/a...graphytips.htm

I've sent a message using the new site's contact page to see if it is possible to get the link re-established to the tips. I suppose a PM to the OP would also be a good idea, since he's still active on POTN. I'll do that next.

shinksma

[A.S.I.G.N. Observatory]

G'day folks, sorry the image stacking guide hasn't been available for a while. I shut down ASIGN Observatory a while ago and have been busy with the new ASIGN Observatory II upgrade.

Today I am stuck at home with the flu and lots of time, so I transferred the page onto the new site.

http://asignobservatoryii.webs.com/tutorials.htm

[Keebert]

Baz, I just want to say a huge big THANK YOU for the tutorial. Before I read this thread it just dawned on me that setting the remote with 30s exposures and leaving the camera would give me lots of useable frames - I have no idea why I never thought of that before. So I did - but I think 30s with a 28mm at ISO 100 is probably a bit too long so next time I'll bump up the ISO and shorten the shutter.

Anyway, I'm quite surprised that even my cack-handed technique yielded something that wasn't completely useless.

[spotz04]

Originally Posted by A.S.I.G.N. Observatory

G'day folks, sorry the image stacking guide hasn't been available for a while. I shut down ASIGN Observatory a while ago and have been busy with the new ASIGN Observatory II upgrade.

Today I am stuck at home with the flu and lots of time, so I transferred the page onto the new site.

http://asignobservatoryii.webs.com/tutorials.htm

Thank you!
Get well soon.

[cmoy]

Thank you so much for sharing this Baz! Can't wait to give this a try on our camping trip this August

[cmoy]

DSS doesn't work on Mac's

[A.S.I.G.N. Observatory]

Originally Posted by Keebert

Baz, I just want to say a huge big THANK YOU for the tutorial. Before I read this thread it just dawned on me that setting the remote with 30s exposures and leaving the camera would give me lots of useable frames - I have no idea why I never thought of that before. So I did - but I think 30s with a 28mm at ISO 100 is probably a bit too long so next time I'll bump up the ISO and shorten the shutter.

Anyway, I'm quite surprised that even my cack-handed technique yielded something that wasn't completely useless.

Hey good to see you giving it a go! Yes, ISO 100 isn't sensitive enough for this and at 28mm, your stars will start to trail a fair bit at 30 seconds. If your camera isn't too noisy, like a lot of entry level DSLR's, then you can bump it up to ISO 1600 or so for maybe 15 or 20 seconds and see how that goes. It's all about experimentation with your particular camera, but yes, I would bump the ISO right up and try that.

Originally Posted by spotz04

Thank you!
Get well soon.

You're welcome mate and thanks for the well wishes. Four days cooped up in this small room with my head feeling like it is going to explode is sending me stir-crazy!! At least it gives me time to catch up on the forums!

Originally Posted by cmoy

Thank you so much for sharing this Baz! Can't wait to give this a try on our camping trip this August

My pleasure mate. Let us know how you go!

Baz.

[A.S.I.G.N. Observatory]

Originally Posted by Korak

Just a really noob question:
Last night finally clouds breaking little bit, so me and my son went to try out first star pics.
Lots of lightpollution coming, and didnt get stars razorsharp. OK thats not problem, more practising.

But question about when trying to do DSS. My RAW resolutions come as they suppose to be 5184 x 3456. Showing only 1336 x 3516.
http://imageshack.us/f/9/rawresolution.jpg/
Thou I can see original resolution on Adobe Lightroom. And when I changed photos to jpeg, and then just trying DSS with jpegs, and you can see photos as 5184 x 3456.
Any ideas what is wrong?

I was using Canon 550D, with ES-F 15-85 IS USM at 3.5F
Took 30 photos @ 20sec ... 10 darks and 10 Bias .. with ISO 1600 (next time trying 800)

And all I can do now, is because something with that DSS resolution change that just playing with 10 stacked jpegs



And here is one raw image 15mm wide same specs as earlier mentioned (worked with lightroom)
http://imageshack.us/f/26/thtitaivas1of1.jpg/

EDIT: Ok, I find the solution. I was using only 3.3.2 ... so 3.3.3 beta45 fix the things for resolution. Now I only wish I can be better photographer LOL

To get better results, get away from your light polluted area and out into the country. Also, try waiting until you can see the opposite side of the sky. Shooting outward towards the Orion arm of our galaxy is darker and not as structured as shooting inward towards the Sagittarius arm and the centre of our galaxy.

[A.S.I.G.N. Observatory]

Originally Posted by Jonathan.kichizi

Haha, that was almost a year.

Baz, did you finish your new observatory before the end of the year?

LOL! How time gets away! No, it's still not finished. New job, new baby and a myriad of other things getting in the way. Still working on it though!

Baz.

[AJX]

My first attempt : 21 - 30s frames


IMG_9732 by AJX_, on Flickr

[A.S.I.G.N. Observatory]

Originally Posted by AJX

My first attempt : 21 - 30s frames


IMG_9732 by AJX_, on Flickr

What were your camera settings here and what were you trying to achieve? With some more info I can help you optimise dramatically.