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<p>[QUOTE="SuperDave, post: 2592814, member: 1892"]You'll be limited a bit by the bulk of the camera with light placement; experimentation is in order. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><br /></p><p>Settings for the camera you used on the pics above: Macro focus mode, of course; "Center" AF Area; "Spot" or "Center-weighted" metering. Use Aperture Priority - set to one of the smaller (higher numerically) apertures, try f/5.6 to start, go wider if you can't get fast-enough exposures for a sharp shot - and let the camera determine exposure and compensation. Use the lowest-numerical ISO setting you can get away with, in no case higher than ISO200. With a firm-enough mount, you should be able to use exposures down to 1/20 or maybe even slower, as long as you're triggering the shutter on a timer. From the EXIF data on the images above, this should be easy. You managed 1/80 at f/5.6, meaning there's plenty of light.</p><p><br /></p><p>The minimum focusing distance of this camera increases rapidly as you zoom in; best to use it zoomed all the way out (31mm) as long as you can get enough space between camera and coin to effectively light it.</p><p><br /></p><p>Don't be afraid to use a little diffusion with your lighting, especially with copper. Circulated copper is difficult on contrast, because so little of it actually <i>exists</i> on the coin. I've been known to add contrast in postprocessing.</p><p><br /></p><p>I suspect your iPhone will prove the better coin camera of the two. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="SuperDave, post: 2592814, member: 1892"]You'll be limited a bit by the bulk of the camera with light placement; experimentation is in order. :) Settings for the camera you used on the pics above: Macro focus mode, of course; "Center" AF Area; "Spot" or "Center-weighted" metering. Use Aperture Priority - set to one of the smaller (higher numerically) apertures, try f/5.6 to start, go wider if you can't get fast-enough exposures for a sharp shot - and let the camera determine exposure and compensation. Use the lowest-numerical ISO setting you can get away with, in no case higher than ISO200. With a firm-enough mount, you should be able to use exposures down to 1/20 or maybe even slower, as long as you're triggering the shutter on a timer. From the EXIF data on the images above, this should be easy. You managed 1/80 at f/5.6, meaning there's plenty of light. The minimum focusing distance of this camera increases rapidly as you zoom in; best to use it zoomed all the way out (31mm) as long as you can get enough space between camera and coin to effectively light it. Don't be afraid to use a little diffusion with your lighting, especially with copper. Circulated copper is difficult on contrast, because so little of it actually [I]exists[/I] on the coin. I've been known to add contrast in postprocessing. I suspect your iPhone will prove the better coin camera of the two. :)[/QUOTE]
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