Solar Film
Solar Film
Tan14 有兩種 density 3.8 及 5.0. 有什麼分別?
The density 3.8 film is only suitable for high magnification imaging. In my experience, the exposure time is about 1/1000 second at f/20, ISO 100 for the density 3.8 film.
I used the density 5.0 film for last year's solar eclipse, correct exposure during the partial phase is in the range of 1/250 to 1/500 second at ~f/12, ISO setting 200.
I used the density 5.0 film for last year's solar eclipse, correct exposure during the partial phase is in the range of 1/250 to 1/500 second at ~f/12, ISO setting 200.
誰在線上
正在瀏覽這個版面的使用者:沒有註冊會員 和 26 位訪客