SingAstro

Thanks Kelvin for the nice photos.

I was equally impressed by the two 12.5 inch dobsonians and RLow's 6 inch wolf in sheep's coat. Next time I should bring my 10 inch f/6 dobsonian for its second light.

I think the true name of the mirror maker is "王珍煦“ (wang2 zhen1 xu1)。”苏鲁锭“(su1 lu3 ding4)is his avatar。

Yes, he is quite reputable on Chinese astronomy forums. I have seen very good plantary images taken by newtonians made from his mirror.

Well done.
I just managed to translate the review into Chinese.

The first set was sold. The second set (serial no. NrXP0172) has slightly lower specs (RMS 0.017 lamda, PTV 0.14 lamda) and one tiny nick on dew shield. I could offer it at $ 1750 only.

Thanks for looking and Happy new year!

Hi, Arief,
Sorry for my OT. You will be missed and I wish you a prosperous new start.

Repost.

Price for the mount plus tripod revised to $ 1000.

more details:

full length brass bushing in the mount body


shafts and knurled knob

More details for the mount
altitude disc

azimuth disc

I am selling a new version Astroslew "Inox" (altitude & azimuth disc, shafts are made of stainless steel) alt-azimuth mount with matching Gitzo 1500 tripod. Basically, the Astroslew "Inox" is the same design as its 2" and 3" cousins, however improvements were made: ...

The pair of tube rings with 12 inch ID were bought from Parallax Instruments last year for my newtonian telescope project. However at last I opt to a truss tube dobsonian so this pair of rings became redundant. They are still in mint condition with original box, the list price from Parallax is USD 2...