Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
by Saaru Lindestokke                

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0

You're getting a little confused. Un-boosted ISO Or what you're calling "native range." There's a native ISO setting, which is what the sensor uses without any amplification, and you can consider this the "base" ISO setting of the camera. All of the unboosted other ISO settings are achieved by amplifying the gain on this native signal. Boosted ISO ...


2

The answer is 2, hardware amplification only for native ISO, hardware with additional software amplifications/reduction for extended ISO. Extended ISO is like taking a RAW image and then changing ISO in Lightroom, only it's done is camera. Extended ISO also only works in jpeg, not raw for obvious reasons.


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Native ISO is the camera ISO sensitivity that requires the least amplification to be read by the A/D. It's a precise attribute of the design of the camera, does not have to match the standard ISO values (and often it doesn't) and doesn't imply the absence of any amplification -the A/D converter needs a readable signal, after all. The camera knows internally ...


1

The Canon 7D Mark II is a very configurable camera. One of the options the user has is to choose which options are selectable from various menus. ISO speed setting increments is one such choice. On page 434 of the EOS 7D Mark II Instruction Manual there are instructions on how to set Custom Function 1 (C.Fn1: Exposure) --> ISO Speed Setting Increments to ...


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Check advanced options to see if ISO step is in 1... if it is, change it to 1/2 or 1/3 as needed.


3

Whether this is where you found it or not, the definition you give for "Unity Gain ISO" comes from the Clarkvision web site's section on digital sensor performance. As an updated version of that page explains, it's a silly concept. To quote: The fundamental reason Unity Gain is not relevant is because the sensor in a digital camera is an analog system, ...


1

Unity gain is such ISO number at which camera outputs pixel values roughly equal to numbers of electrons in cells. Native ISO is such ISO value at which the maximum number of electrons in cell is matched to saturation point. It is almost always division instead of multiplication for sensors with big enough electron capacity per cell. Native ISO is as unique ...



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