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To: Michael Dunn who wrote (1959)	12/5/1997 1:31:00 PM
From: limtex	Read Replies (1) \| Respond to of 60323

Sorry to be a bit negative but I don't think further discussion of this subject on the internetis helpful at this time.

To: Michael Dunn who wrote (1959)	12/6/1997 1:51:00 AM
From: Craig Freeman	Respond to of 60323

Michael (apologies to all), your response tested my search skills but I finally managed to come up with a link to explain my claim: shum.cc.huji.ac.il According to this article, Earth survey photography is commonly performed from aircraft using a 9" x 9" film camera and a 6" focal length lens. The film has a resolution of 8 microns, providing 1,125,000 pixels along each dimension. When digitized at 15u, it takes 230MB to store one image. Since the lowest altitude once can reasonably use to define a "satellite" is above the stratosphere (approx. 40 miles) and a dime is approx. 1/2" in diameter, my computations yield a ratio of 5 million to one. Although the difference between "usual and customary" and "the dime challenge" is more than 4:1, I dare say that the Feds may well have engineered a longer focal length lens with the same resolution or have paired a crisper 6" lens with higher resolution film. You plunk the apparatus in a rocket, fly it around the world once and recover the film. What I don't understand is why anyone would need to resolve a dime in the first place. Craig