Thanks Richard! That explains it very well. I guess technically if you
have a photo of the Space Shuttle with a 10 foot scale cube next to it,
that would make more sense than a 1CM cube! As long as they have obvious
markings stating size of the cube, and those marking are visible in the
photo. Makes sense!
Eric
On 8/14/2010 2:27 PM, Richard Kowalski wrote:
Hi Eric.
We had this discussion some time ago. The is no "standard". A scale cube (or
anything else) is meant to show scale. Period. A 1cm cube may be useful for much of the
meteorite photography that is made of smaller samples, up to several hundred grams, but
once you start photographing larger objects, a larger scale object should be used.
Because of this the scale on the cube, or whatever else is being used, MUST be
shown in the photograph, or at the very least (and much less useful) cited in
the photo description. Anything less makes the scale used practically useless.
Since the photo and the description could potentially become separated, showing
the scale in the photograph is always preferable.
We've all seen NASA photos of lunar samples that use a 1 inch cube for scale.
Unfortunately in many of them the photographer did not understand what the scale cube was
actually being used for and did not show the 1 inch marking on the cube in the photos.
This means that anyone who doesn't know the actual size of the scale cube, or someone who
assumes the cube is some "standard", say 1cm, you will assume the object being
photographed is a different size than what it actually is. If you ever see a scale cube
in an image and you can see the scale on the cube, ignore it entirely. It's inclusion in
the image is essentially useless without the scale being visible.
--
Richard Kowalski
Full Moon Photography
IMCA #1081
--- On Sat, 8/14/10, Meteorites USA<[email protected]> wrote:
From: Meteorites USA<[email protected]>
Subject: Re: [meteorite-list] AD: since people are talking about photographing
your meteorites
To: [email protected]
Date: Saturday, August 14, 2010, 2:09 PM
Just wondering... maybe I don't
understand.
http://scaleobjects.com/photographycubes/photography.html
But, what's the point of a 1 Inch or 2 Centimeter "scale"
cube when the
standard is 1 Centimeter? Wouldn't this confuse things?
Eric
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