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PostPosted: Mon Mar 31, 2008 10:04 pm 
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Hi folks,

In the course of composing my post Know your native ISO I discovered that while Nikon say that, for the D300, "ISO sensitivities of ISO 200 or above are recommended" (page 97 of the manual) its native ISO appears to be about 140 (from this table).

As I discussed in my other post there are very good reasons for not operating below a camera's native ISO (use an ND filter instead) so I am interested to know whether any D300 owners actually see image degradation when using an equivalent ISO of 140 rather than 200. :?

Bob.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
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Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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PostPosted: Tue Apr 01, 2008 12:06 am 
i dunno bob, but from what ive heard about how the d300 handles Iso, im pretty sure that most owners of the d300 dont care what iso they use as the d300 and d3 are pretty far out there when it comes to low levels of noise at highers iso's. I can see where you are coming from though. But is there really a world apart enough of a difference between two different iso's iso 100 and 200?


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PostPosted: Tue Apr 01, 2008 12:30 am 
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Gregory.Rotter wrote:
...But is there really a world apart enough of a difference between two different iso's iso 100 and 200?

On cameras such as the D300 it seems from the manual as though there really might be, which is why I am hoping for feedback from owners. Gordon's test shots in the D300 review don't seem too bad at ISO 100, though I'm not clear whether the camera applies extra processing to the ISO 100 JPEG shots to clean them up a little.

Bob.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
Leica D Vario-Elmar 14mm-150mm f/3.5 - f/5.6 ASPH.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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PostPosted: Tue Apr 01, 2008 1:27 am 
Yes, Nikon always had bad luck with ISO 100. Just look at the D40. It starts at ISO 200. :wink:


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PostPosted: Tue Apr 01, 2008 1:32 am 
luis wrote:
Yes, Nikon always had bad luck with ISO 100. Just look at the D40. It starts at ISO 200. :wink:


Well the D200 had a native ISO very close to ISO100...


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