頗大的太陽併圖 (20090514)

[Wah!!]

XR 直上 100mm 濾鏡啦!
50mm真係放唔得大, 睇唔到針狀物架~

[XR250]

100mm??
你估我係富貴熊咩！

[David]

Got the filter from HK dealer.

My (not school's) double stack LS75F should be coming soon (One has arrived). Depending on ease of use, performance, etc, I may sell my LS60T and/or matched LS50F. But it will take me some time to test everything.

[David]

XR 直上 100mm 濾鏡啦!
50mm真係放唔得大, 睇唔到針狀物架~

Wah! is really in love with spicules. That's all he wants from a solar filter...

[Wah!!]

哈哈哈~ 因為我個 PST 對針狀物無能為力, 所以咪想人地唔好步我後塵囉

[XR250]

請問要睇針狀物，其實主要係要靠bandwidth，定係口徑？

[David]

請問要睇針狀物，其實主要係要靠bandwidth，定係口徑？

Aperture. In cloudynights, I have heard people saying that when the aperture reaches some 'magic value' which is around 50-60mm, the spicules can be seen.

You can see spicules in 50mm, but they are much more obvious in 60mm, and very needle-like in 100mm!

[Wah!!]

XR 唔使諗咁多啦, 刷一張 credit card 搞掂個 100mm 濾鏡吧~~~

[XR250]

XR 唔使諗咁多啦, 刷一張 credit card 搞掂個 100mm 濾鏡吧~~~

我諗攪掂我多過攪掂LS100F

樓上David話可能會放LS50F 或 LS60T，我諗都係等下，睇下有沒有機會買2nd hand 玩下。

[Wah!!]

自從上次因為幾分鐘的差異而bid唔到個sm90, David 講左話俾我排隊排前面先

[XR250]

自從上次因為幾分鐘的差異而bid唔到個sm90, David 講左話俾我排隊排前面先

SM90, 你真係有$$$$$$$$$$$

[Wah!!]

打錯字, 打錯字!
係 SM60~

[XR250]

原來係sm60，其實我見2nd hand SM60都唔平。

你係唔係學識睇風水？？？？

[Wah!!]

你話平唔平?
http://www.hkastroforum.net/viewtopic.php?t=12079

[XR250]

學subaru話齋，原來輸比大王架跑車。