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02-26-2012, 10:39 PM   #1
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ISO Sensitivity Steps

Hey all,

Not a question, but ... HOW THE HELL DID I MISS THIS!?

Ok, that actually was a question.

Can't believe I'd never thought about it before. Just dawned on me having seen a picture in the high-iso thread from a K-x at 4000 iso. So I grab my K-r, and there it is ... custom functions ... ISO steps. Now I can squeeze out as much ISO as i actually need rather than one stop, heh.

I think I should have read the manual a bit more thoroughly. I can't have been the only one to completely miss this, right guys?

02-26-2012, 11:47 PM   #2
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It isnt that handy, i'm actually thinking of using the bigger steps since it's faster and you've enough dynamic range so that 1/3th of a stop shouldn't make a lot off a differnce.
02-27-2012, 07:23 AM   #3
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I too went with half-stops rather than one-third-stops. Most lens with manual aperture control click at half-stops. In addition to faster, it is easier mentally to keep everything in sync when you are consistent across all exposure controls.
02-27-2012, 09:21 AM   #4
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Hey, some time ago I read that entry level Nikon dslrs don't actually have half stops, but they just take a shot at the nearest full iso stop and then use algorithms to raise the exposure. Is this true for Pentax as well, or does the sensor allow one half and one third stops?

02-27-2012, 01:46 PM   #5
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QuoteOriginally posted by Na Horuk Quote
Hey, some time ago I read that entry level Nikon dslrs don't actually have half stops, but they just take a shot at the nearest full iso stop and then use algorithms to raise the exposure. Is this true for Pentax as well, or does the sensor allow one half and one third stops?
Good question. I do know that if you let the camera control the shutter, the automated speed is stepless.
02-28-2012, 08:06 AM   #6
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Ah ok maybe not so helpful after all.

Gonna give it a go and see if theres any noticable real-world difference between this and full stops.
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