www.astrocafe.hk

I just bought this adaptor from Ap Liu Street. It enables the use of Nikon G lenses, lenses without aperture ring, on Canon DSLRs. Guess how much it costs?

HK$100?

sorry, what is Nikon G Lens? I am too lazy to search the Internet...

社長 寫:HK$100?

sorry, what is Nikon G Lens? I am too lazy to search the Internet...

The new Nikon lenses are G lenses. Traditionally, all the Nikon lenses have aperture rings. One can control the aperture, the focal ratio, by rotating the ring on the lens. It seems that Nikon followed Canon that the aperture can only be controlled via the camera body. This change makes the new G lenses cannot be used on the old manual models, say FM2 & F4 etc, even the lenses can be plugged into the camera. The same thing happen for the case of using G lenses on Canon camera. Even the G lenses can be plugged into the Canon camera. There is no way to control the aperture. The only aperture can be used is the smaller aperture of the G lens, say F22! The new adaptor has a lever which can adjust the aperture of the G lens.
The new adaptor was first made by http://www.16-9.net/nikon_g/
It has been launched for sometime & I think it is too expensive, over US$200! I tell myself that if China can make this adaptor, the price will be much lower. Recently, I was told that China made it & it is available in Ap Liu Street. When I ask the Ap Liu guy for one, he said it is $480!!! I was shocked and ask him to give me the adaptor for a look. I found that it was a good clone of the original adaptor. So I comfort myself that it is much cheaper than that of the original one…

在攝星用途上，我最不喜歡Canon鏡的另一原因是對焦設計。上次用180/3.5拍星野，配了魚骨板也搞了很久，

viewtopic.php?f=17&t=551#p5348

viewtopic.php?f=17&t=549#p5316

Willis 手上有沒有Nikon 180/2.8鏡頭？

社長 寫:在攝星用途上，我最不喜歡Canon鏡的另一原因是對焦設計。上次用180/3.5拍星野，配了魚骨板也搞了很久，

viewtopic.php?f=17&t=551#p5348

viewtopic.php?f=17&t=549#p5316

Willis 手上有沒有Nikon 180/2.8鏡頭？

Sorry! I don't.

需要像目鏡一樣，來個鏡頭召集區？
viewtopic.php?f=8&t=997

David那些300/2.8、600/4從沒現身的

反正我們今年都組織西藏攝星團，若天文台及一切順利，全部放上Paramount都可以。

我現於西藏存放了一套EQ5 Pro、一配HEQ5 Pro，稍後或會發一台Sky Watcher 16" DOB GOTO過去作目視。

社長 寫:需要像目鏡一樣，來個鏡頭召集區？
viewtopic.php?f=8&t=997

David那些300/2.8、600/4從沒現身的

反正我們今年都組織西藏攝星團，若天文台及一切順利，全部放上Paramount都可以。

我現於西藏存放了一套EQ5 Pro、一配HEQ5 Pro，稍後或會發一台Sky Watcher 16" DOB GOTO過去作目視。

Support, I have Nikon 180 F 2.8

180/2.8ED, AIS, or other version?

社長 寫:需要像目鏡一樣，來個鏡頭召集區？
viewtopic.php?f=8&t=997

David那些300/2.8、600/4從沒現身的

反正我們今年都組織西藏攝星團，若天文台及一切順利，全部放上Paramount都可以。

我現於西藏存放了一套EQ5 Pro、一配HEQ5 Pro，稍後或會發一台Sky Watcher 16" DOB GOTO過去作目視。

變焦的接受嗎？ 我有Nikon的70-200mm f/2.8G

社長 寫:180/2.8ED, AIS, or other version?

ED180 f 2.8 D & old version ED AF 300 F 4

StevenTam 寫:

社長 寫:需要像目鏡一樣，來個鏡頭召集區？
viewtopic.php?f=8&t=997

David那些300/2.8、600/4從沒現身的

反正我們今年都組織西藏攝星團，若天文台及一切順利，全部放上Paramount都可以。

我現於西藏存放了一套EQ5 Pro、一配HEQ5 Pro，稍後或會發一台Sky Watcher 16" DOB GOTO過去作目視。

變焦的接受嗎？ 我有Nikon的70-200mm f/2.8G

why not.

有機會試無妨，不過若在西藏拍攝的話，不要高估自己的體力，每晚拍好一兩個目標已足夠。之前的拍攝，我設好快門後便到房間休息上網，自動導星器為我代勞。

benben88 寫:ED180 f 2.8 D & old version ED AF 300 F 4

你的經驗是ED180/2.8 D是否會比老款180/2.8ED AIS銳些？

我那枝105/2.5 AIS，就算用TP2415拍攝也銳得無可挑剔，但在數碼機下的色散便很明顯。

It is sharp but the CA is not that great ....