Answer by Michael C for Should higher ISOs really be preferred (all other...
And since the RAW files store the actual voltages read, before any changes to the brightness take place, the values in the RAW file will be the same regardless of the ISO setting.This assumption is...
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Answer by Michael Nielsen for Should higher ISOs really be preferred (all...
I've been looking at the issue that you see more noise in the High ISO show than the Iso 100 shot even though everyone is telling you that is should be opposite. People are telling you why it should be...
View ArticleAnswer by foosion for Should higher ISOs really be preferred (all other...
In order to minimize noise, you want as much light as possible on the sensor, subject to (1) not clipping highlights in which you want to preserve detail, (2) setting aperture for your desired depth of...
View ArticleAnswer by BlueRaja - Danny Pflughoeft for Should higher ISOs really be...
Before I accept an answer, I just wanted to add a summary of what I've learned from all these great answers and several other sources. I've seen several users recommend "using the highest ISO you can...
View ArticleAnswer by Guffa for Should higher ISOs really be preferred (all other things...
Although not incorrect per se, the statement in that answer is confusing.The answer is not comparing noise at different ISO settings, it's comparing the difference between analog and digital...
View ArticleAnswer by Anon for Should higher ISOs really be preferred (all other things...
I believe your assumption is incorrect. Though perhaps in some cameras there might be a fixed gain and the ISO is purely digital filtering (which could be done offline just as easily), I believe that...
View ArticleAnswer by jrista for Should higher ISOs really be preferred (all other things...
It would be wrong to think that increasing ISO results in no "physical" change in the camera at all. The problem with ISO is that people often call it sensitivity. That is really a...
View ArticleAnswer by Matt Grum for Should higher ISOs really be preferred (all other...
Changing the ISO setting does invoke a change in the camera, it alters the on chip amplification. The voltages produced by incoming light are amplified prior to digitization. The reason for this is...
View ArticleAnswer by Itai for Should higher ISOs really be preferred (all other things...
Sensors cannot be made more or less sensitive. They simply respond to photos by freeing an electrical charge which is accumulated per photosite.That charge is an analog quantity. Technically, it...
View ArticleAnswer by Francesco for Should higher ISOs really be preferred (all other...
A very quick answer: raising the iso setting you are applying a greater gain to the signal. This means that you are multiplying in an "analogue" way (amplifying a current) and not in a "digital" way,...
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Should higher ISOs really be preferred (all other things being equal)?
My understanding of the ISO setting on digital cameras is that, unlike film-cameras, changing the ISO does not evoke any physical change in the camera. Rather, it simply tells the camera to multiply...
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