On Tue, 17 Feb 1998 10:59:23 +0000, JOHN B. CORNS wrote: >To Warren and others with inquiring minds-- > >>Polarizing filters will give you darker blue skies behind your subject, >especially when >the blue sky is at a 90-degree angle to the axis of the >sun (the area of darkest blue >sky on any blue-sky day). Knowing this, >you can see how the time of day can affect >the amount of blue sky you >will get behind your subject relative to the sun's position >in the sky.
Hi Folks: Thanks again, John. When my friend the camera salesman mentioned angles and axis of the sun, I immediately thought it had to do with the filter-- not with mother nature (specifically physical meteorology, which I studied 31 years ago). Your finger-thumb relationship painted a clear picture to me. Before, I had thought the finger and thumb were both in a horizontal plane. Now with these two concepts (filter factor and sun axis) cleared up, I am ready to purchase a new filter and try it in the field. I will probably be using it on my view camera landscapes (with train, of course) rather than with my handheld Nikon, motor-drive grabshots. Warren -> SPORRS: Serious Photographers of Railroad Related Subjects -> Web Site: http://www.anet-stl.com/acphotog/sporrs -> Message © SPORRS® 1998 - All Rights Reserved
