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Thread: Can you tell the difference ??

  1. #1

    Default Can you tell the difference ??

    Here is a non scientific test conducted for 3 lenses. I try my best
    to be as fair as possible. All the shots are at f5.6, 50mm, focusing at the red shirt centre line. Using the same camera and settings and no PS done. The purpose is to see how sharp your eyes are to differentiate sharpness. Of course if anyone find this thread meaningless, just skip and go, and sorry to have wasted your time. It is purely for the fun of it.

    1)Nikkor 18-55mm f3.5-5.6 (D50 kit lens)
    2)Tamron 17-50mm f2.8
    3)Nikkor 50mm f1.8D

    Which picture you think is taken with 1, 2 and 3 ?

    Picture A


    100% crop of A


    Picture B


    100% crop of B

  2. #2

    Default Re: Can you tell the difference ??

    Picture C


    100% crop of C

  3. #3

    Default Re: Can you tell the difference ??

    I've only used the Tamron, so I really can't say. But here's my guess:

    - A-3
    - B-2
    - C-1

  4. #4
    Senior Member
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    Default Re: Can you tell the difference ??

    Let me try

    A=1 (18-55) near wide open at 50mm, so not optimal.
    B=2 (17-50) stop down to 5.6, i rem last time my copy produces brighter pics also.
    C=3 (50) stop down to 5.6, nikon lenses slightly more contrasty.

    I'm juz doing some quick guessing. Can be wrong. May be front/back focusing problem and copy differences also.

    cameras are not made of tofu

  5. #5

    Default Re: Can you tell the difference ??

    a=1
    b=3
    c=2

  6. #6

    Default Re: Can you tell the difference ??

    A - 1
    b - 3
    c - 2

  7. #7

  8. #8
    Member Mikey73's Avatar
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    Default Re: Can you tell the difference ??

    A - 1
    B - 3
    C - 2

    These are my wild guess.
    Canon EOS

  9. #9
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    Default Re: Can you tell the difference ??

    So what's the verdict?

  10. #10

    Default Re: Can you tell the difference ??

    A: Nikon 18-55mm
    B: Tamron 17-50mm f/2.8
    C: Nikon 50mm f/1.8

  11. #11

    Default Re: Can you tell the difference ??

    my guess simply based on brightness. Know nuts about those lenses

    A - 1
    B - 3
    C - 2
    Shahrul Esa

  12. #12

    Default Re: Can you tell the difference ??

    Quote Originally Posted by Fotophilic View Post
    Let me try

    A=1 (18-55) near wide open at 50mm, so not optimal.
    B=2 (17-50) stop down to 5.6, i rem last time my copy produces brighter pics also.
    C=3 (50) stop down to 5.6, nikon lenses slightly more contrasty.


    Quote Originally Posted by Blur Shadow View Post
    A: Nikon 18-55mm
    B: Tamron 17-50mm f/2.8
    C: Nikon 50mm f/1.8
    Same for me.

    Tamron is a brighter lens, so it goes to Photo B.

    Photo C is more contrasty and sharper, so most likely is the 50mm f1.8.

    Thus, 18-55 goes to Photo A.

  13. #13

    Default Re: Can you tell the difference ??

    My guess

    A: (1) Nikkor 18-55mm f3.5-5.6
    B: (3) Nikkor 50mm f1.8D
    C: (2) Tamron 17-50mm f2.8

  14. #14

    Default Re: Can you tell the difference ??

    A - 1)Nikkor 18-55mm f3.5-5.6 (D50 kit lens)
    B - 2)Tamron 17-50mm f2.8
    C - 3)Nikkor 50mm f1.8D

    B for tamron as it is brighter than the other 2,
    and C for #3 as its sharper off-center, looking at the bedsheets...

  15. #15
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    Default Re: Can you tell the difference ??

    i) A looks like it lacks some fine details that B and C have.
    ii) It seems like the camera exposes similarly for A and C.

    So:
    A - 1
    B - 2
    C - 3

  16. #16

    Default Re: Can you tell the difference ??

    Thanks to all who have responded.
    Keep posting your views and judgement. I will announce the answer on 15 nov at about 10pm.

  17. #17
    Senior Member zac08's Avatar
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    Default Re: Can you tell the difference ??

    A - 1
    b - 3
    c - 2
    Michael Lim
    My Flickr Site

  18. #18

    Default Re: Can you tell the difference ??

    1 - wide open softness
    3 - back blur cum stopped down to 5.6 leh! if picture still blur there's something wrong with ur lens
    2 - stopped down sharpness
    Last edited by mummum; 15th November 2008 at 02:17 AM.

  19. #19

    Default Re: Can you tell the difference ??

    i say its
    1
    2
    3
    "If triangles had Gods, they would be three-sided"
    Flickr|

  20. #20

    Default Re: Can you tell the difference ??

    a - 1
    b - 3
    c - 2


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