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Forum: Pentax Q
02-13-2017, 05:25 PM
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Thank you, after much research and this thread, I now completely understand what's going on. You guys rock.
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Forum: Pentax Q
02-13-2017, 07:40 AM
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Wow. Ok.
Then, if the sensor can only be fully read at 1/13, one scanline at a time, then by the same reasoning very fast-moving objects won't really be frozen at very high shutter speeds, or at least, if the image is not blurry, will be distorted in shape.
I'll try to snap a picture of a rotating ceiling fan at its highest speed, with the shutter's highest e-shutter speed and see what comes out.
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Forum: Pentax Q
02-12-2017, 11:42 PM
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Thanks, but again, why would I see the same number of bands regardless of shutter speed?
And why do I see no banding with the leaf shutter?
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Forum: Pentax Q
02-12-2017, 11:00 PM
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Hi,
I'm having one hell of a time figuring out why I'm having banding issues with my Q-S1.
Here are two pictures of my washer + dryer, both using the 02 lens at 11mm, 1/500, ISO 12800, f/4.
The only difference is the clean one is using the normal shutter, and the one with banding is using the electronic shutter.
Taken in the evening (no sunlight) and lighting is a mix of incandescent (main room lighting) & LED (bleeding in from adjacent room).
Flickering compensation: 60 hz. (I'm in Canada)
Now, I understand that lighting pulses at 60 hz and that LEDs also pulse. However, what I don't get (at all) is how this would have such an effect -- UNLESS not all pixels of the Q's sensor absorb lighting at the same time?
And even if that was the case, why would I get a clean image with the leaf shutter?
And why would I still see this effect at all shutter speeds past 1/60, but starting to be more noticeable past 1/200 ?
And why would I see the same number of bands, regardless of shutter speeds ?
I'm really confused and wondering if the Q is defective.
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