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SkyGuider Pro or StarAdventurer Pro?

beginner dslr equipment
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#1 waikee

waikee

    Sputnik

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Posted 25 March 2019 - 03:40 AM

Sorry for the dumb question, I am really new to astronomical and still learning

I‘ve had enough with the cg-3 w motor driver ,it is so inaccurate to track the star.

I hv done some searching in these two type of star tracker.

Since I need them to be portable and be able to carry my c90mak with a Canon 600D, Skyguider and StarAdventurer seems to be a solution for me. But what's the mainly difference between them? 



#2 Hesiod

Hesiod

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Posted 26 March 2019 - 01:39 PM

Absolutely none of them!

To take unguided pictures at 1250mm f.l. you need a bloody good mount, especially because it is a f/15 telescope.

 

Those devices are designed to take moderately short exposures at very low focals with very fast lenses: your f/15 is 5 stop slower than a f/2.8 lens, meaning that, to get the same amount of signal you would attain in the f/2.8 lens, have to get subs 2^5 longer...

To use the 90/1250 you would need a larger mount (at least eq3/cg4, but bigger is better) and the equipment to guide (manual, or, better, auto), but it is not a really good setup to begin with, and in general term not a good setup overall.

 

If want to start with AP, I'd suggest to use your camera with standard lenses instead (conventional approach), or stick with you have and try a sort of lucky-imaging with heaps of very short, high ISO, subs




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