Forum: Pentax K-1 & K-1 II
11-05-2016, 02:13 PM
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FWIW, any 'sensor calibration' could only be software-based. Aside from the externals like IR filters, the physical chip housing, wiring, SR etc, the imaging sensor [and the RGB sensor] chips aren't like the auto-focus assembly or the shutter, for example, where a repair shop could make some mechanical adjustments to fix or tune them.
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Forum: Pentax K-1 & K-1 II
08-25-2016, 12:11 AM
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One might gain that impression from some of the posts in this thread, but on the other hand there is this series of astro-related tests where the K-1 does very well indeed: The Sensor Noise DB. – Brendan Davey Photography
and, of course, Pentax themselves have highlighted the camera as an astro shooter.
Plus as a night shooting package (price, good sensor, Astro-tracer, GPS, flippy screen, control illumination LED's), the K-1 seems to be hard to beat.
White dots at 100-200% magnification may or may not be visible for you too, depending on a wide range of so-far indeterminate shooting or environmental variables.
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Forum: Pentax K-1 & K-1 II
08-06-2016, 04:32 AM
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I guess these dots should appear when shooting long exposures with just the lens cap on? And does the ISO matter?
I ask because I didn't see such a pattern of dots with the K-1 in Brendan Davey's long-exposure camera noise tests: The Sensor Noise DB. – Brendan Davey Photography |