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  1. #1
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    Assignment 26 - Sharpness



    For this assignment John (neuroanatomist) has selected the following subject: Sharpness!


    Assignment description by John:


    "No, not that kind (even though I don't mind staring at ISO 12233
    charts!). The subject of this assignment is, literally, things that are
    sharp. Subjects must have an edge or point that is able to cut or
    pierce something. A few small examples below, one each from animal
    (broad-winged hawk), vegetable (rose bush in the garden), and mineral
    (Wüsthof bread knife)."





    The following photos have been selected as favorites, it's now up to you to vote for the best!


    Photo by: Dr Croubie


    Motivation: I like the colors and the use of negative space


    [img]/resized-image.ashx/__size/900x0/__key/CommunityServer-Discussions-Components-Files/26/3365.IMG_5F00_0347rcs900x540.JPG[/img]





    Photo by: Rocco


    Motivation: great subject and composition, just a really cool shot


    [img]/resized-image.ashx/__size/550x0/__key/CommunityServer-Discussions-Components-Files/26/5327.IMG_5F00_8862.jpg[/img]





    Photo by: Matej


    Motivation: I'm a sucker for a thin DoF, and I like the leading lines


    [img]/image_presentation1/resized-image.ashx/__size/720x480/__key/CommunityServer-Discussions-Components-Files/26/4314.IMG_5F00_20110611_5F00_1717_5F00_ap_5F00_web. jpg[/img]





    Photo by: Joel Eade


    Motivation: Great shot of a seriously ugly bird with a wicked beak


    [img]/resized-image.ashx/__size/800x0/__key/CommunityServer-Discussions-Components-Files/26/5270.343V25731.jpg[/img]





    Photo by: Erno James


    Motivation: beautiful composition, and as for sharpness, I've been abraded by flying sand...


    [img]/image_presentation1/resized-image.ashx/__size/427x640/__key/CommunityServer-Discussions-Components-Files/26/4530.dvnp.jpg[/img]


    Congratulations to the selected finalists. Remember in 3 days the votings will end and we'll have a winner!

  2. #2
    Senior Member bob williams's Avatar
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    Re: Assignment 26 - Sharpness



    Ok, I'll Start this one off with


    Splitting hair (the blade is a Japanese Katana crafted between 1480 and 1500 and will still shave the hair on my arm)





    Bob

  3. #3
    Senior Member Andy Stringer's Avatar
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    Re: Assignment 26 - Sharpness

    I thought I was going to have to double-check the AFMA for all my lenses when I saw the subject, but I like your interpretation of sharpness, Neuro.

    Good start, Bob. How big is that blade? Looks like it's sharp enough to cut your arm off, not just your hairs.

    I'll try my luck with this prickly pear cactus from South Plaza island in the Galpagos.

    1D Mark IV, EF100-400mm f/4.5-5.6L IS USM @ 400mm, f//5.6, 1/250s, ISO 400
    Last edited by Andy Stringer; 11-12-2011 at 10:10 PM.

  4. #4
    Senior Member nvitalephotography's Avatar
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    Re: Assignment 26 - Sharpness



    I didn't want to go with the route of a macro shot for this assignment so how about a jet cutting through the air?


    [img]/resized-image.ashx/__size/550x0/__key/CommunityServer-Discussions-Components-Files/26/6283.IMG_5F00_0973._5F00_edit.jpg[/img]

  5. #5

    Re: Assignment 26 - Sharpness



    I'll build on the jet example and throw and arrow being shot through the air in here...










  6. #6

    Re: Assignment 26 - Sharpness



    Adding another image to the cactus theme (thanks Andy)...










  7. #7
    Senior Member bob williams's Avatar
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    Re: Assignment 26 - Sharpness



    Quote Originally Posted by Andy Stringer
    How big is that blade? Looks like it's sharp enough to cut your arm off, not just your hairs.

    Andy, Its total length is 39 inches, exposed blade length is 27.5 inches and yes it would probably cut anything off of a human that you wanted to cut off---it probably already has


    Bob

  8. #8
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    Re: Assignment 26 - Sharpness



    Safety Disclaimer? What's that?


    [img]/resized-image.ashx/__size/900x0/__key/CommunityServer-Discussions-Components-Files/26/3365.IMG_5F00_0347rcs900x540.JPG[/img]
    An awful lot of electrons were terribly inconvenienced in the making of this post.
    Gear Photos

  9. #9
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    Re: Assignment 26 - Sharpness



    Dr...


    I knew it was only time before we saw blood.....

  10. #10

    Re: Assignment 26 - Sharpness



    The angles and texture on this one always felt "sharp"


    Koln, Germany 18mm, f4.5, 1/50, 100


    [IMG][View:http://i291.photobucket.com/albums/ll312/kitane12_12/IMG_0495.jpg][/IMG]

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