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Newbie Net 6/28/2009

Posted Mon 06/29/2009 @ 12:00 AM by mikewren

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This week, Paul K2FX discusses QSL cards: What are they and how do Amateur Radio operators use them?

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Newbie Net 6/21/2009

Posted Mon 06/22/2009 @ 2:27 PM by mikewren

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This week, Paul K2FX gets down to basics: Why is there Amateur Radio?

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Newbie Net 6/14/2009

Posted Mon 06/15/2009 @ 2:58 PM by mikewren

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This week, Paul K2FX hosts a lively roundtable discussion as to the future of the Newbie Net, including Internet-based linking of repeaters, the possible addition of IRLP, and why it is important that the net stay anchored on the K2RRA repeater.

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Newbie Net 6/7/2009

Posted Mon 06/08/2009 @ 12:00 AM by mikewren

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newbienet2009-06-07.mp3

On this weeks abbreviated Newbie Net (due to repeater interconnectivity issues), Paul K2FX hosts an open forum.

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Newbie Net 5/31/2009

Posted Mon 06/01/2009 @ 12:00 AM by mikewren

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This week, Paul K2FX wraps up the 75th Annual Greater Rochester Hamfest.

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Newbie Net 5/24/2009

Posted Mon 05/25/2009 @ 12:00 AM by mikewren

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This week, Paul K2FX previews the upcoming 75th annual Rochester Hamfest.

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Newbie Net 5/17/2009

Posted Mon 05/18/2009 @ 12:00 AM by mikewren

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This week, Paul K2FX talks Hamfest survival guide.

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Lighroom Produces DNG's 2x the Size of SRAW1 files for Canon 5D Mark II

Posted Wed 05/13/2009 @ 3:33 PM

So this afternoon I finally addressed something
I have noticed when processing SRAW1 files from my Canon 5D Mark II.
SRAW1 files are being converted to a DNG file
that is almost twice the size of the native CR2 (RAW) file in Lightroom
v2.3.
This is a huge filespace premium to pay for maintaining my archive in
DNG. A quick search of Google turned up nadda.

Also annoying but minor, CR2 and DNG SRAW1 files display as an image
with 0 x 0 resolution, and no preview image is displayed in Finder in
MacOS v10.5.6

Here's the down and dirty:

Original Canon 5D Mark II SRAW1 .CR2 file: 10MB

DNG, no JPEG Preview, Preserve Raw Image, Uncompressed: 57.2MB
DNG, no JPEG Preview, Preserve Raw Image, Compressed: 18MB

DNG, no JPEG Preview, Convert to Linear Image, Uncompressed: 57.2MB
DNG, no JPEG Preview, Convert to Linear Image, Compressed: 24.9MB

DNG, no JPEG Preview, Preserve Raw Image, Uncompressed, Embed Original RAW file: 66.4

Update 5/13/2009 @ 5p: According to this post in Adobe Forums, "The sRaw format is not covered by the DNG specification. When
converting, it must be changed; in fact, the amount of data needs to be
increased by 50%."