香港天文論壇

Thanks Bingsze & funoooo!
BTW, what is PTC? and in which topic in this forum I can see the 吹雞?
Regards,
Willis

I have no experience with this scope, and so you may need to wait for other user's opinion. My guess (may be wrong) is that the difference is not really that noticeable visually unless one really looks carefully for the difference. May be the effect on photography with larger CMOS is more significa...

I just get the news. The skywatcher EQ3pro is lauched. They said that is as accuracy as EQ6 :shock: . and very light weight. That will be great for traveling. (Please read my the other post. :lol:) It will be the other good choice. I have no idea where to sell it in Hong Kong. You need to check to ...

LX-75 is very commend EQ mount in Hong Kong, you will find a lot of support from the other starizer. HEQ5 is a little bit heavy, and less starizer to use in Hong Kong. However, the quality is better than LX-75, base on the other starizer comment. Now the HEQ5 is under promotion. It seems under HK$5...

Is the mount u used last time is HEQ5Pro? If yes, it is a very strong mount :D & very heavy :cry: Just from the photos, the HEQ5Pro is heavier than LXD75 mount. u know I am kind of new, I found many people use Celestron, say C6, C8, C.... I guess it must be good in some ways :wink: (At least the pe...

alget 寫:Off-topic:
http://forum.hkas.org.hk/viewthread.php ... a=page%3D1

Don't expect too much to the telescope......

Thanks for telling. This why I need to ask more.

What about the C8-GOTO? http://www.scopehouse.com/Telescope_4.htm But it must be very expensive. :( It has an equatorial mount, so it allows long exposure. The whole set should be just a bit over $10000. But due to the long focal length of C8, guiding is needed and I do not recommend this for begin...

1. Can NexStar 8-SE used for long exposure? 2. Is the NexStar 8-SE's optical tube is the same as C8 OTA? 3. Can other telescope, say a 80mm refractor, be mounted on NexStar's mount? Many thanks! 1. Long exposure requires equatorial mount, not fork mount used in NexStar series. 2. Yes 3. Don't know ...

1. Can NexStar 8-SE used for long exposure?
2. Is the NexStar 8-SE's optical tube is the same as C8 OTA?
3. Can other telescope, say a 80mm refractor, be mounted on NexStar's mount?
Many thanks!