David Garth
Leading Member
I’ve owned my 16-80 for about a year and I’m quite satisfied with it. But recently a friend asked for my help deciding whether he should buy the 16-80 or the 16-55. He was concerned mostly about sharpness and not size or weight.
I’ve never owned or used a 16-55. I knew that many people feel the 16-55 is sharper. I was curious if this was measurable, or if it were conformational bias because 16-55 owners have typically spent a lot more money on them.
I went to the three most respected lens test sites and assigned a numerical rating to their sharpness ratings, but only on those important areas where they overlap—f4 to f8 and 16mm to 55mm. To my surprise, after I did the math, they came out almost exactly equal. (The 16-80’s weakness at 80mm didn’t factor in, since it’s kind of a bonus.) It appears both are good, but neither is “prime sharp” which is typical for wide to tele zooms. (Another surprise: At 16mm, the very cheap and light 15-45 is actually sharper than both of them.)
Thoughts?
I’ve never owned or used a 16-55. I knew that many people feel the 16-55 is sharper. I was curious if this was measurable, or if it were conformational bias because 16-55 owners have typically spent a lot more money on them.
I went to the three most respected lens test sites and assigned a numerical rating to their sharpness ratings, but only on those important areas where they overlap—f4 to f8 and 16mm to 55mm. To my surprise, after I did the math, they came out almost exactly equal. (The 16-80’s weakness at 80mm didn’t factor in, since it’s kind of a bonus.) It appears both are good, but neither is “prime sharp” which is typical for wide to tele zooms. (Another surprise: At 16mm, the very cheap and light 15-45 is actually sharper than both of them.)
Thoughts?






