Tuesday 15 January 2013

Figuring out the CHDK shutter speeds

This table is to try and help figure out the calculations for the different Value Factor fractions against different shutter speeds to help you figure out the maths.

Shutter Speed              Value Factor              Final Shutter Speed

 1/10                                      5                   0.5 sec (1/2 a second)
1/100                                    5                   0.05 sec (1/20 second)           
1/1000                                  5                   0.005 sec (1/200 second)
1/10000                                5                   0.0005 sec (1/2000 sec)
1/100K (1/100,000)             5                   0.00005 sec (1/20000 sec)

1/10                                      5                          0.5 sec (1/2 a second)
1/10                                      50                        5 seconds
1/10                                      500                      50 seconds
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2 comments:

  1. TheTechTalker16 January 2013 at 05:38

    Thanks FT100. This table surely makes the Shutter Speed/Value Factor combinations a bit simpler to understand and remember.

    Cheers!
    Anukul

    ReplyDelete
  2. Unknown17 October 2013 at 11:40

    I also thank you not only for your brilliant videos but this extra help. I've the SX50 and the CHDK software is slightly different but, with your help I'm sure I'll overcome that. I so much wanted to try star trails and longer than the 15 seconds offered, I now can explore with confidence knowing I have help when needed. Thank you again.
    Marc ��

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