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<p>[QUOTE=&quot;-jeffB, post: 2363096, member: 27832&quot;]I&#039;m trying to adjust my statements to the level of <i>this particular</i> conversation. @<a href="https://www.cointalk.com/threads/how-make-those-extremely-closeups-of-coins.275457/members/tpsadler.9860/" class="internalLink ProxyLink" data-proxy-href="https://www.cointalk.com/threads/how-make-those-extremely-closeups-of-coins.275457/members/tpsadler.9860/">tpsadler</a>&#039;s taking pictures with the aperture stopped down, which led me to believe that he&#039;s at least encountered the concept of aperture and its effect on depth of focus.</p><p><br /></p><p><br /></p><p><br /></p><p>The MP-E is about the furthest thing from a fisheye lens. It zooms in on a tiny field of view. At its maximum 5x setting, you&#039;ll see a swath of your subject one-fifth as wide as your image sensor -- for a full-frame camera, that&#039;s 7.2x4.8mm, or about .3 x .2 inches. And if you don&#039;t stop down, the depth of field at that setting is 0.048 mm; focus on a <i>hair</i> so that its edge is sharp, and its front surface will be starting to show some blur!</p><p><br /></p><p>Actually, I&#039;d put the MP-E more at &quot;99% wouldn&#039;t get much out of it&quot;, even for people who are seriously into macrophotography. I went through a pretty severe gear-head phase a while back, where I ran through several of Canon&#039;s high-end (&quot;L&quot;) lenses. I was seriously interested in macro work, and I looked long and hard at the MP-E, but I decided it was just too specialized and too technically challenging to be worth the money to me -- even though I had a pretty big head about my photography prospects.</p><p><br /></p><p>BTW, I agree completely with your comments about the time and effort we can afford to spend on photos. If you aren&#039;t pursuing photography for its own sake, all this specialized stuff just takes too much time away from actual collecting![/QUOTE]</p><p><br /></p>

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