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<blockquote data-quote="Bob Blaylock" data-source="post: 502452" data-attributes="member: 16749">The thread about the Vivitar lens shows this, but perhaps not as well as one would like.&nbsp; It's particularly noticeable to me in the ƒ/8 pair, that the nearest pieces of candy are fairly sharp in the 85mm shot, but still very much out of focus in the 205mm shot.<img src="http://nikonites.com/attachments/education/112813d1410646060-aperture-depth_of_field-relationship-vivitar-85-205mm-f3-8-tele-zoom-dsc_3376.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://nikonites.com/attachments/education/112814d1410646098-aperture-depth_of_field-relationship-vivitar-85-205mm-f3-8-tele-zoom-dsc_3369.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />&nbsp; But the answer is that all other things being equal, a shorter focal length will give you greater depth-of-field, while a longer focal length will give you shallower depth-of-field.</blockquote>

[QUOTE="Bob Blaylock, post: 502452, member: 16749"] The thread about the Vivitar lens shows this, but perhaps not as well as one would like. It's particularly noticeable to me in the ƒ/8 pair, that the nearest pieces of candy are fairly sharp in the 85mm shot, but still very much out of focus in the 205mm shot. [IMG]http://nikonites.com/attachments/education/112813d1410646060-aperture-depth_of_field-relationship-vivitar-85-205mm-f3-8-tele-zoom-dsc_3376.jpg[/IMG][IMG]http://nikonites.com/attachments/education/112814d1410646098-aperture-depth_of_field-relationship-vivitar-85-205mm-f3-8-tele-zoom-dsc_3369.jpg[/IMG] But the answer is that all other things being equal, a shorter focal length will give you greater depth-of-field, while a longer focal length will give you shallower depth-of-field. [/QUOTE]

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