請高手指教：元宵節月亮

[tommychan]

小弟初嘗月球攝影，本身也不是攝影高手．用盡已知的方法仍無法照出一個清晰的月球．這晚用了多個小時，影了一百多張相片，選了覺得最好的一張．

我用的器材：Canon EOS 450D, EF 90-300mm 1:4.5-5.6
設定：　M Mode, 300mm, F9, 1/160, ISO 100, Mirror Lockup
技巧：用腳架固定好，分別用AF和不斷用MF對焦好，再用timer模式拍照，盡量把震盪減至最小．

請問我有什麼地方做漏或做錯了，還是器材不夠好，或是其他因素．望高手指點迷津．謝謝

[universe24]

基本上你应该做的都做足了，但月亮却好像还是模糊，这是不应该的。是否使用live view对焦？

[Wah!!]

如果是用 LiveView, 可以不用 mirror lockup, 用快門繩就得喇.
而且可以用 10x 看影像, 確保影像調至最清晰

[tommychan]

謝謝各位的回覆，我也相信是對焦問題．但無耐的是無論用live view或eye piece，AF或MF對焦也對不好．只好怪自己技術不好吧！請問怎樣用１０Ｘ看影像?我查看過相機內的設定也沒看見呢．

[CHYeung]

What focal length are you suing? Is it 300 mm (the logest end of your lens)?

If you are using a 300 mm camera lens, the image is just about 3 mm in diameter and this is it.

[Skyobs]

The photo just needs to be sharpened with software to bring out more details. The noise shown after sharpening may be due to under exposure or too much JPEG compression. (A better one can likely be produced from your original photo.)
Focus of the original was a bit out, but this is quite normal without using aids. Later if you try taking photo through telescope, you'll find good focusing is even more difficult. Nevermind, image processing is a common practice in astrophotography.

A similar moon photo taken with 30D auto-focus is posted for reference. Although its focus was also a bit out, sharpening can bring out reasonable detail.

Placing the edge of moon disk at view centre makes auto-focus easier. If you want sharp focus in the first place, then you have to do it manually with patience (through live view or iterative method). Alternatively, you can focus on a star before turning to the moon. Aid for focusing on star is such as
http://www.hkastroforum.net/viewtopic.p ... 143#129143