香港天文論壇

LT

51. M42 taken with 30cm newtonian 30cm F4 Newtonian + TV paracorr + LPS + 100Da @PTC in 2015 @ 1380mm F4.6 10x240s @iso800, autoguided with Vixen AXD mount Calibrated with darks only in DSS Wish having a chance to shoot it again with a FF cooled cmos camera but the chance is very slim due to the pri...

LT

50. Orion Taken with Vixen VSD100 + LPS + 5Da at Pak Kung Au in 2015 @380mm F3.8 23x180s @iso800, autoguided with Vixen GP2 photoguider in RA direction only Calibrated with darks only in DSS If calibration with a good flat, the result could be improved quite much I think. However, no chance to take ...

LT

5. Mirror cell for 10 inch Cassegrain

Rebuilding an OTA for my old 10" Cassegrain made by Parks, USA, for visual observation with bino viewer so that the weight can be reduced by quite a lot for mobile use.

: Mirror cell.jpg (374.74 KiB) 已瀏覽 110 次

LT

What a beauty to my eyes of this old stuff. So elegant and traditional she is.

Hope it can get reborn with high speed goto function this year.

: Atlux.jpg (915.26 KiB) 已瀏覽 138 次

LT

49. Horse head

Taken with Vixen ED80Sf + reducer + LPS + 40Da @PTC in 2014 @510mm F6.4
24x240s @iso1600, autoguided with Vixen GP2 photoguider in RA direction only

: HH_20141031_ED80Sf_40Da_iso1600_24x240s_PTC_PS.jpg (1.08 MiB) 已瀏覽 126 次

LT

4. 30cm F4 牛牛

若Vixen AXJ mount能背得起這只牛牛，那麼這只牛牛今年就可再投入服務。

: 300F4_OTA.jpg (785.4 KiB) 已瀏覽 235 次

LT

48. M8 Taken with Vixen film astrograph DED108SS + LPS + 40Da @PTC in 2011 @540mm F5 18x210s @iso800, autoguided with SXD mount Calibrated with darks only in DSS A little bit out of focus, autoguiding not so good........ Moreover, this old astrograph worked quite good to films, expecially for 67 for...

LT

3. 30cm F4牛牛蜘蛛架支架擰頭

為了要盡量減低30cm F4牛牛副鏡系統因應鏡筒指向不同角度所產生的移位，一年多前已做了一個重型蜘蛛架承托架。數日前再用殘餘物料(因缺乏材料)製作了這些擰頭將蜘蛛架安裝入托架內。

: spider_knob.jpg (248.5 KiB) 已瀏覽 286 次

: spider_cage.jpg (281.32 KiB) 已瀏覽 286 次

LT

47. M20 That should be my best image from PTC ever taken with DSLRs up to now. Taken with Vixen VC200L + reducer + LPS + 5Da @PTC in 2015 @1280mm F6.4 14x240s @iso800, autoguided with Vixen SX2 mount Calibrated with darks only in DSS This DSO had posted on this forum before. But this time it was re-...

LT

46. M17

Taken with VC200L + reducer + LPS + 5Da @PTC in 2015 in 2 nights @1280mm F6.4
4x240s @iso800 + 8x360s @iso500, autoguided with Vixen SX2 mount
Calibrated with darks only in DSS

Maybe that is the best image from PTC taken with DSLRs by me up to now.

: M17_2015_VC200L_5Da_stack_PTC.jpg (1.03 MiB) 已瀏覽 404 次

LT

LT

45. M27 with VC

Taken with Vixen VC200L + reducer + LPS + 100Da in PTC in 2015 @1280mm F6.4
9x240s @iso800, autoguided with Vixen SX2 mount
Calibrated with bias only in DSS

: M27_20150615_VC200L_100Da_iso800_9x240s_PTC.jpg (1009.22 KiB) 已瀏覽 771 次

LT

44. M13

Taken with VC200L + reducer + 100Da @PTC in 2015 @1280mm F6.4
3x120s @iso800, autoguided with Vixen SX2 mount
Calibrated with bias only in DSS

: M13_20150607_VC200L_100Da_iso800_3x120s_PTC.jpg (1.17 MiB) 已瀏覽 819 次

LT

LT

43. M46

Taken with VC200L + reducer + LPS + 100Da @PTC in 2013 @1280mm F6.4
6x240s @iso1600, autoguided with Vixen SX2 mount

: M46_20131204_VC200L_100Da_iso1600_6x240s_PTC.jpg (1.02 MiB) 已瀏覽 841 次

香港天文論壇

有 1996 筆資料符合您搜尋的條件

Re: DSO 遺照集 -- M42 taken with 30cm Newtonian

Re: DSO 遺照集 -- Orion taken in Lantau

Re: LT的 DIY 及 modified 天文器材配件相片集 -- Mirror cell for 10 inch Cassegrain

Atlux mount

Re: DSO 遺照集 -- Horse head from PTC with ED80Sf

30cm F4 牛牛

Re: DSO 遺照集 -- M8 from PTC with DED108SS

蜘蛛架支架擰頭

Re: DSO 遺照集 -- M20 taken with VC and 5Da

Re: DSO 遺照集 -- M17 taken with VC and 5Da

Re: 苦海愛恨

Re: DSO 遺照集 -- M27 with VC and 100Da

Re: DSO 遺照集 -- M13

Re: 中大科普中心天文台圓大修後記(續)

Re: DSO 遺照集 -- M46 from PTC