Exposure triangle explanation please.  Started 5 months ago |
Questions thread Veteran MemberPosts: 4,470 Re: All fine and
good, but ... In reply to texinwien, 5 months ago  texinwien
wrote:  Jeff wrote:  There certainly is an elegance to the Hv =
Ev * t formulation, but I don't think we'll be seeing an iso-
less world for a very long time.  Physics is often quite
elegant, and I think (and hope) you're wrong about ISO.  First
off, few shooters want to wait until PP to set image brightness.
Most want an image now, out of the camera and straight to
facebook. So somewhere the captured light has to be translated
into an image. The camera might set the gain automatically
assuming the user wants a 'middle grey', or the user might do it
him or herself. But either way, there's a gain knob that has to
be calibrated and set. Historically the gain knob is calibrated
in ISO units. You prefer to do it PP, which is fine and actually
quite logical, but you're still turning a knob, too. Call it
whatever you like, it's just a