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Forum: Digital Photo Processing Forum 02-08-2009, 03:56 AM
Replies: 18
Views: 1,840
Posted By na4m
Adobe

A solution for this is to use the (free) Adobe DNG converter.

http://www.adobe.com/products/dng/
Forum: U.S. Class 1 Railroad Discussion 12-05-2008, 12:10 AM
Replies: 20
Views: 5,699
Posted By na4m
[QUOTE=AmericanAirFan] Also I have an air band...

[QUOTE=AmericanAirFan]
Also I have an air band radio but I have no clue what frequencies to check how could I find that out?


Justin -
Try monitoring 160.74

Last but not least that rock...
Forum: Railroad Photography Forum 12-24-2005, 04:37 PM
Replies: 27
Views: 3,191
Posted By na4m
20D lenses

In your evaluation of lenses for the 20D don't forget that it has an APS-C size sensor.

This means that there is a 1.6X mulitiplier for normal EF lens focal lengths.

Example: a 50mm lens...
Forum: Digital Photo Processing Forum 03-15-2005, 09:05 PM
Replies: 5
Views: 1,060
Posted By na4m
Manual Exposure/Sunny 16 rule

B.E.C. or Basic Exposure Constant is also known as the Sunny 16 or The Sweet 16 of Photography. It's an exposure calculation system that relies on film speed (ISO) and an analysis of lighting...
Forum: Railroad Photography Forum 03-04-2005, 03:18 AM
Replies: 10
Views: 1,383
Posted By na4m
f/stop's

Well... almost. The higher the f/stop (i.e. f/16) the larger the DOF (depth of field) than say f/11 or f/8. But, f/16 allows (less) half as much light to pass thru the lens as f/11. This assumes...
Forum: Railroad Photography Forum 02-14-2005, 02:35 PM
Replies: 10
Views: 1,383
Posted By na4m
Re: F Stop

Yep - f/stop is the aperture value. A change of f/stop will either double or half the amount of light passing thru the lens. i.e. f/8 to f/11 halves the light; f/8 to f/5.6 doubles the light; ...
Forum: Digital Photo Processing Forum 11-15-2004, 03:04 PM
Replies: 3
Views: 1,427
Posted By na4m
PrintFile has a multitude of products for storage...

PrintFile has a multitude of products for storage and preservation:
http://www.printfile.com

Check your local pro photo store or on-line (B&H, etc.)
Forum: Digital Photo Processing Forum 10-20-2004, 05:17 PM
Replies: 30
Views: 4,071
Posted By na4m
There's no doubt that the photographic world is...

There's no doubt that the photographic world is rapidly moving to digital.

However, some photgraphic professionals believe that many digital images being captured will not be around for future...
Forum: Railroad Photography Forum 04-18-2004, 06:17 PM
Replies: 27
Views: 4,292
Posted By na4m
As someone who is fairly new at submitting images...

As someone who is fairly new at submitting images here I must agree that there has been a noticeable increase in the inconsistency of acceptance of photos based upon my acceptances and rejections.
...
Forum: Railroad Photography Forum 03-12-2004, 07:42 PM
Replies: 4
Views: 1,201
Posted By na4m
If you use manual exposure settings (f/stop and...

If you use manual exposure settings (f/stop and shutter speed) frequently you may find the Rebel is a bit more clumsy if the digital Rebel is the same as it's film counterpart.

Film Rebels (at...
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