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Skywatcher Evoguide 50ED for Astrophotography?

astrophotography dso refractor dslr
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#1 Naraya

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Posted 24 August 2019 - 06:26 AM

Hey guys, i'm looking for a very versatile refractor and I want your opinions on the Skywatcher Evoguide 50ED.

 

i'm quite enticed that i could use it for WIDE-field views (even wider than the St-80!), astrophotography, guiding, and even just day-to-day photography.

 

But i'm still kinda worried about the astrophotography part since it's gonna be 50% its use. I plan to use an H-alpha filter with it but i'm not sure if using a 50mm refractor is a very good idea (star bloating, laughable amount of light gathering, etc). 

 

I think it has a lot going for it but let me know what you think.

 

 

 

 

 

(note: although my st-80 is (good enough) for observing, it has insane amounts of coma that really limits what i can do with it.

(spent a lot of time fixing it, nothing really works).

So the evoguide will "replace" it in a way.



#2 Tapio

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Posted 24 August 2019 - 06:57 AM

I don't remember seeing AP images taken with Evoguide.
Have played with the idea too.
But it needs a field flattener too, although it has better color correction than st80.
And it needs better mount attachment than guide mount.

#3 Naraya

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Posted 24 August 2019 - 07:19 AM

I don't remember seeing AP images taken with Evoguide.
Have played with the idea too.
But it needs a field flattener too, although it has better color correction than st80.
And it needs better mount attachment than guide mount.

I'm quite fine with field curvature (can easily crop it out too). I also have a neighbour who could help drill a mounting hole for the star adventurer so i don't see any issues.

 

Were there any problems you learnt when playing with the AP option?



#4 Tapio

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Posted 24 August 2019 - 08:04 AM

Sorry if you misunderstood me.
I have just played with idea of purchasing Evoguide for AP.
But maybe if I buy it will be this:
https://www.teleskop...--RED-Line.html
or this :
https://www.teleskop...ture-F-4-5.html

#5 skyward_eyes

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Posted 24 August 2019 - 08:20 AM

Starizona has made a dedicated field flattener for the Evoguide 50ED just for this reason. It flattened the field across an APS-C sized sensor.

https://starizona.co...r-evoguide-50ed

#6 Auburn80

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Posted 24 August 2019 - 09:44 AM

Caution. They clearly state one cannot use a diagonal. Appears to be fine with straight thru, guiding and AP.


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