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<p>[QUOTE="Exchequer, post: 810985, member: 21087"]It's not due to your lack of experience. It's the physics of the camera. The camera can only focus on one plane...if the coin is tilted in reference to the camera's film plane (film plane=back of camera if the back is flat, or front of lens with flat glass) there will always be a portion out of focus. You could stop way down to try to regain some apparent focus, but then you lose sharpness due to slow shutter speed and diffraction from the small aperature. </p><p> </p><p>Even a coin in a slab, laying on the table, may not be flat enough for a sharp pic if the coin is mounted in the slab a bit tilted. If this is the case, you can use a coin to prop up the slab in the appropriate direction so that the coin is perfectly parallel to the film plane.</p><p> </p><p>I'm reading the book <i>Numismatic Photography</i> by Mark Goodman, and I highly recommend it.[/QUOTE]</p><p><br /></p>
[QUOTE="Exchequer, post: 810985, member: 21087"]It's not due to your lack of experience. It's the physics of the camera. The camera can only focus on one plane...if the coin is tilted in reference to the camera's film plane (film plane=back of camera if the back is flat, or front of lens with flat glass) there will always be a portion out of focus. You could stop way down to try to regain some apparent focus, but then you lose sharpness due to slow shutter speed and diffraction from the small aperature. Even a coin in a slab, laying on the table, may not be flat enough for a sharp pic if the coin is mounted in the slab a bit tilted. If this is the case, you can use a coin to prop up the slab in the appropriate direction so that the coin is perfectly parallel to the film plane. I'm reading the book [I]Numismatic Photography[/I] by Mark Goodman, and I highly recommend it.[/QUOTE]
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