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  1. Galleries
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  4. » Under the sky of Otranto, 4:00 am, the moon waned. U

 
Under the sky of Otranto, 4:00 am, the moon waned. U...

Minitrack LX

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Under the sky of Otranto, 4:00 am, the moon waned. U sent on September 07, 2014 (18:12) by AngeloPerronePhoto. 8 comments, 729 views.

, Posa B f/3.2, ISO 1000, tripod. Otranto, Italy.

Sotto il cielo di Otranto, ore 4.00, luna tramontata. Una spettacolare nebulosa M42 nella costellazione di Orione si mostrava ai nostri occhi... Canon 5D Mark III - Canon 70-200 2.8L @ 200mm - Minitrack LX calibrato a dovere!!! (stiamo a 2,260 kg di sopportazione) - Dati Exif: Diaframma 3.2 - 60" di esposizione - ISO 1000. 10 pose da 60" + 11 Dark frame + 11 Bias/Offset Elaborazione DeepSkyStacker - Photoshop CC. Purtroppo c'era tanto vento e ho dovuto fare da scudo per evitare micromosso Che ne pensate? :)



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avatarsenior
sent on September 07, 2014 (18:28) | This comment has been automatically translated (show/hide original)

I think it is time that I mounted a Baader, you noticed that you have also taken the Horsehead and Flame nebula? ;-) M42 is overexposed, you should close more and give less ISO and maybe increase the poses ... Among some time before M42 will rise and you'll have more time to increase in number of frames;-) All in all I'd say you've done a good test-)

avatarjunior
sent on September 07, 2014 (23:41) | This comment has been automatically translated (show/hide original)

Thank you Beppe pass :) I noticed the overexposure of nubolosa and also digital noise ... in fact the next time I try to use more low type iso 800 However as the first test I am very satisfied :) sky Otranto is always a pleasure :)

avatarsenior
sent on September 08, 2014 (6:35) | This comment has been automatically translated (show/hide original)

The noise is content I would say, if I were you riproverei to resume decentralizing the M42 and to let in the Horsehead and Flame as they are in the left margin in the picture, perhaps bringing the focal length to 180mm for most field ... . would try to integrate even more for both ilnucleo of M42 and for the rest, and all f / 4.0, then in pp would try to bring out the red ones because they do not have any filter on the EOS. Have you ever thought about doing a test with 200mm + 2X? ;-)

avatarjunior
sent on September 08, 2014 (12:50) | This comment has been automatically translated (show/hide original)

Beppe Hello and thanks for the advice you give me. I was thinking of multiplying the 70-200 with kenko 1.4x multiplier to get a 280mm f / 4. Now the limit is the Minitrack LX, the only tracker in my possession. In these shots the Minitrack has arrived safely at 60 seconds of exposure to 200mm but after calibrated properly and dozens of shots. In addition, the wind is no friend of the Minitrack and every shake-is lurking :(
I was thinking then to "strengthen" the stand by adding an aluminum plate between the feet of the Manfrotto and connect a pin with weights to increase stability.
A 280mm (we are after all limits to the Minitrack) I should try to pursue and do in this case many more poses, at least fifty. And I also thought of doing many different poses to ISO using the DSS Media entropic (High Dynamic, 30poses at 800 iso, put 10 to 1600 and placed 5 to iso 3200) and have an image "HDR".

avatarsenior
sent on September 09, 2014 (1:39) | This comment has been automatically translated (show/hide original)

My advice is purely academics who are not even able to experiment with my photos, it's a year that I am following the web as well as in this forum, shooting techniques ... in the end I realized that what matters most is the 'integration apart from the goodness of the reflex that some have a cooling system, the more details you get the best frames resume. Regarding the tripod and your minitrack, I can say that on the one hand you have the maneuverability, you have another of the limitations of the time does not allow you to go over the threshold of 60 "and this is a big limitation bought ... iOptron StarTracker it on purpose to make sure andre over 4 minutes of installation, even if I had to deal with the tripod that has held up very well then the Canon 70-200 (XPROB with Manfrotto 055 ball head 498RC2 which is now out of production) . depends on you and theyour interest in this discipline, I personally have not yet had the opportunity to test my new iOptron Smarteq Pro with GOTO2 Nova then that is a small equatorial mount includes solid steel tubular tripod that can support well APO refractor from a small 80 mm with relative guider ... photography does not require wide-field optical drives, to a maximum 200mm but in this case it takes an autoguider must be able to easily exceed 10 minutes without having trouble tracking. Regarding the shooting mediated is an excellent technique for rendering dynamic, but I do not know to what extent it works in a wide field astrophotography, the only thing to do is experiment, experiment ever. ;-)

avatarjunior
sent on September 09, 2014 (8:40) | This comment has been automatically translated (show/hide original)

It in fact I'm still experimenting? for now I try to squeeze the most out minitrack do anyway and practice at the level of digital processing. Then as soon as possible will try to take a proper setting that allows me to work from 300mm up with at least 5-6 minutes of exposure. Both take place from where I know it is completely dark and you see everything beautifully :)

avatarsenior
sent on September 22, 2014 (13:17) | This comment has been automatically translated (show/hide original)

In this field, I feel like a fish out of water ... I can not but admire the picture for me ... very impressive;-);-)

avatarjunior
sent on September 22, 2014 (14:30) | This comment has been automatically translated (show/hide original)

Thank you Mr eko?


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