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A final bout of 'warm' S2 ISO tests


tashley

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I don't suppose that you have a Nikon D700 lying around to include in the comparison?

If you do, perhaps you could extend the ISO range?

The Nikon runs up to ISO 25600, but it would be silly to include such a cheap camera in this test, would it not?

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I don't suppose that you have a Nikon D700 lying around to include in the comparison?

If you do, perhaps you could extend the ISO range?

The Nikon runs up to ISO 25600, but it would be silly to include such a cheap camera in this test, would it not?

 

No, I don't have one, sorry, though I am sure that such a comparison would be instructive!

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Tim show the crops where the color checker is with the wood and the shadow from the wood.

 

Working ya bud

 

I'm here to be worked!

 

I only took a Passport shot at ISO 160 as my base reference so I'm not sure it'll tell you what you want but here it is, plus some crops from 'where the Passport was before I took it away' at other ISOs...

 

 

160:

p367849452.jpg

___________

 

320

p190342551.jpg

___________

 

640:

p390065863.jpg

--------------------

 

1250:

p87224187.jpg

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Which cookbook would you recommend if I want to buy only one?

 

Hmmm... If you're allowed another in a few weeks but want to start with one I'd focus on gaining one skill to perfection, so Rose Levy Berebaum's Bread Bible. Then I'd move on to Delia's Complete How to Cook or Nigella's How to Eat. Actually the best recipe book I ever had was a Sainsbury own brand one with basic recipes for lots of standard dishes, but they were all really good. Mmmm, French Onion Tart... must have French Onion Tart. I lent that to someone and they never returned it. Like my power drill, a really favourite sweater, my snorkel and a girl I was engaged to once...

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The low ISO noise is clearly visible in the spline of the purple book. In the prior test with daylight it is very smooth at low ISO but in the tungsten test it is not.

 

Yup, that's right, I guess because the blue constituent of the purple is very thin on the ground in tungsten light. I'm still reasonably impressed, personally, I must say. I thought these tungsten tests were going to yield noisier results at every ISO.

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The low ISO noise is clearly visible in the spline of the purple book. In the prior test with daylight it is very smooth at low ISO but in the tungsten test it is not.

 

Maybe...maybe not. The position between the two series is different and some of what MIGHT be noise is too big a feature, more likely some changes due to the fact that aperture/speed changes.

 

However, that siad, the Kodak chips have had blue channel noise since the pro-back. Maybe the way they are made.

 

Overall, I doubt that at 160 the 'noise' would really effect IQ that much. On the other hand, at 1250 the noise seems a lot better than what I get from a P65+ at 800 (NOT binned.)

 

I have to agree with Tim-looks pretty good overall.

 

Victor

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