Before Andromeda | JuzaPhoto

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Galleries
Astrophotography

8.0 MEGAPIXEL

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Astrofotografia View gallery (8 photos)

Before Andromeda sent on August 04, 2013 (16:35) by Vesperwind. 7 comments, 1023 views.

, Posa B f/2.8, ISO 400, tripod.

Somma di 15 scatti da 40 secondi + 15 dark e 15 bias con deep sky stacker (saturazione al 20%). Per ottenere tale tempo di scatto e le stelle puntiformi ho usato l'astroinseguitore Ioptron Skytracker. Sono pronto a essere colpito (anzi lo spero) da numerosissime critiche (sono ben accette e anzi richieste), ma prima devo specificare che il cielo da cui ho ripreso non era scuro (mi trovavo nel giardino di una casa con alcune luci: queste non mi hanno permesso di alzare i tempi di ripresa sopra i 40 secondi, pena l'ottenere foto abbastanza bianchicce e arancioni). Per velocizzare il tutto e non avere problemi ho salvato gli scatti in L anziché in RAW. Utilizzando un obiettivo del genere (di gran qualità) mi fa un po' strano che si siano formati degli aloncini di aberrazione cromatica (blu) sopra alcune stelle (in questa foto li ho desaturati col colore selettivo), e non capisco se è normale o sono io che in questi mesi ho un po' compromesso la lente frontale con umidità e altri agenti atmosferici :( Focale utilizzata: 200mm. La foto è un crop.

View High Resolution 8.0 MP

1 person like it: Gaijin

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Vesperwind

sent on August 04, 2013 (16:43) | This comment has been automatically translated (show/hide original)

@ Beppe: Thank you for the previous comment! I managed to find a photoshop:-D so I deleted the other post and reloaded the photo (a little) better on fondocielo.

Beppe Reda

sent on August 05, 2013 (10:38) | This comment has been automatically translated (show/hide original)

Hello Vesper, too bad you have it removed to be able to see the difference between the two .... for me the first was better, that you pulled too and the spiral is not the same .. but this is just a personal opinion questionable .... These PP are tiring! :-D

Vesperwind

sent on August 05, 2013 (16:06) | This comment has been automatically translated (show/hide original)

It is not the effort, but the fact that they are still unable hahaha

Rui10

sent on August 11, 2013 (11:58) | This comment has been automatically translated (show/hide original)

Hello congratulations seems to be made with a telescope with a 70-200.
I can not just point out some guide or book to make similar images? I have a 300 f4 fixed, but I have no followers ... hello!

Beppe Reda

sent on August 11, 2013 (22:33) | This comment has been automatically translated (show/hide original)

Hello Rui10, unfortunately with a focal length of 300 mm f / 4 you will need to further lengthen the time of recovery and you will not be possible to photograph M31 without a astroinseguitore or an equatorial mount, the iOptron Startracker who used Vesperwind and I used I also can not support heavy weights, such as threshold limit is recommended not to exceed the focal length of 150mm! wow! and already the weight between reflex, goal, head and astroinseguitore approaches the maximum limit of 4 kg wow!

Rui10

sent on August 12, 2013 (20:25) | This comment has been automatically translated (show/hide original)

Thanks Beppe, then I could use the 70-200, but my f4 is not so bright ... and without tracker you can not do anything? even at the shortest focal maybe .. Hello!

Beppe Reda

sent on August 12, 2013 (23:25) | This comment has been automatically translated (show/hide original)

If you have the chance to double the ISO I think you can do it ;-)

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