|
what you say makes sense but when were talking about is below the tolerance of the photosite ie below 100 iso
even on a canon 5d mk1 the iso 50 setting is really iso 100 with -1 stop compensation hence the loss of detail in the shadows and highlights
it seems to me that the minimum sensitivity/gain of current photosites is 100 iso ( 200 iso with nikon ) everything to do with lowering this figure is software
maybe there's a gain threshold were the photosites just fail to work properly ???
if a camera was developed so the minimum gain/sensitivity started at say iso 10 then your method would work
ok forget iso manipulation what about multiple shutter releases over time with mirror lock up on the same frame ( single shot ) calculated to emulate the desired effect of an ND filter of choice
rather than a complete redesign of the electronics behind the photosite this would be a basic change in software
do a search for "canon dslr magic lantern" you will see there's quite a bit of this sort of stuff already going on
Last edited by cosmicma; 10-09-11 at 07:08 PM.
|