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  1. Galleries
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  3. Astrophotography
  4. » M51 Whirpool Galaxy

 
M51 Whirpool Galaxy...

ASTROFOTO

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M51 Whirpool Galaxy sent on March 22, 2021 (0:19) by MaxG.. 5 comments, 409 views. [retina]

con Nikon TC-20E IIPosa B f/8.0, tripod.

(5h 48min totali) 10 +15 +15 +15 Dark TS Optics 203/800 Filtro M&S glow correttore di coma RCC-1 Moltiplicatore TC20E II; DeepSkyStacker PS LR Montature SW Az-EQ6 GT Omegon 80/400 SynGuider II



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user219927
avatar
sent on March 22, 2021 (14:46) | This comment has been automatically translated (show/hide original)

Does it look to me or is it slightly out of focus? What telescope did you use?

avatarjunior
sent on March 23, 2021 (8:07) | This comment has been automatically translated (show/hide original)

I focus with bathinov on the last star of the alignment and everything was ok.. but he may have moved something later. I tend to exclude it because all sessions show the same softness.
In my opinion the newton TS 203 f4 does not go very well with the 2x nikon focal multiplier which is already much better than the Barlow acre that I have => now I am trying with the smooth telescope..
Max property

user219927
avatar
sent on March 23, 2021 (9:17) | This comment has been automatically translated (show/hide original)

I hate multipliers precisely because of the loss of sharpness. Especially in case of "delicate" photography such as the astro. Personalemte I think a good cutout is better. Notice the stars as they are minged and have a bluish side edge.
Other question, do you use Pixinsight?

avatarjunior
sent on March 24, 2021 (17:15) | This comment has been automatically translated (show/hide original)

Now I have to process about thirty poses without multiplier and moon apart apparently look cleaner although I will have to croppare more.
Thist try with a good 2" barlow from a friend (cable car); mine 1.25 acre is just fine to throw your eyes into it unpretentiously!
No, for now only deep space stacker PS LR
Max

user219927
avatar
sent on March 25, 2021 (6:29) | This comment has been automatically translated (show/hide original)

Pixinsight also has a very good new Preprocessing and has a gear n more than DSS in terms of sharpness. Test!


RCE Foto

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