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<p>[QUOTE=&quot;jtlee321, post: 2535860, member: 73983&quot;]Wow!!&nbsp; I am impressed.&nbsp; This lens would make an excellent back up to my 75ARD1.&nbsp; The price is right and would make an excellent primary lens for anyone just assembling a setup.&nbsp; Ray your research and sharing of your findings is greatly appreciated.&nbsp; It is obvious that you enjoy what you do and I for one want to thank you.</p><p><br /></p><p>On the subject of this lens, my guess is this particular lens is best suited on an APS-C sensor rather than a full frame due to the longer focal length?&nbsp; Have you tried it on a sensor without an antialiasing filter?&nbsp; I&#039;m shooting a Nikon D800E which although the antialiasing filter is not removed but rather it&#039;s effects are canceled optically, is nearly the equivalent of not having one.&nbsp; I have found that the sharpness of the 75ARD1 is incredible at 36MP, which is an unforgiving resolution.</p><p><br /></p><p>On the subject of focal length.&nbsp; I find it slightly difficult to shoot subjects much larger than a PCGS or NGC slab with the 75ARD1 with my current setup.&nbsp; My maximum working distance is about 10 inches with the 75ARD1 which gives just enough coverage to shoot a slab.&nbsp; I have a Tominon 135mm which I use for subjects such as currency, but then my minimum working distance is pushed to my maximum extension on my rig which is close to 24 inches on a Bogen copy stand.&nbsp; With the focal length of the 89PE being a factor, would it be a worthwhile investment to replace the Tominon?&nbsp; I would prefer a shorter working distance than the Tominon currently provides, but what kind of FOV would the 89E give compared to the 75ARD1 at comparable working distances?&nbsp; I hope my question makes sense.&nbsp; Morning&#039;s are not my strong suite for compiling thoughts.&nbsp; Thanks again Ray.[/QUOTE]</p><p><br /></p>

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