Image::ExifTool::Pentax(3pm)

1Image::ExifTool::PentaxU(s3e)r Contributed Perl DocumentaItmiaogne::ExifTool::Pentax(3)
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NAME

6       Image::ExifTool::Pentax - Pentax/Asahi maker notes tags
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SYNOPSIS

9       This module is loaded automatically by Image::ExifTool when required.
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DESCRIPTION

12       This module contains definitions required by Image::ExifTool to
13       interpret Pentax and Asahi maker notes in EXIF information.
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NOTES

16       I couldn't find a good source for Pentax maker notes information, but
17       I've managed to discover a fair bit of information by analyzing sample
18       images downloaded from the internet, and through tests with my own
19       Optio S, Optio WP, K10D, K-01 and K-5, and with help provided by other
20       ExifTool users (see "ACKNOWLEDGEMENTS").
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22       The Pentax maker notes are stored in standard EXIF format, but the
23       offsets used for some of their cameras are wacky.  The Optio 330 gives
24       the offset relative to the offset of the tag in the directory, the
25       Optio WP uses a base offset in the middle of nowhere, and the Optio 550
26       uses different (and totally illogical) bases for different menu
27       entries.  Very weird.  (It wouldn't surprise me if Pentax can't read
28       their own maker notes!)  Luckily, there are only a few entries in the
29       maker notes which are large enough to require offsets, so this doesn't
30       affect much useful information.  ExifTool attempts to make sense of
31       this fiasco by making an assumption about where the information should
32       be stored to deduce the correct offsets.
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REFERENCES

35       Image::MakerNotes::Pentax
36       <http://johnst.org/sw/exiftags/> (Asahi models)
37       <http://kobe1995.jp/~kaz/astro/istD.html>
38       <http://www.cybercom.net/~dcoffin/dcraw/>
39       (...plus lots of testing with my Optio WP, K10D and K-5!)
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ACKNOWLEDGEMENTS

42       Thanks to Wayne Smith, John Francis, Douglas O'Brien, Cvetan Ivanov,
43       Jens Duttke, Dave Nicholson, Iliah Borg, Klaus Homeister, Louis
44       Granboulan and Andras Salamon for help figuring out some Pentax tags,
45       Ger Vermeulen and Niels Kristian Bech Jensen for contributing print
46       conversion values for some tags, and everyone who helped contribute to
47       the LensType values.
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AUTHOR

50       Copyright 2003-2023, Phil Harvey (philharvey66 at gmail.com)
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52       This library is free software; you can redistribute it and/or modify it
53       under the same terms as Perl itself.
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