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Telephoto lens has a narrower angle of view,it thus gives apparent magnification to objects,it also seems to compress distant things, and there is less depth of field. The most obvious is to allow photographs of distant organisms to be made.

Specification of our telephoto lens as follow: *25mm,27mm,28mm,30mm,30.5mm,34mm,37mm,43mm,46mm,49mm,52mm,55mm,58mm,62mm,72mm 2.0X telephoto lens;
*37mm 2.5X and 3.0X telephoto lens;
*52mm 3.0X telephoto lens;