Man of Honour
Hi fellow photo nerds 
I have a problem in my head that I can't find a definitive answer to.
Some time back I had set my camera from auto ISO to fixed ISO 200 manual for some long exposure shots with ND filter. Now I forgot about this totally when on holiday an took tons of under exposed shots, or struggled keeping shutter speed high when indoors
As I shoot in RAW lightroom can bring them back to life easily enough, though as you up the exposure in lightroom you get noise becoming apparent which is understandable.
So here is the thing....
If RAW captures all sensor data, then surely when processing in lightroom it would have same effect of having camera auto ISO the shot ?
If this were true then maybe having manual ISO stuck to min value is a good thing, as you are always getting best from sensor possible, to the levels you want without camera deciding for you and with no possible unneeded noise creeping in
I guessing downside of leaving ISO pinned low is aperture priority mode becomes unusable in low light as you just can't get the shutter speed high enough.
Help, my brain hurts
I have a problem in my head that I can't find a definitive answer to.
Some time back I had set my camera from auto ISO to fixed ISO 200 manual for some long exposure shots with ND filter. Now I forgot about this totally when on holiday an took tons of under exposed shots, or struggled keeping shutter speed high when indoors
As I shoot in RAW lightroom can bring them back to life easily enough, though as you up the exposure in lightroom you get noise becoming apparent which is understandable.
So here is the thing....
If RAW captures all sensor data, then surely when processing in lightroom it would have same effect of having camera auto ISO the shot ?
If this were true then maybe having manual ISO stuck to min value is a good thing, as you are always getting best from sensor possible, to the levels you want without camera deciding for you and with no possible unneeded noise creeping in
I guessing downside of leaving ISO pinned low is aperture priority mode becomes unusable in low light as you just can't get the shutter speed high enough.
Help
, my brain hurts
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