D5100 with 18 140mm
i bought the new lense 18 140 mm for my D5100 but actually I didn't find a noticeable difference from the 18 55 mm
my question is :- is this lense was introduced for the new Models D7100,D5300 ,D5200 rather than my D5100?
i.e it won't make a difference on my camera ?
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