K5 users, what ISO?
Posted 31/08/2011 - 19:50
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I simply looked at DXO mark for the numbers and i do see it back when processing the photos between ISO80 and ISO400.
I know there are difference with lower settings as well but the differences is just too small to spot with normal use.
I haven't really had it above ISO3200.
I did try 12600 just to test it, as long as you expose to the right and bring back the exposure a bit in post processing the amount of noise would then be quite low and you should still have some detail.
Just don't underexpose or else the noise will be too much.
I also found this true with the K10D and his highest ISO, you still could get very decent photos that way.
I know there are difference with lower settings as well but the differences is just too small to spot with normal use.
I haven't really had it above ISO3200.
I did try 12600 just to test it, as long as you expose to the right and bring back the exposure a bit in post processing the amount of noise would then be quite low and you should still have some detail.
Just don't underexpose or else the noise will be too much.
I also found this true with the K10D and his highest ISO, you still could get very decent photos that way.
Posted 31/08/2011 - 20:43
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For landscapes then ISO80 whenever practical, one of the reasons I bought the K5 was for its wide dynamic range and as far as I'm aware ISO 80 makes best use of it.
For high Iso I've just been away on my holidays where I shot lots of interior shots at ISO6400 and the results are excellent so I now have auto ISO limits set to ISO 6400, amazing how low the light can be and the K5 still gets great shots
Here's one example:

For high Iso I've just been away on my holidays where I shot lots of interior shots at ISO6400 and the results are excellent so I now have auto ISO limits set to ISO 6400, amazing how low the light can be and the K5 still gets great shots
Here's one example:

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Posted 31/08/2011 - 21:48
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Posted 31/08/2011 - 22:41
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One thin gI don't hear mentioned is if you are using lightroom you can adjust the exposure on the k20d by 2 stops each way, on the k-5 you can do it by 4 stops each way....
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Posted 01/09/2011 - 00:32
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davex wrote:
As Stefan says it's in the dynamic range. bringing out the shadows in a high contrast scene where you've exposed to not blow the highlights is a delight at ISO80 on the K-5
Quote:
In very bright conditions I'll take advantage of ISO 80
Is there a noticable difference in IQ between ISO 80 and say 400 on the K5?In very bright conditions I'll take advantage of ISO 80
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
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Work: Helsinki; Home: Lahti
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my kit: K3, K5, K-01, DA 18-55, D-FA50 macro, Siggy 30/1.4, 100-300/f4, 70-200/2.8, Samsung 12-24/f4, Tamron 17-50, and lots of other bits.