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LT
週五 18 9月, 2020 19:50
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M56 (reprocessed)
回覆: 222
觀看: 47308

Re: DSO 遺照集 -- M56

Reprocessed without DBE in PI and saturation stretching in PS. Very minimum sharpening in PS as well. To me, it looks more natural and like the view at medium power through a 8" to 10" scope.
M56_20200916_6F5_100Da_ver2.jpg
M56_20200916_6F5_100Da_ver2.jpg (881.69 KiB) 已瀏覽 35 次
LT
週四 17 9月, 2020 22:55
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M56 (reprocessed)
回覆: 222
觀看: 47308

Re: DSO 遺照集 -- M56

90. M56 Taken with DIY 6" F5 Newtonian + TV paracorr + 100Da in YL last night @ ~860mm F5.75 15x90s @iso800, autoguided with Vixen AXJ mount Stacked in DSS with dark calibrated only Processed in PI and PS Originally wanted to try my cooled mono cmos camera setup with that newtonian. However, unstabl...
LT
週三 09 9月, 2020 19:51
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M56 (reprocessed)
回覆: 222
觀看: 47308

Re: DSO 遺照集 -- M27 (1600MM + 100Da)

89. M27 (1600MM + 100Da) L channel: taken with DIY 300mm F4 Newtonain + Vixen corrector PH + 1600MM in YL @1140mm F3.8, autoguided with Vixen AXJ mount Color data: taken with Vixen ED81SII + HD reducer kit + 100Da in Taiwan @495mm F6.1, autoguided with Vixen AP non-goto mount M27_L_100Da_iso1600_8x2...
LT
週二 08 9月, 2020 22:38
版面: 自製天文儀器 diy Astro Equipment
主題: LT的 DIY 及 modified 天文器材配件相片集 -- Non-rotatable helical focuser
回覆: 22
觀看: 2765

Re: LT的 DIY 及 modified 天文器材配件相片集 -- Non-rotatable helical focuser

9. Adapter for my cooled cmos camera set So as to set my cooled cmos camera parfocal to Vixen corrector PH with my 100Da, I had to tailor made this adapter. But very unfortunately, I didn't measure the actual thickness of the filter wheel with a T-2 threaded ring detached, just using the data on the...
LT
週一 31 8月, 2020 23:35
版面: 自製天文儀器 diy Astro Equipment
主題: LT的 DIY 及 modified 天文器材配件相片集 -- Non-rotatable helical focuser
回覆: 22
觀看: 2765

Re: LT的 DIY 及 modified 天文器材配件相片集 -- Non-rotatable helical focuser

8. Non-rotatable helical focuser for 6" Newtonian After test, image shift is very minimal (close to zero). The whole set (focuser + camera) is about 1.4kg, which may be a little too heavy to my DIY 6" F4 Newtonian. But it may only work well with DSLR or OSC. It should be quite dfficult to install a ...
LT
週日 30 8月, 2020 00:08
版面: 自製天文儀器 diy Astro Equipment
主題: LT的 DIY 及 modified 天文器材配件相片集 -- Non-rotatable helical focuser
回覆: 22
觀看: 2765

Re: LT的 DIY 及 modified 天文器材配件相片集 -- Brackets for 5cm guiding scope

7. Brackets for 5cm guiding scope

為完善和簡化旅攝時自動導星系統的安裝,設計和用廢料製作了這套導星鏡架。若有興趣也要一套相類似的,請PM與我聯絡。

Bracket_guiding.jpg
Bracket_guiding.jpg (431.51 KiB) 已瀏覽 115 次
LT
週四 27 8月, 2020 23:56
版面: 天文攝影 Astrophotography
主題: How does it look on cell phone's display
回覆: 1
觀看: 73

How does it look on cell phone's display

That is a re-processed version in PI and PS with no complicate skills applied. The contrast seems looking quite good on monitor with HDMI input. Will it look good too on cell phone's display? Taken with EF35mm F2 lens + 40Da in Coonabarabran in 2010 @F3.5 10x180s @iso800, unguided with GP mount 2010...
LT
週四 27 8月, 2020 00:18
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M56 (reprocessed)
回覆: 222
觀看: 47308

