Telescope/Astrophotography Qs

Celestron make some excellent stuff! Although I Haven't used that scope I would suggest that if that review is by the same Ian Morrison that I know of then you should feel confident in what he says ...
 
A lot of Newtonian design scopes (which is what that one is) suffer from insufficient movement on the focus rack to be able to successfully mount a camera to it and achieve focus.

I don't know if that particular scope suffers from that problem, but it would be something worth checking before spending your hard earned on it if you want to try some astrophotography as well as just gazing at the stars.
 
Ive had a 10" Meade LX90...great scope...but even with that...you could not track in both axis and take a good photo...

To take good photos of deep sky you need a wedge and a good scope...

But having said that...lunar can be taken with most cameras...and prob the Saturn photo on that site...

Im in the midst of selling off all the remenents of my astro gear over on http://stargazerslounge.com/ ...I used this http://firstlightoptics.com/proddetail.php?prod=BaaderMicroStage along with a Skywatcher Skymax90...this type is sealed...so no dust problems...

more into my photography now...

I am going to post some of my gear on here as well...worth a look as it was a good we mobile setup...maybe give you some other ideas of whats out there...

I found that photos were either lower mid range...or very high range...the middle ground is not great..

But thats just me...

STEVIER
 
grum said:
Thanks folks - looks like some more research is needed.
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Probably! For Astro-photography you really should have an equatorial mount as this can not only track but can also deal with field rotation. An alt/az mount is okay for short duration imaging but will suffer rotation unless you use a wedge as Stevie (The big man) says! The thing to think about is how easy is the scope going to be to set-up and use? GoTo is excellent but you really need to be able to read the sky to use it at it's best!
 
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Splog said:
Probably! For Astro-photography you really should have an Alt/Az mount as this can not only track but can also deal with field rotation. An equatorial mount is okay for short duration imaging but will suffer rotation unless you use a wedge as Stevie (The big man) says!
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Actually you got that the wrong way round. An Alt/Az mount tracks on two axis - hence Alt/Az - and will suffer field rotation on long exposures. An equatorial mount tracks on one axis, the other being taken care of by the angle of the mount, avoiding the pitfall of field rotation.

If you use a wedge with an Alt/Az mount you can get round the problem of field rotation.
 
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Scarecrow said:
Actually you got that the wrong way round. An Alt/Az mount tracks on two axis - hence Alt/Az - and will suffer field rotation on long exposures. An equatorial mount tracks on one axis, the other being taken care of by the angle of the mount, avoiding the pitfall of field rotation.

If you use a wedge with an Alt/Az mount you can get round the problem of field rotation.
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Actually! ... Your correct :D .... Please excuse the lager, wine and Southern comfort! ... :lol:

Post now edited for accuracy :D
 
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