Since we're posting astro stuff...

[pyry]

Here's my feeble attempts in the field of noise, hot pixels and amp glow.

Milkyway rising
http://pyry.smugmug.com/photos/209734580_ybLhj-L-1.jpg

300D, sigma 10-20 @ 10mm, I forget the rest. 4 or 5 2-3 minute frames stacked and dark frame treatment.


The Swan's tail nebulosity
http://pyry.smugmug.com/photos/209734648_3JjTf-L-1.jpg

300D, Canon 100-400 @ around 135mm. Stacked from some amount of images.


Bands of light and shadow
http://pyry.smugmug.com/photos/209734668_jT9mr-L-1.jpg

300D, Canon 17-55 @ 17mm - I think. Stacked from 9 2-4 minute frames and dark frames subtracted. These are so old now I can't remember :scratch

All shot piggyback on a basic equatorial tracking mount.

Here's hoping the clouds break and I get to show that 300D the sky again - it's IR-modded now so the sky should look a bit more exciting with it :D

[DaddyO]

Nice work. :thumb Have seen your 1st shot and thought it well done.
North American Nebula in Cygnus. Sweet.

[pyry]

Nice work. :thumb Have seen your 1st shot and thought it well done.
North American Nebula in Cygnus. Sweet.

Yeah, I may have let the first out once or twice... :D
NGC7000 indeed, there's a little bit of the Butterfly nebula sneaking into the frame on the right as well.

Thanks!

[Skippy]

Here's my feeble attempts in the field of noise, hot pixels and amp glow.

Milkyway rising
300D, sigma 10-20 @ 10mm, I forget the rest. 4 or 5 2-3 minute frames stacked and dark frame treatment.

The Swan's tail nebulosity
300D, Canon 100-400 @ around 135mm. Stacked from some amount of images.

Bands of light and shadow
300D, Canon 17-55 @ 17mm - I think. Stacked from 9 2-4 minute frames and dark frames subtracted. These are so old now I can't remember :scratch

All shot piggyback on a basic equatorial tracking mount.

Here's hoping the clouds break and I get to show that 300D the sky again - it's IR-modded now so the sky should look a bit more exciting with it :D

I take my hat off to you ASTRO guys :nod

The second and third shots are very impressive, the movement of the trees is distracting in the first one but the lights in the sky look beautiful.

I know these types of images are not easy to produce,
you've done a great job with these Pyry :clap :clap ... Skippy :D
.

[pyry]

I take my hat off to you ASTRO guys :nod

The second and third shots are very impressive, the movement of the trees is distracting in the first one but the lights in the sky look beautiful.

I know these types of images are not easy to produce,
you've done a great job with these Pyry :clap :clap ... Skippy :D
.

Thanks a lot Skippy :D

These images are probably not as difficult to do as you think, it just takes time - you go out to get one image, you come in with pieces of it in your pocket and you put it together. There's time in one night to expose one image properly or maybe two if the night is long.

About the first picture, I do remember forgetting to stop the tracking mount and take one more exposure of just the trees as the clouds covered the sky, but then again it was windy and with exposures in the minutes...