12-5-2011 CaK

Observing (Solar) - 白光、Ha、Cak等光譜觀測及拍攝

12-5-2011 CaK

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willis » 2011-05-12, 18:54

The bloody clouds running around this afternoon! I spend more than one hour to make just 2 shots! I found that when the Lunt CaK is on Equinox 120ED, it cannot reach focus. I need to use a 2.5X Powermate to make it works. As a result the effective focal length is 2250mm.

APM 80/480
Equinox 120ED
Lunt CaK module
EQ3Pro
Processed with Registax & PS
附加檔案
120ED_2.5X_DMK410003 11-05-12 15-06-10.jpg
Equinox 120ED, 2.5XPM, CaK
120ED_2.5X_DMK410003 11-05-12 15-06-10.jpg (438.48 KiB) 被瀏覽 5882 次
APM80-480_DMK410010 11-05-12 15-55-24.jpg
APM-LOMO 80/480, CaK
APM80-480_DMK410010 11-05-12 15-55-24.jpg (224.19 KiB) 被瀏覽 5882 次
Tak FS60C, APM-LOMO 80/480, APM-TMB 105/650, SW Black Diamond 120ED, Borg 125SD, SW 12" Dobs , Lunt LS35T, Lunt LS80T
TMB Super Mono 4mm, Pentax XO 2.5mm, Baader Planetarium 8-24mm, Nagler (2-4mm, 3-6mm, 13mm), Ethos (3.7mm, 6mm, 10mm), Explore Scientific 100º (14mm, 20mm)
DBK 21, DMK 21, DMK 41, DMK 51, ASI 178MC
Nikon D810A, Canon 5D II, Fujifilm X-T10
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willis
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Re: 12-5-2011 CaK

文章社長 » 2011-05-12, 21:31

可以像David一樣造個轉接環,用APM上那個羽毛調焦,一來合焦,二來可以採用電子調焦。
兩個天文台 - 白鷺湖天文台、西藏自動化天文觀測站
主鏡 - Officina Stellare 500 口徑f3.8 RiFast攝星儀、APM/TMB 254 f9 APO、SkyWatcher Dob 18、305 f8.5 牛頓鏡、Paramount ME 赤道儀
配件 - 2 full sets of Supermonocentrics、Baader Mark V Binoviewer、Ethos、Canon 5D Mark II Mod、FLI Proline 16803冷凍相機、Mercedes SUV
星河科研社 http://www.astro.hk 電郵 saviofong@astro.hk
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註冊時間: 2010-02-01, 14:17
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Re: 12-5-2011 CaK

文章David » 2011-05-13, 07:06

A little surgery was done on the Equinox 120 tube to make CaK reach focus. It allows the CaK 2 inch nose tube to go completely into the scope.
APM 80/480, SW 120mm Equinox, C8, Obsession 18"UC with Argo Navis & StellarCat
Lunt LS60T/CaK, LS152T with DSII
DMK31AF03, DMK21AF04, DBK21AF04
Mark V Binoviewer, Ethos (3.7mm, 6mm, 13mm), 19mm Panoptic, 5mm TMB mono
http://www.imsc.edu.hk/pages/astronomy
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David
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Re: 12-5-2011 CaK

文章willis » 2011-05-13, 09:44

David 寫:A little surgery was done on the Equinox 120 tube to make CaK reach focus. It allows the CaK 2 inch nose tube to go completely into the scope.


What surgery? Can I DIY?
Tak FS60C, APM-LOMO 80/480, APM-TMB 105/650, SW Black Diamond 120ED, Borg 125SD, SW 12" Dobs , Lunt LS35T, Lunt LS80T
TMB Super Mono 4mm, Pentax XO 2.5mm, Baader Planetarium 8-24mm, Nagler (2-4mm, 3-6mm, 13mm), Ethos (3.7mm, 6mm, 10mm), Explore Scientific 100º (14mm, 20mm)
DBK 21, DMK 21, DMK 41, DMK 51, ASI 178MC
Nikon D810A, Canon 5D II, Fujifilm X-T10
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willis
全域版主
 
文章: 1526
註冊時間: 2010-02-01, 17:50
來自: HK

Re: 12-5-2011 CaK

文章社長 » 2011-05-13, 11:19

調焦筒內端小於2”,我們用車床把那一截內徑車大了一點。
兩個天文台 - 白鷺湖天文台、西藏自動化天文觀測站
主鏡 - Officina Stellare 500 口徑f3.8 RiFast攝星儀、APM/TMB 254 f9 APO、SkyWatcher Dob 18、305 f8.5 牛頓鏡、Paramount ME 赤道儀
配件 - 2 full sets of Supermonocentrics、Baader Mark V Binoviewer、Ethos、Canon 5D Mark II Mod、FLI Proline 16803冷凍相機、Mercedes SUV
星河科研社 http://www.astro.hk 電郵 saviofong@astro.hk
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社長
Site Admin
 
文章: 12686
註冊時間: 2010-02-01, 14:17
來自: 香港


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