香港天文論壇

If those top management people of space musemum are not star lovers or astronomy fans, they will NOT have any passion to keep the space museum up-to-date. There is no latest astronomy news, but Chinese rocket & space ship only. They like to make money by boardcast 3D movie & selling astronomy produ...

Chanlunlun 寫:

wtyu21 寫: 反正館裡面的太空書店已經變成玩具店.............

If they sell Takahashi, Celestron, SBIG, Luminera, AstroPhysics............. then it's a real space museum.

A very very good idea !


再講，裡面雖然也有望遠鏡，但只是玩具級別，一點點可以入門級別看星星的也沒有，堂堂太空館實在丟臉啦。

金魚

很美
[愛的轟炸]


金魚

LS60T是一支好鏡。



金魚

littleming 寫:

kingyo 寫:想問下你個Ha filter係2吋定係1.25吋 ?

係咪Baader?

Thz.

金魚

宇隆12nm

對不起，我找到了..
是2寸.
THX.

金魚

littleming 寫:

kingyo 寫:想問下你個Ha filter係2吋定係1.25吋 ?

係咪Baader?

Thz.

金魚

宇隆12nm

2寸?

金魚

Good Shoot.

想問下你個Ha filter係2吋定係1.25吋 ?

係咪Baader?

Thz.

金魚

嘩...
巨Mount配小鏡。靚！

謝謝Wong Sir幫我跟進了這一個赤道儀，現在感覺不錯。

赤道儀整體表現上不錯：
1) 腳架紮實
2) 手控方便
3) 摩打低速夠力、高速夠快
4) 負重很大

另外我想問一問Wong Sir能否在網上找到這產品的支援?
1) 電子說明(pdf manual, 想了解多一點)
2) 韌體更新(firmware update, 因方便日後更新)
3) 技術性資料(Specification, 方便日後改裝及升級用)

我已嘗試找尋晶華的網頁、Bressier的網頁及Explore Scientific的網頁也找不到。

再次謝謝Wong Sir的幫忙。

金魚

Thanks for your suggestion. This is also my thought.

Coz the skywatcher AZ mount doesn't track so well, the sun is moving fast. Therefore I only grab 5 sec out of a 20 sec video clip. If I can track the sun for a bit longer, I can sure stack for more.

KamYu

Oh wrong info.
thx for pointing it out.
frame : 15 fps. x 5 sec ~ stacked 75 frames.
total exposure: (1/900) x 75 frames = 0.0833 sec
gain: 900
gamma: 70

金魚

似有棧街燈係你前面?
你睇下有無其他光源係你附近。
無嘅話，內反射機會都大。
你用咩鏡?
鏡筒內壁係咪好反光?

金魚