Title: Sham, Wow!
Product review: Perhaps someone may explain how by affixing a simple tube of 4 1/2" length to the front of a lens with a minimum focus distance of 12", is supposed to produce a usable image. If so, I'd like to hear how it's accomplished. What makes it doubly laughable is that Adorama and Opteka themselves attest to the viability of this, and get this; "OPTIMAL FOCAL LENGTH FOR THIS PRODUCT TO USE, IS 70MM!" What a hoot! My Canon 100mm Macro focuses down to 12", both parties mentioned, advised me to use my 70-200mm, which minimum focus distance is 3.5'. Unless the Opteka HD slide copier had optics of its own, (it does not) how exactly, would that be possible? Rhetorical question, it can't.
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