Need help on eyepieces

Junming-jm · Post by **Junming-jm** » Mon Oct 04, 2010 4:57 pm

Err so must I switch back to the uti scope and if so what eyepiece to get ?

cloud_cover · Post by **cloud_cover** » Mon Oct 04, 2010 5:32 pm

Junming - why not buy a decent second hand optic? At least that way when you sell it again you don't lose much at all.
The other way is to nicely ask some of the more experienced ones here to borrow a scope thy're not using much and look through it to experience the seeing. At least then you get an idea what you will or will not see through the scope

Don't forget about the mount also; the telescope is no good without a good mount, all you will see are jiggles and squiggles. Mounts can be costly too, especially if you want to do photography as those need more stability.
Keep an eye out in the buy/sell section, occasionally good deals or cheap deals pop up

Gary · Post by **Gary** » Mon Oct 04, 2010 7:15 pm

Hi Junming. So you are the one who made my last few seconds of my youtube video looks more interesting. Thanks!

Regarding the pointless part, speaking from my own limited experience, I feel it is not. You forget the *value* you gain from full hands-on experience on your 1st second hand scope. Let's say I sell my 1st scope mak 127 at $50 lower than the amt I bought it for. On paper, I lost $50. But in real terms, I gain way more than that - i have internalised (not just understand base on theory) the importance of a good mount, aperture vs portability, fov vs magnification, how to check optics for defects....etc. This gain allowed me to make an easy decision to buy my second 2nd-hand scope C8. Had it not been for the experience gained with my first scope, I would be absolutely clueless what offer is consider a good deal and what is not.

Thanks for giving me the idea to blog about this in the future!

Junming-jm · Post by **Junming-jm** » Mon Oct 04, 2010 8:20 pm

Gary thanks for creating question markssss on top of my head . Err what you mean by making your video interesting?

Gary · Post by **Gary** » Mon Oct 04, 2010 9:12 pm

Forget the video. The main thing is do you understand my point about the non-video part?

Junming-jm · Post by **Junming-jm** » Mon Oct 04, 2010 9:25 pm

Ya it worth the money for experience . But I think my experience is free cos I think I will be using taka sky 90 belong to my club . So it ok if I break it
Haha just kidding , dont wanna sleep in a grave.

Gary · Post by **Gary** » Mon Oct 04, 2010 9:29 pm

Good for you! Taka sky 90 is a good scope to learn the ropes.

Junming-jm · Post by **Junming-jm** » Mon Oct 04, 2010 9:33 pm

But now a day keep cloudy and christ borrowed the sky 90 so cant use.
Btw is the exit pupil as important as real fov and what is the suitable real fov for dso

Gary · Post by **Gary** » Mon Oct 04, 2010 9:35 pm

@Junming: Check this out:

A Pupil Primer by Alan M. MacRobert
http://www.skyandtelescope.com/howto/ba ... 04201.html

Post by **acc** » Mon Oct 04, 2010 9:44 pm

I think better to drop the idea of the Tak for it gives very little bang for the buck... Suggest you try a 8" SCT on an alt-az mount instead. But most importantly, follow the other's advice to observe through a few more scopes first before deciding on what (if any) to purchase.