Re: DSO 遺照集 -- M71

88. M71 Taken with DIY 6" F4 newtonian + Vixen corrector PH + ASI1600-MM in YL yesterday @570mm F3.8 R=G=B=1x75s, autoguided with Vixen AP non-goto mount RGB combined in PI with any calibration Processed in PS A test shot to see if the new adapter made by me works well for coupling ASI1600 cam onto ...
LT
週一 24 8月, 2020 21:27
版面: 天文話題 Everything about Astronomy
主題: 相信很快會變成歷史廢物
回覆: 6
觀看: 213

相信很快會變成歷史廢物

Goto 大行其道,手機無人沒有,香港普天下還有多少人會用他來幫助找尋天體?
star-altas.jpg
star-altas.jpg (534.03 KiB) 已瀏覽 213 次
LT
週五 21 8月, 2020 19:51
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M56 (reprocessed)
回覆: 222
觀看: 47308

Re: DSO 遺照集 -- California taken with ED70SS

87. California

Taken with Vixen ED70SS + 1.0x flattener + LPS + 300Da @PTC in 2010 @400mm 5.6
13x300s @iso800, autoguided
California_20101228_ED70SS_LPS_350Da_iso800_13x300s_PTC.jpg
California_20101228_ED70SS_LPS_350Da_iso800_13x300s_PTC.jpg (993.25 KiB) 已瀏覽 254 次
LT
週二 18 8月, 2020 09:01
版面: 二手交易場 Second Hand Area
主題: Pentax XP eyepieces for sale
回覆: 0
觀看: 210

Pentax XP eyepieces for sale

Pentax XP 系列目鏡,鏡片組件內使用ED鏡片,提供極優質的目視(特別是月球、行呈)和目鏡投影放大攝影。菲林年代,便用67大底拍攝月面環形山,曰本高手們大多都用 此糸列目鏡以投影放大方式拍攝。

24.5mm (0.965") 尺寸規格,長放防潮箱內,外觀與鏡片狀況條件皆極優。
1. Pentax 3.8mm HK$1000.
2. Pentax 24mm HK$1400.
兩者一同購買, HK$2100,加送一個能用於1.25"規格的對焦座。有意者,歡迎 PM,回覆貼文或whatsApp 與我聯絡,謝謝。
Pentax_XP-eyepiece.jpg
Pentax_XP-eyepiece.jpg (564.8 KiB) 已瀏覽 210 次
LT
週一 10 8月, 2020 22:17
版面: 天文攝影 Astrophotography
主題: Gallery of comets taken in HK
回覆: 2
觀看: 128

Gallery of comets taken in HK

這麼多年來,用菲林或數碼感應器拍過的彗星,應該有十多顆或更多。未來日子將會減少拍攝,人生亦在減數中,所以便設立這個相集,為過往的拍攝做個記錄。用菲林拍攝的,要找一找,稍後才貼出來。

先以這個波波彗星作開始,亦以第一顆及第一次用DSLR拍攝的。

1. Holmes at 20071026

Taken with Vixen VMC260L + 350Da @iso400 in YL @3000mm F11.5
Unguided with Vixen Atlux mount
Holmes_20071026_VMC260L_F11-5_350Da_iso400_YL_group.jpg
Holmes_20071026_VMC260L_F11-5_350Da_iso400_YL_group.jpg (254.55 KiB) 已瀏覽 128 次
LT
週一 10 8月, 2020 00:41
版面: 二手交易場 Second Hand Area
主題: Used Vixen AXJ and brand new SXD2 mounts for sale
回覆: 3
觀看: 479

Re: Used Vixen AXJ and brand new SXD2 mounts for sale

phy16250 寫:
週日 09 8月, 2020 22:20
sxd2 賣左未 ?
Not yet
LT
週四 06 8月, 2020 22:52
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M56 (reprocessed)
回覆: 222
觀看: 47308

Re: DSO 遺照集 -- M65 taken with cooled CCD

86. M65

Taken with DIY 30cm F4 Newtonian + paracorr + Atik 383L+ mono cooled CCD @PTC in 2016 @1380mm F4.6
LRGB = 10x240s : R=G=B= 3x240s, autoguided with Vixen AXD mount
Stacked in DSS
Re-processed in PI and PS
M65_20160208_300F4_8300MM_LRGB_PTC.jpg
M65_20160208_300F4_8300MM_LRGB_PTC.jpg (351.84 KiB) 已瀏覽 413 次

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