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light gathering vs diameter of reflecting spheres
- From: Charles Stumpfel <stumpfel@xxxxxxxxxxxx>
- Subject: light gathering vs diameter of reflecting spheres
- Date: Thu, 06 Jul 2000 11:13:17 -0400
Knowing next to nothing ---
I'd like to understand the how reflectors might be used for panoramic
imaging.
A video camera was set up viewing a 3/4" diameter chrome steel ball
bearing so that the ball's image filled the camera's vertical FOV.
How does the diameter of a reflecting sphere affects light gathering? In
other words does a larger diameter ball bearing, imaged to still fill the
FOV, cause more light to fall in the image? I'm ordering a 1" diameter
ball to find out the quick way. [The 1 " diameter ball is supplied by
Small Parts, Inc. in Miami FL]
Does anyone know of a supplier for precision ball bearings larger than 1"
in diameter? Any specifics on other commercially available curved
reflectors other than ball bearings would also be of interest.
Chas Stumpfel
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