hello, just got the tamron 28-75 f2.8 today... still very inexperienced, so hoping anyone can help to see whether my copy is ok... or rather, performing as expected..
here are reviews im judging my lens upon..
photozone:
http://www.photozone.de/8Reviews/lenses/tamron_2875_28_nikon/index.htm
bob atkins:
http://www.bobatkins.com/photography/reviews/tamron_28_75b.html
100% centre crops (focus point just above the white oval sticker):
28mm f2.8, 28mm f4
28mm f5.6, 28mm f8
this lens known to be softer @ 28mm wide open, but by f4 supposed to sharpen a lot..
50mm f2.8, 50mm f4
75mm f2.8, 75mm f4
similarly for 50mm & 75mm, sharpness supposed to improve from f2.8 to f4 (though not so drastic)..
erm.. so is my lens' sharpness to par? or is there something wrong?
here are reviews im judging my lens upon..
photozone:
http://www.photozone.de/8Reviews/lenses/tamron_2875_28_nikon/index.htm
bob atkins:
http://www.bobatkins.com/photography/reviews/tamron_28_75b.html
100% centre crops (focus point just above the white oval sticker):
28mm f2.8, 28mm f4
28mm f5.6, 28mm f8
this lens known to be softer @ 28mm wide open, but by f4 supposed to sharpen a lot..
50mm f2.8, 50mm f4
75mm f2.8, 75mm f4
similarly for 50mm & 75mm, sharpness supposed to improve from f2.8 to f4 (though not so drastic)..
erm.. so is my lens' sharpness to par? or is there something wrong?