What is this fascination with iso6400?

Started Feb 11, 2013 | Discussions thread
dosdan Contributing Member • Posts: 534
Re: This is

mike703 wrote:

The idea of deliberately underexposing so much seems a bit weird (I normally 'expose to the right' as far as possible) but I take your point.

BTW, is the haze in the brighter areas smoke/incense, air pollution or lens glare?

As Mosswings points out below - some smoke from the fires, general haze, and innumerable mosquitoes!

Best wishes

Mike, two things:

1. Once you shoot above base ISO, you are less likely to reach FWC for more and more sensels (aside possibly for specular highlights, which is why a clipping % is often included ). So while it may be ETTR as far as the histogram is showing, the sensor is is not ETTRed.

2. Most cameras switch from analogue to digital gain in the ISO1000-ISO3200 region. So shooting at ISO6400 provides no advantage at all if you shot raw.


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