Timeline for How to take great night shots with a subject in the foreground and a cityscape behind?
Current License: CC BY-SA 2.5
8 events
| when toggle format | what | by | license | comment | |
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| Dec 6, 2016 at 12:16 | comment | added | Michael C | @philw sensor gain amplifies both noise and the signal. The reason higher gain produces more noise is because it is usually used to amplify lower signal. | |
| Oct 16, 2010 at 14:03 | comment | added | philw | ISO is a measure of sensor gain. The higher it is, the more amplification you're giving to the various types of sensor noise. For one body, one EV, you will see less noise for a lower ISO. This is easy to see for yourself and the physics is straight forward. | |
| Oct 12, 2010 at 11:49 | vote | accept | rkg | ||
| Oct 12, 2010 at 9:57 | comment | added | Matt Grum | Actually for the same exposure higher ISO means lower noise in images. This is a frequently misunderstood concept. Lowering the ISO only results in less noise if you get more light down the lens to compensate. | |
| Oct 12, 2010 at 7:00 | comment | added | Justin | @Guillaume - Whoops! Thanks for pointing that out! :-) | |
| Oct 12, 2010 at 6:59 | history | edited | Justin | CC BY-SA 2.5 |
deleted 5 characters in body
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| Oct 12, 2010 at 6:53 | comment | added | Guillaume | I though higher ISO means more grain, not less ... | |
| Oct 11, 2010 at 9:07 | history | answered | Justin | CC BY-SA 2.5 |