Thinking of beefing up my 8SE setup...
Posted 18 June 2013 - 03:28 PM
To preface, here is my current setup and accessories:
OTA: NexStar 8SE
Mount: Alt/Az single fork
-24mm TeleVue Panoptic
-9mm Celestron X-Cel
-25 mm Celestron Plossl
-6.3 focal reducer
-Zhumell UHC filter
-The Backyard Astronomer's Guide (amazing book for beginners)
-Stock Cannon T3i
-Remote shutter button
My first question is this: Will an autoguider work with an alt/az mount to the point it is worth it? I've seen a couple of threads with mixed reviews, but would like to open this up for discussion here. I've had some moderate success with taking several short 15-20 second exposures, but I'd like to get some longer without having to go to a new mount (maybe for my next telescope).
My second question is around both viewing and AP. I was toying with trying eyepiece projection, but then I've started looking at the TeleVue Powermates and have been intrigued. I'd like to get higher magnification on planets and lunar features... thoughts on the Powermate vs. a Barlow, and which Powermate model (i.e. 2.5X, 4X, 5X)? And if I go the Powermate route, does it require a different t-ring?
Diagonals: Does upgrading from the stock diagonal provide any upside?
Posted 18 June 2013 - 04:45 PM
On the other hand, planetary imaging is now easier than ever. I have been having lots of fun with my NexImage 5 camera.
It has really small pixels so you won't need any Barlow. Your telescope can take awesome pictures of the Moon, Jupiter, Saturn, and Mars when it comes around next year. To see what is possible check out the
Solar System Imaging & Processing Forum
When you're over there you will notice that the best images are taken with a more expensive camera.
So you have two very nice cameras to choose from.
Posted 18 June 2013 - 06:22 PM
Posted 18 June 2013 - 07:01 PM
Posted 18 June 2013 - 08:18 PM
Posted 19 June 2013 - 09:27 AM
Thanks - yeah, I've learned the limits are typically less than 30 seconds of exposure time (tossing about half the subs in the end). I'm wondering if an autoguider would expand those limits to maybe a minute or two.
No. I do not think it would. I have toyed with the idea myself, but I really think that past 45 seconds or so you are stuck with field rotation. The autoguider cannot make the telescope track differently...it is still alt-az...just more accurate.
Posted 19 June 2013 - 11:46 PM