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10-07-2011, 12:31 PM   #1
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Processing times.

I know my K110D takes some time to process and save long exposures.

My questions:

Do the newer models have faster processing times?

-and-

What are the ratios for longer exposures?

10-07-2011, 12:39 PM - 1 Like   #2
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Check out the following links:
Dark-frame subtraction - Wikipedia, the free encyclopedia
https://www.pentaxforums.com/forums/pentax-beginners-corner-q/74669-dark-frame-subtraction.html

Every camera that is configured to perform dark frame subtraction on long exposures will take approximately twice as long per shot as you may expect. So even newer models will take a long time when performing dark frame subtraction.

You can turn it off, but then your image might have some undesired noise.
10-07-2011, 12:45 PM   #3
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So it's just the Noise Reduction?

I'll try that.
10-07-2011, 01:06 PM   #4
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The write speed of SD has impact as well.

10-07-2011, 01:48 PM   #5
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That worked. That should make my time lapse better. Now I need an adjustable ND filter.
10-08-2011, 03:05 AM   #6
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QuoteOriginally posted by Aegon Quote
Check out the following links:
Dark-frame subtraction - Wikipedia, the free encyclopedia
https://www.pentaxforums.com/forums/pentax-beginners-corner-q/74669-dark-frame-subtraction.html

Every camera that is configured to perform dark frame subtraction on long exposures will take approximately twice as long per shot as you may expect. So even newer models will take a long time when performing dark frame subtraction.

You can turn it off, but then your image might have some undesired noise.
which you can remove instantly in most software during PP.
10-08-2011, 09:50 AM   #7
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Regular NR isn't the best choice for the type of noise you get in long exposures, though. Dark frame subtraction is really a better method. While *some* software allows for that, it isn't as common.
10-08-2011, 11:02 AM   #8
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With what I want to do with long exposure time lapse, I'm good with using a lower ISO and just staying away from the noise.

At 800ISO I get very little noise with 30 seconds, but max. I might require is a 10 second exposure.


Last edited by aT0Mx; 10-08-2011 at 11:14 AM.
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