H-a太陽full disk (25/8/05)
- universe24
- 中子星
- 文章: 1930
- 註冊時間: 週五 11 7月, 2003 20:11
- 來自: Malaysia
H-a太陽full disk (25/8/05)
今天好好天,讓我拍攝到這張比較好的太陽影像。發現到如果天空有一點點雲或有水氣都會引向拍攝效果,要拍攝張真正好的H-alpha太陽真的很難...
- 附加檔案
-
- DSCN9688 small.jpg (175.27 KiB) 已瀏覽 20467 次
-
- 紅巨星
- 文章: 498
- 註冊時間: 週二 07 12月, 2004 12:11
-
- 紅巨星
- 文章: 498
- 註冊時間: 週二 07 12月, 2004 12:11
-
- 紅巨星
- 文章: 498
- 註冊時間: 週二 07 12月, 2004 12:11
-
- 紅巨星
- 文章: 498
- 註冊時間: 週二 07 12月, 2004 12:11
It employ standard PAL DV format 720x576 pixel;72 sq micron per pixel which means extra sensitivity. DV format is a lossless standard sometimes also used for broadcasting and commercial movie making.Astrocat 寫:Ameobahydra, what's the pixel size, s/n ratio and the dynamic range?
any uncompressed raw digital video stream output?
http://www.dvinfo.net/canon/articles/article84.php
-
- 紅巨星
- 文章: 498
- 註冊時間: 週二 07 12月, 2004 12:11
Movie itself is in DV format and captured through firewire connection of camera to AVI file format with original resolution; still without compression. Compression is usually done in adobe premiere by selecting appropriate codec for output.Wah! 寫:可以無失真輸出, 但個影片本身係乜野格式? 有無壓縮?
可以拍幾耐時間呀?
如果要睇幾個鐘頭變化, 個容量需求, 或者後期處理時間都好多喎.
The camera has function to select capturing in user defined interval (say five minutes or an hour) and for a user definable period of shot for each interval (say 30 frames or 15 frames). Using this feature and if seeing permits, it can record granule motion which is in order of minutes.
The Mini-DV cassette can capture lossless video for 60 minutes.
-
- 紅巨星
- 文章: 498
- 註冊時間: 週二 07 12月, 2004 12:11
誰在線上
正在瀏覽這個版面的使用者:沒有註冊會員 和 32 位訪客