Google| Subject | Re: ISO value names are becoming ridiculous |
| From | Whisky-dave |
| Date | 01/06/2016 14:44 (01/06/2016 05:44) |
| Message-ID | <f0f8cc67-6eee-4d36-a899-6fc3c40bcfe1@googlegroups.com> |
| Client | |
| Newsgroups | rec.photo.digital |
| Follows | Sandman |
| Followups | Sandman (24m) > Whisky-dave |
On Wednesday, 6 January 2016 12:21:14 UTC, Sandman wrote:
SandmanSO why start at -1 ?
So with the D5, it can boost its ISO to ISO 3,280,000, and suddenly how ISO is named is becoming just stupid. We should use EV steps instead:
We could invent a completly new standard of numbers that make more sense, perhaps ones that more accuratly represent sensitivity or intensity of light such as Lux or teh lovely term foot candles. Or just round up the figures for ISO which I doubt are as accurite or should I say precise as they appear to be.
if an you can go from 1/8 sec. to 1/15 sec yuo coudl go from 800 ISO 1500 ISO then 3000 ISO.
ISO 50 : ISO EV-1 ISO 100 : ISO EV 0 ISO 200 : ISO EV+1 ISO 400 : ISO EV+2 ISO 800 : ISO EV+3 ISO 1,600 : ISO EV+4 ISO 3,200 : ISO EV+5 ISO 6,400 : ISO EV+6 ISO 12,800 : ISO EV+7 ISO 25,600 : ISO EV+8 ISO 51,200 : ISO EV+9 ISO 102,400 : ISO EV+10 ISO 204,800 : ISO EV+11 ISO 409,600 : ISO EV+12 ISO 819,200 : ISO EV+13 ISO 1,638,400 : ISO EV+14 ISO 3,276,800 : ISO EV+15 That would put more normal values to these numbers. The Hi5 setting of the D5 sounds unbelievably high, which of course it also is, but it's "only" twice as "sensitive" as ISO 12,800, but the way ISO is named makes it look stupid as fuck.are you sure about that as it makes NO sense or is it nonsense. Doubling the ISO effectively doubles or makes it twice as sensitive to light meaing you only need half the exposure.
And, when talking about ISO, you'd just say "it was shot at ISO 3" instead of ISO 800.Might be better to not use the same term ISO.
invent a new name like LIT short for Light-In-Tensity :-)
And the new D5 would have a max ISO value of "ISO EV+10" which can be pushed in-camera to "ISO EV+15", which would still be equally impressive.EV values already have a meaning best not to change them.
01/06/2016-
