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Old Apr 10, 2009, 11:26 AM   #1
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I'm hoping to get some more advice about the low light metering ability of the K20D. I've noticed that at lower light levels the meter either gives out or gives erroneous results. As a specific example, below about f 5, ISO 200, and 2.5 seconds, I no longer get good readings. I did try numerous combinations of f-stop, aperture, ISO, and/or metering mode with the same result. Any pictures come out seriously underexposed. It is true that usually, but not always, the display will flash telling me I'm out of range.

I need to apologize a bit since I posted a similar note a few days ago over at dpreview. The responses essentially said that this is deliberate in the design of the K20D and that the camera is within specs.

Still, I'm a little surprised as several other cameras I have access to (including a point & shoot and a 25 year old Minolta SLR) have no problems metering at light levels this low and considerably lower.

What I was hoping to find out from folks here that also have a K20D, was if your experience at low light is similar. I didn't get any replies to that question at dpreview. Obviously, if this is normal, then I need to get on with things and use the histogram or other means of getting at the correct exposure.

On a more positive note, I've been impressed with the pictures I've gotten so far, and keep looking for excuses to get outside and take more. It really is a great camera!

Thanks for any help,

- Arndt

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Old Apr 10, 2009, 12:03 PM   #2
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I have had no issues with metering in low light with the K20D. An example is shown below. It may help if you can identify the type of lens, the capture mode (i.e. Av, Manual, Program, etc) and also if you can post an example.


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Old Apr 10, 2009, 8:49 PM   #3
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I've had the same problem with both the kit lens and a Tamron 70-300 f4-5.6. I did a careful comparison with my brother's Minolta 5D (he has the same lens). That's how I arrived at the figures above (f5, ISO 200, 2.5 seconds). His Minolta will continue metering no problem.

I've attached two pictures. They're not very photogenic, but they get the point across. The darker was taken with my Pentax, the other (though admittedly not perfect) with my brother's Minolta. Both cameras set to 70 mm, f 5.0, ISO 200, evaluative metering and Av. The K20D took a 1s exposure, and the Minolta a 6s exposure.

Anyone else's K20D behave like this?

Thanks,

- Arndt



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