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05-30-2016, 09:38 PM   #1
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K1 at High ISO

I'm delighted by the high ISO performance of my K1 as I do music photography where my K3s often had to work at ISO 6400 which often gave noisy quite rough images, particularly in shadow detail.
I now find that 12800 with the K1 gives not only relatively noise-free images but also with fine detail such as individual hairs sharply defined.


The first image was of two vocalists at a blues gig with rapidly changing colour of light so it was a matter of avoiding the red and blue and grabbing shots in the brief time between those two main colours.
Exposure: ISO 12800 1/100 f 5.6 with DFA 100mm macro lens, Multi auto white balance


The second image is of a native New Zealand Tree Fuchsia flower
Exposure 6400 1/250 f 9 DFA 100mm macro lens, Daylight white balance

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05-30-2016, 09:45 PM   #2
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Are these pictures directly OOC, or was there some photoshopping to denoising? If you did it in the raw converter, can give the parameters.

Thanks
05-30-2016, 09:55 PM   #3
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Camera set to High ISO Auto and raw files converted in PDCU with Noise reduction left at auto settings that the programme selected for the 12800 ISO image. No noise reduction done in Photoshop where basic processing was to adjust brightness and tones with some mid-tone contrast increase used on plant image.
05-30-2016, 10:00 PM   #4
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Thanks for the information

05-31-2016, 02:16 AM   #5
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QuoteOriginally posted by Donald Laing Quote
Camera set to High ISO Auto and raw files converted in PDCU with Noise reduction left at auto settings that the programme selected for the 12800 ISO image. No noise reduction done in Photoshop where basic processing was to adjust brightness and tones with some mid-tone contrast increase used on plant image.
does anybody already tried to compare head-to-head Pentax K-1 vs Pentax K-5II (or better K-5IIs without AA filter) at high ISO? My subjective opinion is that difference at ISO 12800 is allmost inperceptible or very subjective. I have shots made at ISO 51200. Colors are bit different (better with K-1), but noise is very very similar.
By the way, PDCU and Adobe LR makes Noise reduction (NR) and Color noise reduction (CR) [at high ISO] by default.
You could try this link: https://www.facebook.com/profile.php?id=100010126398187
Description is in lithuanian, but pictures are as follows (PSR - Pixel Shift resolution):
1. K-5II_ISO51200_NRoff+CRoff.
2. K-1_ISO51200_NRoff+CRoff_PSRoff.
3. K-1_ISO51200_NRoff+CRoff_PSRon.
4. K-5II_ISO51200_NR25+CR40_PSRoff.
5. K-1_ISO51200_NR25+CR40_PSRoff.
6. K-1_ISO51200_NR25+CR40_PSRon.
7. K-1 (left) comparison with K-5II in Adobe LR, without sharpening: K-1 vs K-5II_ISO51200_LR-CC_SharpeningOFF.
8. PSR (200 proc. magnification) with artifacts.
05-31-2016, 03:05 AM   #6
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QuoteOriginally posted by Medex Quote
does anybody already tried to compare head-to-head Pentax K-1 vs Pentax K-5II (or better K-5IIs without AA filter) at high ISO? My subjective opinion is that difference at ISO 12800 is allmost inperceptible or very subjective. I have shots made at ISO 51200. Colors are bit different (better with K-1), but noise is very very similar.
By the way, PDCU and Adobe LR makes Noise reduction (NR) and Color noise reduction (CR) [at high ISO] by default.
You could try this link: https://www.facebook.com/profile.php?id=100010126398187
Description is in lithuanian, but pictures are as follows (PSR - Pixel Shift resolution):
1. K-5II_ISO51200_NRoff+CRoff.
2. K-1_ISO51200_NRoff+CRoff_PSRoff.
3. K-1_ISO51200_NRoff+CRoff_PSRon.
4. K-5II_ISO51200_NR25+CR40_PSRoff.
5. K-1_ISO51200_NR25+CR40_PSRoff.
6. K-1_ISO51200_NR25+CR40_PSRon.
7. K-1 (left) comparison with K-5II in Adobe LR, without sharpening: K-1 vs K-5II_ISO51200_LR-CC_SharpeningOFF.
8. PSR (200 proc. magnification) with artifacts.
At a pixel level, the amount of noise will be the same between a K5 and K-1, but if you view or print the images at the same size, you will notice the noise a lot more on the K5 than on a K-1. I think my max iso for the K-1 would be about 12,800, while for the K5, I wouldn't generally go above iso 3200.

Last edited by Rondec; 05-31-2016 at 07:10 AM.
05-31-2016, 03:19 AM - 2 Likes   #7
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Three at 6400. And pushed a couple of stops from there....





05-31-2016, 03:25 AM   #8
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QuoteOriginally posted by Sandy Hancock Quote
Three at 6400. And pushed a couple of stops from there....




Very nice images

---------- Post added 05-31-16 at 01:28 PM ----------

QuoteOriginally posted by Rondec Quote
At a pixel level, the amount of noise will be the same between a K5 and K-1, but if you view or print the images at the same time, you will notice the noise a lot more on the K5 than on a K-1. I think my max iso for the K-1 would be about 12,800, while for the K5, I wouldn't generally go above iso 3200.
Two stops difference. Reasonable in my opinion

05-31-2016, 06:38 AM   #9
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Nice images. Everyone talks about noise when talking about how well a camera handles high ISO images, but just as important are all other parts of picture quality. In my K5iis, I think the noise is fine at 6400, but clarity and contrast are more of the things that make pictures at that high ISO not as enjoyable as pictures at a lower ISO.
05-31-2016, 07:27 AM   #10
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I have k5iis and k1. i can see a huge different at handling nois between both cameras. k1 12800 is nearly k5iis 3200 .
i will sell all my cameras just for k1.since the arrival of k1 i dont want to use any crop sensor camera.
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