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09/26/2012 03:11:09 PM · #1 |
This is a really interesting read and woke me up to something I guess I had been assuming for years....... Figured some might find it interesting (prob not the creative only don't tell me about hardware types though :-) ).
The Online Photographer (link) |
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09/26/2012 03:35:22 PM · #2 |
Good discussion. Perhaps a little esoteric for many non-technical folks, but pretty well explained. One of the really important, and counter-intuitive points he makes is that if you increase the dynamic range of a sensor (by adding electron capacity) the native ISO of the sensor goes *down.* Makes sense once you think about it; bigger capacity, takes longer exposure to saturate at a given condition, so lower native ISO.
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09/26/2012 03:42:58 PM · #3 |
| Excellent! Thanks for pointing it out. |
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09/26/2012 03:55:36 PM · #4 |
Scary ...
Originally posted by Linked Article:
The ISO standard for in-camera light metering and auto-exposure, ISO 2721:1982, hasn't changed in thirty years. It's still applicable to modern DSLRs. But... in the case of multi-zone metering systems like matrix metering and evaluative metering, the standard essentially becomes "whatever looks good."
So there we are: the metering and auto-exposure may be based on whatever the manufacturer thinks looks good, the sensitivity is based on whatever the manufacturer thinks looks good, and furthermore the in-camera JPEG conversion is based on whatever the manufacturer thinks looks good ... |
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09/26/2012 04:09:59 PM · #5 |
Originally posted by GeneralE:
Scary ... |
Meh... looks good to me! ;-)
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