Mono Eyepiece
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Mono Eyepiece
What are the focal lengths of a complete set of Mono eyepiece?
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
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: Mono Eyepiece
由 社長 » 2010-02-02, 00:20
TMB Mono : 4, 5, 6, 7, 8, 9, 10, 12, 14, 16mm
The TMB 25mm is Aspheric Orthoscope, not Mono
There is also a TMB 1.8x ED Barlow, rated as one of the best barlow.
The TMB 25mm is Aspheric Orthoscope, not Mono
There is also a TMB 1.8x ED Barlow, rated as one of the best barlow.
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
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
-
社長 - Site Admin
- 文章: 12686
- 註冊時間: 2010-02-01, 14:17
- 來自: 香港
Re: Mono Eyepiece
由 willis » 2010-02-02, 00:27
Why it is called Mono? What it mean by Aspheric Orthoscope? What is mean by Abbe-II Orthoscopic? Any special meanings? Or just a name, like G2000, Giodino etc.
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
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
-
willis - 全域版主
- 文章: 1526
- 註冊時間: 2010-02-01, 17:50
- 來自: HK
Re: Mono Eyepiece
由 社長 » 2010-02-02, 01:04
Thomas Back said, "The 25mm TMB/Zeiss is a 2-1 group with one air space, a total of three elements, and with one surface aspherized. It is the best 25mm eyepiece ever made, unless one wants a wider field of view."
Aspheric Orthoscope have one surface aspherized, which is critical to the performance.
A monocentric eyepiece is a three-element, one-group eyepiece in which every surface has the same center of curvature--hence the name.
Aspheric Orthoscope have one surface aspherized, which is critical to the performance.
A monocentric eyepiece is a three-element, one-group eyepiece in which every surface has the same center of curvature--hence the name.
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
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
-
社長 - Site Admin
- 文章: 12686
- 註冊時間: 2010-02-01, 14:17
- 來自: 香港
Re: Mono Eyepiece
由 社長 » 2010-02-03, 09:28
Lewis, 叫我花名社長或方Sir吧，那位比我年長的Willis至今還稱呼我為"方生"，感覺怪怪的 
40mm目鏡是用在哪台鏡上? 可能有點過長，引用Televue創辦人Al Nagler的看法，看深空天體要用一個最高而又可容下該天體的倍率，而看行星月面則要用最低而又能看到細節的倍率，而在香港這種光害背景下，其實看深空天體還是要提高一點倍率的。
40mm目鏡是用在哪台鏡上? 可能有點過長，引用Televue創辦人Al Nagler的看法，看深空天體要用一個最高而又可容下該天體的倍率，而看行星月面則要用最低而又能看到細節的倍率，而在香港這種光害背景下，其實看深空天體還是要提高一點倍率的。
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
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
-
社長 - Site Admin
- 文章: 12686
- 註冊時間: 2010-02-01, 14:17
- 來自: 香港
Re: Mono Eyepiece
由 willis » 2010-02-03, 11:03
社長 寫:Lewis, 叫我花名社長或方Sir吧，那位比我年長的Willis至今還稱呼我為"方生"，感覺怪怪的
Just get use to it! OK! I will call u Savio 弟弟
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
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
-
willis - 全域版主
- 文章: 1526
- 註冊時間: 2010-02-01, 17:50
- 來自: HK
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• 第 1 頁 (共 1 頁)
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