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K-1 Mark II vs K-1: high ISO comparison shots
Posted By: colodion, 03-29-2018, 07:04 AM


Shot Pixelf Shift Resolution a 25600 ISO

We've been testing both the K-1 Mark II and the 'old' K-1 side by side. There you have our results with ISO comparison shots from 3.200 all the way up to 819.200 ISO:
Pentax K-1 versus K-1 Mark II: altas sensibilidades - Blog de Tienda Pentaxeros
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03-29-2018, 07:42 AM   #2
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Strange results - the K-1ii colours are cleaner at lower ISOs, but the noise is worse if anything at ISO102400 - the rest isn't a direct comparison.
03-29-2018, 08:09 AM   #3
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Why would you test a new expensive "flagship" full frame camera with a cheap, slow, zoom lens? Wouldn't the results of any such comparative testing be better if you had used a fast, premium-quality, prime lens?
03-29-2018, 08:16 AM   #4
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QuoteOriginally posted by ffking Quote
Strange results
There is definitely something going on with how the accelerator processor is programmed, the colour temperature seems to change at ISO 25,600. The K-1 images just get darker and noisier, but the K-1 II drops the colour temperature from daylight to something closer to tungsten at that point and as far as I can see it isn't happening at ISO 12,800. It's surprising how much of a difference computer programming can make, the difference from ISO 3200 to ISO 12,800 is impressive, especially how it preserves details unlike the smoothing that other noise reduction programs use. I would be curious to see how changing the white balance and subtle smoothing in PP turns out.

03-29-2018, 01:08 PM - 2 Likes   #5
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QuoteOriginally posted by Fenwoodian Quote
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Why would you test a new expensive "flagship" full frame camera with a cheap, slow, zoom lens? Wouldn't the results of any such comparative testing be better if you had used a fast, premium-quality, prime lens?
Isn't one of the main points of high ISO shooting to be able to use slower lenses in lieu of big and heavy wide-aperture ones?

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03-29-2018, 01:23 PM   #6
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It looks like it's interpreting the print raster as noise at iso 3200 and smoothing it? Either that or the K-1 is set to sharpen more than the K-1 II. Looking at the sharpening halos on the ruler it looks like the latter actually.
03-29-2018, 01:49 PM   #7
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The results show what we were expecting: better noise control and tone reproduction on the new Mark II beginning at 3.200 ISO. The highest values (the camera deals with an insane 819.200 ISO) are simply useless. You can judge by yourselves.


Worth mentioning the shot of the dog with the new Pixel Shift handheld mode at 25.600 ISO. It seems both high ISO and the improved super resolution mode team up perfectly.

---------- Post added 03-29-18 at 11:36 PM ----------

The Pentax 28-105 f4-5,6, very unknown, is sharper than the Pentax 24 70 f2,8, for example, which has other virtues such as better bokeh, the price and size do not guarantee anything, correct a crystal of that diameter is expensive and difficult, at f4 we have removed half the problem.
03-29-2018, 05:53 PM   #8
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QuoteOriginally posted by Fenwoodian Quote
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Why would you test a new expensive "flagship" full frame camera with a cheap, slow, zoom lens? Wouldn't the results of any such comparative testing be better if you had used a fast, premium-quality, prime lens?
QuoteOriginally posted by Adam Quote
Isn't one of the main points of high ISO shooting to be able to use slower lenses in lieu of big and heavy wide-aperture ones?
Exactly. This is primarily a test to show the results from both cameras at various ISOs, to show how noise and detail are handled. Almost any lens will fit the bill in these circumstances - it's only important that the same lens is used on both cameras

03-31-2018, 08:44 AM   #9
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QuoteOriginally posted by colodion Quote
The results show what we were expecting: better noise control and tone reproduction on the new Mark II beginning at 3.200 ISO. The highest values (the camera deals with an insane 819.200 ISO) are simply useless. You can judge by yourselves.


Worth mentioning the shot of the dog with the new Pixel Shift handheld mode at 25.600 ISO. It seems both high ISO and the improved super resolution mode team up perfectly.

---------- Post added 03-29-18 at 11:36 PM ----------

The Pentax 28-105 f4-5,6, very unknown, is sharper than the Pentax 24 70 f2,8, for example, which has other virtues such as better bokeh, the price and size do not guarantee anything, correct a crystal of that diameter is expensive and difficult, at f4 we have removed half the problem.
The tests are made with the same objective and in the same conditions, the differences depend on each camera.
07-01-2018, 04:56 PM   #10
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QuoteOriginally posted by colodion Quote

Shot Pixelf Shift Resolution a 25600 ISO

We've been testing both the K-1 Mark II and the 'old' K-1 side by side. There you have our results with ISO comparison shots from 3.200 all the way up to 819.200 ISO:
Pentax K-1 versus K-1 Mark II: altas sensibilidades - Blog de Tienda Pentaxeros
Awe! Cute pupper! Love the shots!
07-02-2018, 02:53 PM - 1 Like   #11
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QuoteOriginally posted by FozzFoster Quote
Awe! Cute pupper! Love the shots!
Thanks FozzFoster
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