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PB PM
Sneaky Punk
 
Join Date: Oct 2005
Location: Vancouver, BC
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2011-03-01, 15:43

Practically speaking there is no difference between those two. Nobody is going to notice a minuscule 390g difference if they are out shooting all day long.

As for why the Alpha mount 18-200 and E mount 18-200 are very similar, is likely due to the fact that the optics are the same or very similar. The only practical way to make things smaller and lighter is with short pancake primes (Olympus 25mm f2.8, Samsung 17mm F2 etc).
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