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<blockquote data-quote="WayneF" data-source="post: 483948" data-attributes="member: 12496">People ask now and then, about how to determine the distance of an object in a photo.There is now a calculator to do this at <a href="http://www.scantips.com/lights/subjectdistance.html" target="_blank">Calculator to Determine Distance to Object or Subject in an Image</a>You do have to supply several important details:<ul>
<li data-xf-list-type="ul">The real size of the Object, the actual or approximate feet or&nbsp; meters height of it. </li>
<li data-xf-list-type="ul">The lens focal length that the camera image used. </li>
<li data-xf-list-type="ul">The sensor size in the camera, height in both mm and pixels. </li>
<li data-xf-list-type="ul">The size (pixels) of the image of the Object itself. </li>
</ul>There are a couple of techniques discussed there about determining some of this for simple cameras that don't tell us much.</blockquote>

[QUOTE="WayneF, post: 483948, member: 12496"] People ask now and then, about how to determine the distance of an object in a photo. There is now a calculator to do this at [url=http://www.scantips.com/lights/subjectdistance.html]Calculator to Determine Distance to Object or Subject in an Image[/url] You do have to supply several important details: [LIST] [*]The real size of the Object, the actual or approximate feet or meters height of it. [*]The lens focal length that the camera image used. [*]The sensor size in the camera, height in [B]both[/B] mm and pixels. [*]The size (pixels) of the image of the Object itself. [/LIST] There are a couple of techniques discussed there about determining some of this for simple cameras that don't tell us much. [/QUOTE]

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