香港天文論壇

Dear MMYFLIN

Pls reserve item 3 (6 points laser ponter rings) for me.

Raymond Tse
03-04-2018

Dear Tommy, Thanks for arranging such seiminar & gathering right after HKSM's afternoon talk. Early bird for me, 1 person. Q to Celestron : Why it takes so long for C9.25 EdgeHD to develop a dedicated 0.7X reducer and whether such reducer will be developed at all and if yes how long ? Raymond Tse 28...

香港星之子

Dear Angus,

What mount do you use at Li Jiang ? 10 Micron without guiding for how long for each sub-frame ? Able to hold TEC180 payload ?

Raymond Tse
05-02-2018

Good capture & processing

Very nice .

The site appears to be good enough.

Raymond Tse

Designing and adding a flip-up cover for C925HD. An add-on adapter with flip cover have been placed on top of C925HD. Then, the perimeter of the flip cover is surrounded by rubber guard to make it more moisture/air tight. Next step is to connect the motor for remote operation to flip-up and down the...

先試下对不对到焦先啦，及是否太暗。開蓋個stepper motor 又不知夠唔夠力挣得起。

Dear all,

Preparing for high power solar watching at F30 with 7,050mm focal length, only after the rain stops and when seeing supports.

Raymond Tse

Enroll

Raymond_TSE

Excellant Moon Image.

Raymond Tse

Bigger C11 binoscopes.

This means dual C925 binoscopes is possible.

Binoscope could be as big as 2 C8.

Wonderful twisted diagonals in dual set.

I have seen online twisted diagonals mounted to Borg 80/100.

But good to see it fitting Borg 125 as well.

Where to buy such twisted diagonals ?

Raymond Tse