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PostPosted: Thu Jan 07, 2010 9:36 pm 
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Joined: Sun May 27, 2007 12:39 pm
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Location: France
Bonsoir,

I bought a neutral filter ND8 and played with slow speed, obvioulsy on a tripod and with a remote and 3 s timer :)

Here's the result:

Image

Problem is, when I take the same picture without the filter, the EXIF data are the same: speed temps d'exposition is 8 :o

Image

Side by side

Image Image

What's wrong with my pictures? Who's the culprit:
  • The Pentax K-7 1.02 firmware?
  • The standard Mac OS X 10.5.8 viewer app?

This is really annoying :(

Have you experienced the same problem :?:

Best regards,

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--- rei_vilo
Pentax K-5 + BG4 + DA* 16-50 + DA* 50-135 + DA* 60-250 + AF-540FGZ
reivilophotography.weebly.com


Last edited by rei_vilo on Sun Jan 17, 2010 7:28 am, edited 1 time in total.

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PostPosted: Sat Jan 16, 2010 6:48 pm 
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Location: France
Bonjour,

I did some tests according to the protocol suggested at PentaxWorld.

Image

Image

  • The excellent EXIF Tool utility reported correct values.

    Quote:
    IMGP0593.JPG 2010:01:10 17:29:28 f/3.2 1/10s iso100 50.0 mm (PENTAX K-7 + smc PENTAX-DA* 16-50mm F2.8 ED AL [IF] SDM)
    IMGP0594.JPG 2010:01:10 17:30:35 f/11.0 8s iso100 50.0 mm (PENTAX K-7 + smc PENTAX-DA* 16-50mm F2.8 ED AL [IF] SDM)
  • iPhoto on my iMac running on Mac OS 10.5.8 reported then wrong, as posted earlier.
  • iPhoto on my iMac running on Mac OS 10.6.2 and the latest camera patch reported them right.

    Image Image


So the culprit was the non-updated Mac OS.

I feel better now :) .

_________________
--- rei_vilo
Pentax K-5 + BG4 + DA* 16-50 + DA* 50-135 + DA* 60-250 + AF-540FGZ
reivilophotography.weebly.com


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PostPosted: Sat Jan 16, 2010 8:36 pm 
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Joined: Mon May 12, 2008 6:00 pm
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It's strange, why would iPhoto read the EXIF wrongly?


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PostPosted: Sat Jan 16, 2010 8:56 pm 
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Joined: Sun May 27, 2007 12:39 pm
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Location: France
Bonsoir,

With new dSLRs being launched every day, I guess the RAW converter and the EXIF reader need to be refreshed.

So Mac OS 10.5.8 wasn't up-to-date and Mac OS 10.6.2 seems to be.

Probem solved :)

_________________
--- rei_vilo
Pentax K-5 + BG4 + DA* 16-50 + DA* 50-135 + DA* 60-250 + AF-540FGZ
reivilophotography.weebly.com


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PostPosted: Sun Jan 17, 2010 8:24 am 
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Ah, but you're displaying a JPEG which should have a standard format for displaying the EXIF information.

I'll put this one down as one of the mysteries of life :)


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