Author Topic: Tamron SP 24-70mm f/2.8 Di VC USD G2  (Read 4748 times)

longzoom

  • NG Member
  • *
  • Posts: 769
  • You ARE NikonGear
Re: Tamron SP 24-70mm f/2.8 Di VC USD G2
« Reply #15 on: December 14, 2017, 15:56:12 »
I don't agree with that. Those parameters depend  on the specific part of the frame, distance and focal length and in practice the lighting may change the apparent quality in a lens-dependent way. In my opinion it takes a good while of use (months, preferably distributed over all seasons) in various applications to form an educated opinion.
    My turn be disagree. With your experience (and mine, hah!) you need 2-3 min to judge the file. Sharpness from center to corners, centering of optical elements ,vignetting, color/contrast/CA - what more one needs to judge the lens, before the long run? Of course, if entering test passed, one must spend time to test speed and stability of AF, if not manual, VR and dozens parameters else - it may takes weeks and more. But what the sense to spend time if your copy is decentered above any tolerances, or mushy, if one looks for sharpness, or otherwise? Sorry, but common sense on my side here, I somehow believe! THX!  LZ