Timeline for How can I improve portraits when shooting in low light without flash?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Nov 7, 2014 at 15:55 | comment | added | Jim Bolla | The ISO at which the noise generated by the sensor overpowers the noise-reduction gained by ETTR is camera-dependent. One would have to set up a series of controlled shots at various ISOs and exposure levels (keeping subject, aperture, and exposure time constant) and then compare the results. | |
| Nov 7, 2014 at 8:13 | comment | added | JDługosz | @JimBolla "ETTR is irrelevant in the sensor limited high ISO region in Figure 2. In that high ISO region, one is "light limited" and ETTR is irrelevant." at clarkvision.com/articles/iso/index.html As I wrote elsewhere, he doesn't consider quantization of the A/D but that might not be an issue since the photon count is a small number not an analog measurement. | |
| Nov 6, 2014 at 21:54 | comment | added | Jim Bolla | "The ISO is misunderstood and overused with RAW: if the image is too dark, turning up the ISO is no different than fixing it in Lightroom " ... absolutely false, otherwise ETTR would not be a thing. | |
| Nov 6, 2014 at 8:44 | comment | added | JDługosz | Yea, I have an A posted on that Q that goes into more detail on that point. | |
| Nov 6, 2014 at 8:39 | comment | added | Philip Kendall♦ | "turning up the ISO is no different than fixing it in Lightroom". While this is partially true, it's definitely an oversimplification and depends a lot on the sensor. See this answer for more details. | |
| Nov 6, 2014 at 8:37 | history | answered | JDługosz | CC BY-SA 3.0 |