HABS guidelines here.

http://www.nps.gov/hdp/standards/habsguidelines.htm

Download the Photography Guidelines PDF & it explains why they want at
least 4x5 B&W negatives.

: The large-format negative is preferred for two reasons: longevity of the
: film and clarity of the image. The material stability of cut sheet film
: satisfies the archival requirements for longevity (500 years), while the
: clarity of the resulting image comes from a high level of resolution not
: possible in smaller film formats. Film can always be digitized but
: exclusively digital information may not always be recoverable due to the
: vulnerabilities of digital data including media degradation, hardware
: and software obsolescence, file format migration, proprietary formats, etc.

Also, storing archival film is less expensive than digital storage.

You have to have a camera that will allow sufficient movement of the
front & rear standards to achieve perspective correction *IN CAMERA*
without vignetting. For that reason 5x7 is preferred, but you can use
4x5, 5x7 or 8x10.

The real killer is you have to have at least one year of experience at
the GS-10 level (equivalent) preparing HABS, HAL & HAER documentation.

On 12/9/2015 1:34 PM, Yolanda Rowe wrote:
Darren, I get their rationale. The National Archives has experience
with preserving the glass plates and film of yesteryear. I believe
that they are more comfortable with that instead of digital, because
they've already seen the deterioration that is more rapid in
comparison.

Cheers,

Yonnie

On Wed, Dec 9, 2015 at 9:57 AM, Darren Addy <pixelsmi...@gmail.com> wrote:
I can understand hiring a photographer, but the "large format, B&W"
strikes me as rather odd. They don't expect today's cavalry members to
ride horses, so why not use up to date equipment for photographers?
Seems they are after the romance of the past over practicalities. How
much are they allowing for expenses, like renting burros and local
sherpas?

On Wed, Dec 9, 2015 at 9:33 AM, Collin B <coll...@brendemuehl.net> wrote:
http://petapixel.com/2015/12/08/ansel-adams-job-opening-in-us-govt-pays-1000
00-per-year/



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Religion - Answers we must never question.

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