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  1. Galleries
  2. »
  3. Astrophotography
  4. » Galaxies M81 and M82

 
Galaxies M81 and M82...

Astrofotografia I

View gallery (21 photos)

Galaxies M81 and M82 sent on July 02, 2012 (14:48) by Astrogallery. 8 comments, 1648 views.

ISO 800, tripod.

Canon 450D (mod. Baader)+ Newton GSO 150/750 su HEQ5 PRO; Somma di 20 scatti da 300 sec a 800ISO + 5 dark + 10 flat.Allineamento e calibrazione con il software DSS (deep sky stacker) e elaborazione con Phostoshop CS6. Qui a risoluzione maggiore http://astrogallery.altervista.org/galaxy/m81-m82.jpg.html





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avatarjunior
sent on July 02, 2012 (15:47) | This comment has been automatically translated (show/hide original)

Bravo, nice indeed. Your body is "changed" but, I ask, for this photo filter replacement, it is irrelevant, right? Which site (in terms of light pollution) you took the shots? Hello

avatarsenior
sent on July 02, 2012 (19:27) | This comment has been automatically translated (show/hide original)

I see a little 'blue spots in the sky background and perhaps the contrast in general is a bit' pushed, however, the two galaxies are very nice, it is understood that the material collected is of high quality. I would try to rework it a bit 'softer. It may be that you will have already made various versions and this is the one that you like best, I sometimes even months after we return and refer back all over again!

George Astrogallery maybe will give you more details, but I can assure you that having the Baader filter or no change things radically. Perhaps in this photo has fewer than in the images of nebulae red, but certainly not irrelevant.

hello!

Clear

avatarjunior
sent on July 02, 2012 (20:26) | This comment has been automatically translated (show/hide original)

Dear Chiara, I'm not hard to imagine ..... but I have not the courage to change the filter to the D700 ...... Thanks cmq.ciao

avatarsenior
sent on July 02, 2012 (21:08) | This comment has been automatically translated (show/hide original)

well, look at George, if you're starting with the camera in astronomy, my advice is not to change the filter for now. I did just recently and I had a lot of trouble, even if I did a professional. Suffice it to say that I was three months without reflex. Then it is true that the last Filters allow a natural white balance more easily than with a little 'more Vecchiotti, but if you want to use the camera for the day you must always take in raw, do the white balance manually and especially do it again every time you change the light. It is also inevitable that in disassembling and reassembling the filter a little 'dust steps, just a speck that is placed behind the filter and photo day you're screwed, you always have to clone the speck! I the end I chose to keep the 500D only for astronomy and other pictures I took a second camera body, but it was aa difficult choice and long-meditated (and especially I had to wait to have a little 'nest egg!).

hello!

Clear

avatarjunior
sent on July 02, 2012 (22:04) | This comment has been automatically translated (show/hide original)

LO know, I know ..... I'll wait to find another decent body in terms of noise and be modifying ..... you later.
hello

avatarjunior
sent on July 05, 2012 (14:39) | This comment has been automatically translated (show/hide original)

Giorgio48 Hello, thanks for the comment!
As has been mentioned Chiara change is an important step especially for the acquisition of signal-rich regions Halfa (hydrogen). The Cigar galaxy for example, one on the right in the photo, in the central part of the filaments has nubulosi of Halfa (noticeable with exposures greater than average focal and longer).
I also like Clare I relied on a professional editing, but in addition to the expectation of more than 2-3 months, I too have had the problem of dust on the sensor. In astrophotography it can be solved easily by flat, but in the daytime with small apertures is very annoying. In practice farewell landscapes in my case.
You have to consider that no change can take pictures of the globular clusters, open clusters, the moon, and many galaxieslthough some planetary nebula. So there are a lot of objects. Consider that on my site astrogallery.altervista.org/ (except the nebula rosette, horse's head and the latter) photos were all taken with the 450d original. So you can enjoy a lot without modification.

@ Astro_kiara
Thanks for the comment to you too!
The contrast you're right it is perhaps a bit 'pushed. I happen to completely redo processing of photos in months. I will try to do more processing soft just have time! Thanks for the advice!

Hello,
John

avatarsupporter
sent on August 08, 2013 (21:01) | This comment has been automatically translated (show/hide original)

Very nice, indeed, beautiful! Compliments.

avatarjunior
sent on August 29, 2013 (10:53) | This comment has been automatically translated (show/hide original)

Thank you!


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