有 1087 筆資料符合您搜尋的條件

HK.Raymond.Tse
週五 05 9月, 2014 19:54
版面: 廠製儀器 Factory Equipment
主題: Sony ILCE-QX1 E-mount camera
回覆: 17
觀看: 13220

No idea yet.

Is there any T2 female to E mount bayonet ?
HK.Raymond.Tse
週四 04 9月, 2014 20:58
版面: 廠製儀器 Factory Equipment
主題: Sony ILCE-QX1 E-mount camera
回覆: 17
觀看: 13220

Great for Hyperstar imaging !
Even for daytime use.

C9.25 would become a superfast 540mm F2.3 lens, though slow manual focusing.

Raymond
HK.Raymond.Tse
週六 30 8月, 2014 01:19
版面: 談天說地 Chatting Square
主題: 廣厦千萬家之東九龍
回覆: 1
觀看: 1853

廣厦千萬家之東九龍

各位

不知道有沒有星友的家在片中看到?

https://www.youtube.com/watch?v=8vY7COb ... e=youtu.be

Raymond Tse
HK.Raymond.Tse
週五 29 8月, 2014 19:54
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 203mm巨型 ERF 訂制 - 改裝 8" PST白老鼠報名
回覆: 19
觀看: 6716

You can buy C8EdgeHD Ha scope instead. :D
HK.Raymond.Tse
週日 17 8月, 2014 23:45
版面: 談天說地 Chatting Square
主題: 太平山下
回覆: 1
觀看: 1612

太平山下

由山頂廣場拍下尖沙咀诲旁。

http://youtu.be/KMa9lTwSAPQ

Raymond Tse
HK.Raymond.Tse
週二 12 8月, 2014 00:41
版面: 談天說地 Chatting Square
主題: 只看不佔 - 中環商厦
回覆: 3
觀看: 2167

只看不佔 - 中環商厦

Dear all,

只看不佔 - 中環商厦

https://www.youtube.com/watch?v=kTC85SF ... e=youtu.be

Raymond Tse
HK.Raymond.Tse
週四 07 8月, 2014 00:18
版面: 振旺光電 ( 大眾天文 )
主題: 振旺光电 USB3.0摄像头ASI120S 正式上市啦
回覆: 31
觀看: 32140

Collecting ASI-120MM-S (thanks to Ah Wah) and installing its CD driver as well as SharpCap. Able to achieve 59-60 fps when the camera is connectd to the Icore 5 - 3.2GHz 16G Ram computer's USB3.0 plug. Appear to be nice and easy to use. No hot/dead pixel observed yet upon quick check. Hope to try it...
HK.Raymond.Tse
週二 05 8月, 2014 23:52
版面: 花鳥蟲魚 Natural World
主題: C925打啟德郵輪碼頭
回覆: 5
觀看: 4061

C925EdgeHD 打6.7公里遠的啟德郵輪碼頭:-

https://www.youtube.com/watch?v=YCLa9oZXyUM
HK.Raymond.Tse
週四 31 7月, 2014 18:11
版面: 振旺光電 ( 大眾天文 )
主題: 振旺光电 USB3.0摄像头ASI120S 正式上市啦
回覆: 31
觀看: 32140

報名:
Littleming USB3.0 ASI120MC-S 彩色頭 1 個

maverickroy 訂ASI120MM-S b/w camera + lrgb filter + filter holder

HK.Raymond.Tse one ASI120MM-S USB3.0 B/W camera.

sothirsty one USB3.0 ASI120MM-S黑白摄像头

Daniel ASI120MM-S b/w camera + lrgb filter
HK.Raymond.Tse
週四 31 7月, 2014 14:57
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 203mm巨型 ERF 訂制 - 改裝 8" PST白老鼠報名
回覆: 19
觀看: 6716

I guess you may make an adapter to fit the 203mm ERF to the C9.25 There is no flatness data for the substrate material, that's why I called joiners are 白老鼠. The material is red glass, it must have extra layers of coating to reach the target transmission curve. With the 33-36% CO, a full aperture of...
HK.Raymond.Tse
週四 31 7月, 2014 14:50
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 203mm巨型 ERF 訂制 - 改裝 8" PST白老鼠報名
回覆: 19
觀看: 6716

Baader 1/10 lambda flatness with dielectric IR coating would be the 1st choice despite its higher price tag. Daystar and Lunt have smaller aperture ERFs but their flatness is only 1/4. However, the max aperture of Baader is only 180mm. I have enquired from Baader but they have no intention to produc...
HK.Raymond.Tse
週三 30 7月, 2014 20:17
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: 203mm巨型 ERF 訂制 - 改裝 8" PST白老鼠報名
回覆: 19
觀看: 6716

Can I order larger aperture 9.25 or 9.5 inch for my C925 ?

Baader is 1/10 lambda optical flat. What is the flatness accuracy of Mainland glass ? What is the substrate material ? Dielectric reflective coating or just Schott dyed glass IR absorption type ?

Raymond
HK.Raymond.Tse
週一 28 7月, 2014 01:14
版面: 振旺光電 ( 大眾天文 )
主題: 振旺光电 USB3.0摄像头ASI120S 正式上市啦
回覆: 31
觀看: 32140

Dear Wah,

1 B/W camera.

Raymond Tse
HK.Raymond.Tse
週四 24 7月, 2014 22:55
版面: 太陽觀測和攝影 Solar Observation & Photography
主題: C8 EdgeHD Ha (solar & DSO) scope released
回覆: 0
觀看: 1200

C8 EdgeHD Ha (solar & DSO) scope released

Dear all, Be prepared to move up larger aperture to 8inch plus for Ha solar and DSO Ha imaging. Yes, dual purpose scope. A genius method to di-electrically coat the front corrector to achieve big ERF at 1/4 lambda. At present the biggest ERFs are 180mm by Baader D-ERF (1/10 lamda) and up to rarely m...
HK.Raymond.Tse
週一 21 7月, 2014 21:24
版面: 振旺光電 ( 大眾天文 )
主題: 振旺光电 USB3.0摄像头ASI120S 正式上市啦
回覆: 31
觀看: 32140

Wah!! 寫:彩色版內置IR cut濾鏡, 黑白版內置AR濾鏡
Deah Wah,

Would newton rings be obvious due to the internal reflection between CMOS glass and the AR filter ?

I already notice some obvious newton rings in using ASI-130MM with Lunt 152T/Ha.

Raymond

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