Results 1 to 3 of 3

Thread: what does this mean?

  1. #1
    Senior Member denniskee's Avatar
    Join Date
    Oct 2003
    bukit batok

    Default what does this mean?

    i am looking at the comparison of canon 10-22 & tokina 11-16

    when i move in the pointer, beside seeing changes to the numbers & lines, i notice the base color of the chart (white) also changes in the tone.

    for example, when set to 12mm, at f4 & f8,

    1) canon 10-22,
    tone for "centre" chart is lighter than the "mid-frame",
    tone for "mid-frame" & "corner" is similar.

    2) tokina 11-16
    tone remains almost unchanged between "centre" & "mid-frame",
    tone between "mid-frame" & "corner" is similar.

    what does that means? can i say the light fall off of the tokina at 12mm, at both f4 & f8 is much lesser than canon?
    photography makes one sees things from all angles.

  2. #2

    Default Re: what does this mean?

    you can look at vignetting numbers at

    i don't see any numbers or information on the page itself, but it looks like it could be an exposure issue.

  3. #3

    Default Re: what does this mean?

    tokina 11-16

    versus canon 10-22

    for vignetting, looks like tokina 11-16 performs better, i guess.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts