TheSkySearchers

This is just two hours with the Nikon d5300 @ iso 200 on M81, M82 and the Garland Galaxy. I've been sooooooo busy that I've had no time to do anything other than work recently; I've not had a day off in 40 days. This month should be a bit easier so I'll have a few days off, thank God! Anyway, I hope you all like it

Hi G!
That is really an amazing image for just two hours!
Hopefully you will get more time on it soon.
Very nice processing!

Hi Arry. Well this was a well spent 2 hours. This image has excellent contrast and is well framed. M81 ( NGC 3031 and Bode's Galaxy) has very nice spiral arms details, M82 (NGC 3034 and Cigar Galaxy) shows it's central fracture, and Garland Galaxy (NGC 3077) is quite visible too. Thanks for sharing this great work with us on here Arry and I hope that you can get a break from work sometime soon.

Juno16 wrote: ↑Tue Mar 07, 2023 5:21 pm Hi G!
That is really an amazing image for just two hours!
Hopefully you will get more time on it soon.
Very nice processing!

I hope so too. I'll be back on a regular schedule this month so with good fortune and clear skies I can add to it or go for something else. Many thanks, Jim.

Makuser wrote: ↑Tue Mar 07, 2023 9:51 pm Hi Arry. Well this was a well spent 2 hours. This image has excellent contrast and is well framed. M81 ( NGC 3031 and Bode's Galaxy) has very nice spiral arms details, M82 (NGC 3034 and Cigar Galaxy) shows it's central fracture, and Garland Galaxy (NGC 3077) is quite visible too. Thanks for sharing this great work with us on here Arry and I hope that you can get a break from work sometime soon.

Thank you, Marshall.

Great shot Arry. I am curious though why you limited yourself to ISO200? Surely the D5300 can handle ISO400-800? Especially if you bother with calibration frames.

very very nice take , thx .

AstroBee wrote: ↑Wed Mar 08, 2023 12:54 am Great shot Arry. I am curious though why you limited yourself to ISO200? Surely the D5300 can handle ISO400-800? Especially if you bother with calibration frames.

Hi Greg, thanks for the question. In terms of dynamic range and according to this site http://dslr-astrophotography.com/iso-va ... n-cameras/ the sweet spot is ISO200 for the D5300. However, I do use ISO400 and 800 with good results too, especially with calibration files Many thanks

messier 111 wrote: ↑Wed Mar 08, 2023 1:22 am very very nice take , thx .

Thanks, Jean-Yves

Gmetric wrote: ↑Wed Mar 08, 2023 2:34 am

AstroBee wrote: ↑Wed Mar 08, 2023 12:54 am Great shot Arry. I am curious though why you limited yourself to ISO200? Surely the D5300 can handle ISO400-800? Especially if you bother with calibration frames.

Hi Greg, thanks for the question. In terms of dynamic range and according to this site http://dslr-astrophotography.com/iso-va ... n-cameras/ the sweet spot is ISO200 for the D5300. However, I do use ISO400 and 800 with good results too, especially with calibration files Many thanks

Your calibration frames MUST be shot at the same ISO as your LIGHTS.

Very nice capture Arry

Wonderful image! Great work!

AstroBee wrote: ↑Wed Mar 08, 2023 2:39 am

Gmetric wrote: ↑Wed Mar 08, 2023 2:34 am

AstroBee wrote: ↑Wed Mar 08, 2023 12:54 am Great shot Arry. I am curious though why you limited yourself to ISO200? Surely the D5300 can handle ISO400-800? Especially if you bother with calibration frames.

Hi Greg, thanks for the question. In terms of dynamic range and according to this site http://dslr-astrophotography.com/iso-va ... n-cameras/ the sweet spot is ISO200 for the D5300. However, I do use ISO400 and 800 with good results too, especially with calibration files Many thanks

Your calibration frames MUST be shot at the same ISO as your LIGHTS.

I know, and of course, when doing calibration frames I do them at the same iso, temperature and exposure time as the lights. Except of course for bias which are done with the same iso and if possible temperature but at the fastest shutter speed as we are only establishing the dark fixed patter noise. And dark flats which should be done at the same exposure as the flats. But thanks for pointing that out. Much appreciated.

Mac wrote: ↑Wed Mar 08, 2023 3:00 am Very nice capture Arry

Thank you, Steve

MariusD69 wrote: ↑Wed Mar 08, 2023 6:15 am Wonderful image! Great work!

Thank you, Marius

Great image Arry.

Work always seems to interfere with our hobbies, but do the best you can and enjoy your free times

Butterfly Maiden wrote: ↑Wed Mar 08, 2023 7:07 am Great image Arry.

Work always seems to interfere with our hobbies, but do the best you can and enjoy your free times

It sure does and I will, and…thank you, Vanessa

Thats a really excellent image. Especially at only 2 hours. You have lovely coulour and structure in both Galaxies. Nicely done.

Jockinireland wrote: ↑Wed Mar 08, 2023 8:59 am Thats a really excellent image. Especially at only 2 hours. You have lovely coulour and structure in both Galaxies. Nicely done.

Thank you, David. Much appreciated.