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LT
週五 24 1月, 2020 09:19
版面: 天文攝影 Astrophotography
主題: Reprocessed Milky Way taken in NZ in 2008
回覆: 0
觀看: 12

Reprocessed Milky Way taken in NZ in 2008

EF85mm + 350Da, unguided with GP mount
exposure of each subs = 60s @iso400
RHO_350Da_ABE_PCC_PS.jpg
RHO_350Da_ABE_PCC_PS.jpg (1.18 MiB) 已瀏覽 12 次
LT
週三 22 1月, 2020 23:04
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

Re: DSO 遺照集 -- M97 posted on Jan 22nd

8. M53

Taken with DIY 6" F5 Newtonian + MPCC + 300Da in TMS, HK in 2009 @750mm F5
10x240 @iso400, autoguided with Vixen SXD mount
M53_6F5_TMS.jpg
M53_6F5_TMS.jpg (572.52 KiB) 已瀏覽 51 次
LT
週三 22 1月, 2020 09:32
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

Re: DSO 遺照集 -- Pac Man posted on Jan 21st

7. M97

Taken with DIY 6" F5 + MPCC + 300Da from TMS in 2009 @750mm F5
Autoguided with Vixen SXD mount
M97_crop.jpg
M97_crop.jpg (129.99 KiB) 已瀏覽 88 次
LT
週二 21 1月, 2020 12:22
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

Re: DSO 遺照集 -- Leo Triplet posted on Jan 19th

6. NGC281

Taken with DIY 6" F5 Newtonian + MPCC + 300Da in PTC in 2010 @750mm F5
13x180s @iso800, autoguided with Vixen SXD mount

SN ratio very low. Moreover, no dark, no bias, no flat calibrated in DSS. So, deleted too.
NGC281_300Da_13x180s_iso800.jpg
NGC281_300Da_13x180s_iso800.jpg (729.43 KiB) 已瀏覽 126 次
LT
週一 20 1月, 2020 14:01
版面: 二手交易場 Second Hand Area
主題: Vixen Polarie for sale
回覆: 0
觀看: 95

Vixen Polarie for sale

除舊迎新 Vixen star tracker,全套放售價HK$3200

含Polarie star tracker, 原廠 第一代 Polarie 極軸鏡, 工廠製極軸調校座,DIY EQ 平衡 kit 及 約1kg 重小型銅製平衡鍾 (made by me)。Star tracker body 有少量使用痕跡,功能100%運作正常。

有意者請PM、回貼或whatsApp本人,謝謝。
Polarie-set_IMG_0459.jpg
Polarie-set_IMG_0459.jpg (752.62 KiB) 已瀏覽 95 次
LT
週日 19 1月, 2020 14:23
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

Re: DSO 遺照集 -- M94 posted at 20200118

5. Leo Triplet Taken with Vixen R200SS (20cm F4) Newtonian + MPCC3 + Atik 383L mono in PTC in 2017 @800mm F4 LRGB = 11x360s : R=G=B=4x240s @binning 2x2, combined in PI Autoguided with Vixen SX2 mount So many donuts!! I think no one would like them on the image. So, deleted. Leo-triplet_LRGB.jpg
LT
週六 18 1月, 2020 08:22
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

Re: DSO 遺照集 -- M1

4. M94 Taken with Vixen R200SS (20cm F4) Newtonian + MPCC3 + Atik 383L mono in PTC @800mm F4 LRGB = 10x240s : R=G=B=4x240s @binning 2x2, combined in PI Autoguided with Vixen SX2 mount It is quite challenging to shoot galaxies in Hong Kong due to the night sky is so light and air polluted. M94_LRGB_c...
LT
週五 17 1月, 2020 13:19
版面: 二手交易場 Second Hand Area
主題: Vixen SD103S OTA for sale (RESERVED)
回覆: 0
觀看: 148

Vixen SD103S OTA for sale (RESERVED)

因擁有的望遠鏡實在太多,到海外旅攝又只能帶ED81S或FL55SS(Baby VSD)。現時在本地亦多數用牛頓反射鏡,所以這支SD103S已很少用了。曰後在本地若再用折射鏡攝星,又有可能會 upgarde上130mm或甚至150mm口徑的。其實這支折射鏡質素很好,但與其閒置少用,倒不與讓她改嫁他人吧。 103mm F7.7 apo 折射鏡 (使用一片SD玻璃,焦距795mm),OTA重約3.6kg 100% 日本製造,鏡筒,鏡面狀態條件極好,放售價 HK$7200. (全新價 $10780.), 包 tube rings及 未使用過 illumated 7x50 star finder 及 2...
LT
週四 16 1月, 2020 22:22
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

