actuation help

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Archive 2009 · actuation help

Grantland
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p.1 #1 · actuation help

i have a 1ds2 and would like to know the shutter count. i use a macbook pro so cancount will not work.

grant

Edited on Jul 03, 2009 at 06:54 PM · View previous versions

Jul 03, 2009 at 01:27 PM

SteveS
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p.1 #2 · actuation help

Pm sent your way Grant.

Jul 03, 2009 at 02:58 PM

lancemoreland
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p.1 #3 · actuation help

This is all you need and there is a mac version:

http://www.sno.phy.queensu.ca/~phil/exiftool/

It is freeware and tells you way more than the shutter count. It'l give you everything in the exif. There is a windows version and a gui interface to run it for windows here:

http://freeweb.siol.net/hrastni3/foto/exif/exiftoolgui.htm

Enjoy,
Lance
www.lancemoreland.com

Jul 03, 2009 at 05:09 PM

Grantland
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p.1 #4 · actuation help

thanks to both lance and steve.

question: i sent steve a pic and cancount reads 12741

exif viewer has two actuation # locations:
1. Actuation Counter: 12741
2. Camera Actuations: 209349

i am to assume Actuation Counter is accurate as it coincides with cancount?

grant

Jul 03, 2009 at 06:54 PM

lancemoreland
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p.1 #5 · actuation help

Jul 03, 2009 at 07:45 PM

orangefirefish
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p.1 #6 · actuation help

Grantland wrote:
thanks to both lance and steve.

question: i sent steve a pic and cancount reads 12741

exif viewer has two actuation # locations:
1. Actuation Counter: 12741
2. Camera Actuations: 209349

i am to assume Actuation Counter is accurate as it coincides with cancount?

grant
From my understanding actually I would be inclined the believe the 209349 number. Each time the actuation counter rolls past 65535, it leaves a marker behind, and resets to 0. So the final actuations would be determined by 65536 times # of markers + actuations counter (you'll see later, why 65536 is used).

I've seen this in exif viewer my 1ds2 and 1d2 before after they've rolled past 65535- 1dcount matched the higher number perfectly, and my estimates as well coincided with the second number.

In this case the 65535 rolled over 3 times, plus 12741 is 209346. Why is it 3 less than 209349? Well each time it rolled over from 65535 to 0, that actuation should count, so technically we should be multiplying by 65536.

Jul 03, 2009 at 11:22 PM

Grantland
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p.1 #7 · actuation help

thanks orange.

therefore, when the shutter rolls past 65535 it sets back to zero so cancount will/should never give a shutter count higher than 65535. is this true of cancount?

Jul 04, 2009 at 05:58 AM

orangefirefish
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p.1 #8 · actuation help

Grantland wrote:
thanks orange.

therefore, when the shutter rolls past 65535 it sets back to zero so cancount will/should never give a shutter count higher than 65535. is this true of cancount?

I've gotten correct numbers from 1dcount and exit viewer- never used cancount- but that seems like it's not reading the rollover tag that the camera uses- what do you think is the correct count?
You should know since those numbers differ by almost an entire shutter life...

Jul 07, 2009 at 01:00 PM


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