Timeline for Why does my Canon 700D take so long processing when I take a long exposure?
Current License: CC BY-SA 3.0
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| May 3, 2017 at 15:38 | history | edited | Michael C | CC BY-SA 3.0 |
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| May 3, 2017 at 10:27 | comment | added | Zenit | Die you mean "turn on" or "turn off"? (1st sentence). | |
| May 1, 2017 at 14:21 | comment | added | Michael C | As the sensor temperature increases over the course of the session, pattern noise will increase. If the session is long enough, then dark frames should be made at periodic intervals and applied to the frames preceding each sample. A lot of more detailed information is contained in many of the questions/answers that result in searching this site for the term "dark frame subtraction." If one wants to use multiple samples of dark frames to eliminate the random portion of the result, a discrete set should be taken at each stage. | |
| May 1, 2017 at 10:15 | comment | added | Toby Speight | Would it help to capture two dark frames, before and after the shooting session, and to use an average of the two? Or will the pattern noise be expected to be constant over this timescale? | |
| Apr 30, 2017 at 12:03 | comment | added | Chris Russell | Thanks for your advice, you have been more than helpful 👍 | |
| Apr 30, 2017 at 8:01 | history | edited | Michael C | CC BY-SA 3.0 |
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| Apr 30, 2017 at 7:56 | history | answered | Michael C | CC BY-SA 3.0 |