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<blockquote data-quote="nickt" data-source="post: 278938" data-attributes="member: 4923">Yes, aperture is f stop. Higher number means smaller opening. More light required for exposure, but more depth of field (more in focus front to rear of subject) at the higher f number. You could move back a 2 or 3 feet which will give more depth of field and make sure that protruding components as well as the board are all sharp.&nbsp; In case you are not sure what I mean with depth of field, lets say you are focused at the board from 18&quot; away. At a low f stop, your depth of field could be only a 1/2&quot;. So if you are focused on the top of a component, the surface of the board could be out of focus because you only have a 1/2&quot; leeway for what will be in focus at that distance. Move back two feet and that depth will grow to near 2&quot;. Maybe this will help explain better than I can:<a href="http://www.dofmaster.com/dofjs.html" target="_blank">Online Depth of Field Calculator</a> I thought the ebay pictures were bright??? Maybe its my laptop, I get a huge variation depending how I angle my screen.</blockquote>

[QUOTE="nickt, post: 278938, member: 4923"] Yes, aperture is f stop. Higher number means smaller opening. More light required for exposure, but more depth of field (more in focus front to rear of subject) at the higher f number. You could move back a 2 or 3 feet which will give more depth of field and make sure that protruding components as well as the board are all sharp. In case you are not sure what I mean with depth of field, lets say you are focused at the board from 18" away. At a low f stop, your depth of field could be only a 1/2". So if you are focused on the top of a component, the surface of the board could be out of focus because you only have a 1/2" leeway for what will be in focus at that distance. Move back two feet and that depth will grow to near 2". Maybe this will help explain better than I can: [URL="http://www.dofmaster.com/dofjs.html"]Online Depth of Field Calculator[/URL] I thought the ebay pictures were bright??? Maybe its my laptop, I get a huge variation depending how I angle my screen. [/QUOTE]

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