Re: DSO 遺照集

3. M1

Taken with DIY 30cm F4 Newtonian + paracorr + Atik 383L+ mono in PTC
LRGB combined in PI
Autoguided with Vixen AXD mount

(當見到星點好似雞蛋般大,就知道seeing有幾好........差呢!!!)
M1_LRGB_crop.jpg
M1_LRGB_crop.jpg (643.13 KiB) 已瀏覽 344 次
LT
週四 16 1月, 2020 22:16
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

Re: DSO 遺照集

2. M104

Taken with Vixen VC200L + reducer + 1600MM in PTC in 2018 @1280mm F6.4
R:G:B = 1x240s : 1x240s : 1x240s
No dark, no bias, no flat calibrated
M104_RGB_crop.jpg
M104_RGB_crop.jpg (796.43 KiB) 已瀏覽 345 次
LT
週四 16 1月, 2020 22:13
版面: 天文攝影 Astrophotography
主題: DSO 遺照集 -- M53 , 2nd post today
回覆: 14
觀看: 349

DSO 遺照集 -- M53 , 2nd post today

這個相簿集的名明看起來是不是有點嚇人?但又是事實呀。 話說這麼多年來拍下了不少數據,但很多都塵藏於硬碟肉未曾處理過。有些是較好的,但也有不少的質素是不佳的。踏入2020年後,我在業餘天文攝影上將會有轉變,所以便下定決心 ==> 除舊,重新上路。 但又覺得就這樣將質素不佳的 data 直接地從硬碟中 "永久地" 刪除,好像對記錄了下來的 data 有點不尊重,所以想在他們 "灰飛煙沒" 前,來一個簡簡單單的處理,露一露面,輯成一個相集,方便瞻仰遺容。 1. NGC5139 Color data l: taken with EF400mm F5.6L + 40Da in Australia @F5...
LT
週二 14 1月, 2020 21:56
版面: 天文攝影 Astrophotography
主題: M104
回覆: 3
觀看: 180

M104

Again, give it a play before it will be deleted from HDD soon.

Taken with Vixen VC200L + reducer + 1600MM in PTC in 2018 @1280mm F6.4
R:G:B = 1x240s : 1x240s : 1x240s
No dark, no bias, no flat calibrated

Hope I can take it again with my 30cm Newtonian soon in PTC this year.
M104_RGB_crop.jpg
M104_RGB_crop.jpg (796.43 KiB) 已瀏覽 180 次
LT
週五 10 1月, 2020 22:53
版面: 天文攝影 Astrophotography
主題: M27 from PTC last year
回覆: 2
觀看: 117

M27 from PTC last year

This was taken in PTC before my trip down south to guarantee everything worked without any fault. Taken with Vixen ED81S + HR flattener + 1600MM @624mm F7.9 R=G=B=6x300s with only bias calibrated in PI Autoguided with Vixen AP mount Reprocessed again with layer mask and then the data will be deleted...
LT
週五 10 1月, 2020 10:44
版面: 自製天文儀器 diy Astro Equipment
主題: 大螺絲對焦器
回覆: 2
觀看: 80

大螺絲對焦器

為了令6" F4牛牛更可能到世界各地跟Vixen AP mount一同開開眼界,特別地多牠做了一隻大螺絲對焦器。可惜長度有點長,攝影時合不到焦,故此去年寶島行沒牠份兒。因不想焦平面太遠,只好為牠再做一個較矮身的,相信今年應可南下一同滅火。
DIY-focuser.jpg
DIY-focuser.jpg (343.08 KiB) 已瀏覽 80 次
LT
週三 08 1月, 2020 23:49
版面: 天文攝影 Astrophotography
主題: Comparison between mask and no mask used
回覆: 3
觀看: 173

Re: Comparison between mask and no mask used

Try to see the difference if mask is applied.
M15_mask-no-mask.jpg
M15_mask-no-mask.jpg (1.01 MiB) 已瀏覽 122 次

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