Light, portable 102 refractor for portamount
#1
Posted 28 December 2012 - 05:18 PM
#2
Posted 28 December 2012 - 05:49 PM
Jon
#3
Posted 28 December 2012 - 07:28 PM
#4
Posted 28 December 2012 - 07:39 PM
#5
Posted 28 December 2012 - 07:59 PM
Larry Carlino
#6
Posted 28 December 2012 - 08:23 PM
#7
Posted 29 December 2012 - 04:57 AM
The Lunt 102 ED is about $750 at Anacortes...
I would be willing to bet your money that the Portamount mated with the 2 inch SS legged CG-5 tripod would solidify things to the point where your 100mm f/9 was plenty stable. Since you have a CG-5, you could try it, it might take some simple fabrication...
Jon
#8
Posted 29 December 2012 - 06:50 AM
Jon [/quote]
He said he has the StarGuy so I would think the tripod (HAL130-SXG)would be sturdy enough.
#9
Posted 29 December 2012 - 12:28 PM
#10
Posted 29 December 2012 - 04:14 PM
Much better than a Megrez90 that was my
Previous G&G
#11
Posted 29 December 2012 - 05:53 PM
#13
Posted 30 December 2012 - 12:05 AM
He said he has the StarGuy soI would think thetripod (HAL130-SXG)would be sturdy enough
According to the original post, the mount is not stable enough. In my experience with the Portamount, that points to the tripod. I once mounted my Portamount head on my old Houston-Fearless tripod and it was rocksolid with my NP-101... My gut feeling is that the CG-5 tripod would be similar.
Jon
#14
Posted 30 December 2012 - 08:23 AM
Fits on my Synscan AZ goto mount perfectly and is
Pretty stable.
Also fits on my SE mount and with an extension tube in
The diagonal, can reach zenith OK.
#15
Posted 30 December 2012 - 05:32 PM
#16
Posted 31 December 2012 - 12:29 AM
#17
Posted 31 December 2012 - 09:19 AM
The HAL 130 tripod is rated for 30 to 35 lbs. I tried my 102 F/9.8 with the "Mannys Bracket" and it was unusable. I took off the "Mannys Bbracket" and it was a lot better. I tightened the bolt on the azimuth stem and it was even better. In my opinion it is the mount itself and not the tripod. When I put my SLT mount on the HAL 130 with the 102mm F/9.8 scope it has less, much less vibrations than the porta mount on it with the same scope. My shorter scopes, ST120, C6-SCT amd C6-N which weigh more that the 102 F/9.8 are much more stable.He said he has the StarGuy soI would think thetripod (HAL130-SXG)would be sturdy enough
According to the original post, the mount is not stable enough. In my experience with the Portamount, that points to the tripod. I once mounted my Portamount head on my old Houston-Fearless tripod and it was rocksolid with my NP-101... My gut feeling is that the CG-5 tripod would be similar.
Jon
#18
Posted 31 December 2012 - 08:28 PM
#19
Posted 31 December 2012 - 09:42 PM
#20
Posted 01 January 2013 - 08:14 AM
#21
Posted 01 January 2013 - 10:45 AM
1 too much CA
2 too big for my SynscanAZ mount.
The CA has to be seen to be believed!!
#22
Posted 01 January 2013 - 03:18 PM
With the dew shield about 25" , without dew sheild about 19". This doesn't include diagonal.About how long is your ST120, I suppose if I get a refractor with similar dimensions, I would be set...
#23
Posted 01 January 2013 - 03:34 PM
I fail to understand why people make these kind of statements. The stated purpose for it is for deep sky objects. It is not meant for planets, moon or bright stars. It is a wide field scope. If I buy an F/15 scope then complain that it is a terrible wide feild scope on here people would laugh at me. I don't mean to be harsh but it is what it is! Also, isn't the Synscan basically the same as the SLT? The SLT mount can handle quite a bit on a heavy duty tripod!Had a ST120 and let it go for two reasons;
1 too much CA
2 too big for my SynscanAZ mount.
The CA has to be seen to be believed!!
#24
Posted 02 January 2013 - 10:03 AM
This is because I had read a few reviews that said the CA in a ST120 was "overstated" and that if it did prove troublesome was "easily addressed" with a fringe-killer, or similar.I fail to understand why people make these kind of statements. The stated purpose for it is for deep sky objects. It is not meant for planets, moon or bright stars. It is a wide field scope. If I buy an F/15 scope then complain that it is a terrible wide feild scope on here people would laugh at me. I don't mean to be harsh but it is what it is! Also, isn't the Synscan basically the same as the SLT? The SLT mount can handle quite a bit on a heavy duty tripod!Had a ST120 and let it go for two reasons;
1 too much CA
2 too big for my SynscanAZ mount.
The CA has to be seen to be believed!!
Well it wasn't- in both cases.
Also the mount struggled with it, particularly in altitude.
What I learnt from this is that telescopes and one's views of them (and through them) are very personal. What works for one may well be unacceptable to another.
#25
Posted 02 January 2013 - 10:33 AM