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Thread: Do I need to use L lens to achieve sharp picture?

  1. #1
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    Default Do I need to use L lens to achieve sharp picture?

    Owner of 350D for > 1 year and has been using the kit lens to do all shooting. However the pictures taken using the kit lens has been disappointing despite using the following setting:

    > AutoFocus
    > Av model with apeture size F8-F10
    > tripod (not the high end type though)
    > timer to trigger shutter release
    > ISO setting 100

    The picture always turn out to be little OOF. Wondering it this the limitation of the kit lens? Upgrade to L lens? So just PP is enough to make the picture look sharp? Hope to get some advice. Thanks in advance.

  2. #2

    Default Re: Do I need to use L lens to achieve sharp picture?

    Possible cuase sinclude subject movemment, mirror slap vibration and/or the subject being too close to the lens.

    Another cause might be that the lens and body are mis-calibrated but givine the small apperature i would suspect the first few reasons..
    Furry Photos - Photography for the Modern Pet

  3. #3
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    Default Re: Do I need to use L lens to achieve sharp picture?

    erm OOF? might be some problem with ur kit lens. as for blurrness there might be a few reason such as lousy optic/ not enough DOF/ OOF/ handshake blur. you gotta know which is the cause, if it is not enough DOF or handshake blur, it pointless even if you change to the most expensive lens.

  4. #4

    Default Re: Do I need to use L lens to achieve sharp picture?

    Quote Originally Posted by deTour
    Owner of 350D for > 1 year and has been using the kit lens to do all shooting. However the pictures taken using the kit lens has been disappointing despite using the following setting:

    > AutoFocus
    > Av model with apeture size F8-F10
    > tripod (not the high end type though)
    > timer to trigger shutter release
    > ISO setting 100

    The picture always turn out to be little OOF. Wondering it this the limitation of the kit lens? Upgrade to L lens? So just PP is enough to make the picture look sharp? Hope to get some advice. Thanks in advance.
    post some examples let us see?

  5. #5

    Default Re: Do I need to use L lens to achieve sharp picture?

    Hi DeTour,

    Maybe you have a bad copy? The kit lens is not so contrasty but sharpness is generally good when you stop down.

    Two sample test pic with the kit lens (Ignore the poor composition, distortion and for being uncorrected, testing only)






    Maybe you wanna try out my kit lens and compare to see if yours really off? If so, PM me.
    Last edited by ianpaice; 12th September 2006 at 04:40 PM.

  6. #6
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    Default Re: Do I need to use L lens to achieve sharp picture?

    Quote Originally Posted by ianpaice
    Hi,

    Maybe you have a bad copy? The kit lens is not so contrasty but sharpness is generally good when you stop down.

    One sample test pic with the kit lens.

    looks ok to me....

  7. #7
    Moderator ortega's Avatar
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    Default Re: Do I need to use L lens to achieve sharp picture?

    Quote Originally Posted by deTour
    Owner of 350D for > 1 year and has been using the kit lens to do all shooting. However the pictures taken using the kit lens has been disappointing despite using the following setting:

    > AutoFocus
    > Av model with apeture size F8-F10
    > tripod (not the high end type though)
    > timer to trigger shutter release
    > ISO setting 100

    The picture always turn out to be little OOF. Wondering it this the limitation of the kit lens? Upgrade to L lens? So just PP is enough to make the picture look sharp? Hope to get some advice. Thanks in advance.
    what is the shutter speed?
    could be due to camera shake

    try a picture on a bright sunny day with the light falling on your subject
    ISO 100
    aperture F8
    shutter speed at least 1/focal lenght
    mount on sturdy tripod

    if still OOF then try a different lens or Manual focus
    BTW canon is known to be a little softer than nikon

    best is to post a sample untouched picture for us to see

  8. #8

    Default Re: Do I need to use L lens to achieve sharp picture?

    TS can try take some photos at the settings with mirror lockup function. if still blur then is bad copy le.
    random equipment.
    where are my primes?

  9. #9
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    Default Re: Do I need to use L lens to achieve sharp picture?

    Thanks all for the advice.

    try a picture on a bright sunny day with the light falling on your subject
    ISO 100
    aperture F8
    shutter speed at least 1/focal lenght
    mount on sturdy tripod
    Will try the above and post a sample picture.

  10. #10

    Default Re: Do I need to use L lens to achieve sharp picture?

    you can always use photoshop USM
    a700 | dynax7
    sigma12-24/minolta28-135/sony70-300g/sig400/lensbaby2.0

  11. #11

    Default Re: Do I need to use L lens to achieve sharp picture?

    make sure you've covered all your techniques first before you blame the equipment.
    if my camera is there at the right moment, click, all I have to do is accept it.
    -edouard boubat

  12. #12
    Senior Member +evenstar's Avatar
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    Default Re: Do I need to use L lens to achieve sharp picture?

    canon has this low pass filter in front of their sensors which is known to soften images a little
    eat. drink. shoot

  13. #13
    Moderator catchlights's Avatar
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    Default Re: Do I need to use L lens to achieve sharp picture?

    Quote Originally Posted by +evenstar
    canon has this low pass filter in front of their sensors which is known to soften images a little
    which digital cameras don't have low pass filter?
    Shoot to Live, Live to Shoot
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  14. #14

    Default Re: Do I need to use L lens to achieve sharp picture?

    Quote Originally Posted by dr34mc4st3r
    you can always use photoshop USM
    just wondering how did the film SLR users achieve sharp images from their L lenses then?

  15. #15

    Default Re: Do I need to use L lens to achieve sharp picture?

    Its called skill mah...

  16. #16

    Default Re: Do I need to use L lens to achieve sharp picture?

    Maybe you can try unsharpen mask.

  17. #17
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    Default Re: Do I need to use L lens to achieve sharp picture?

    Below is the sample picture taken with my kit lens with the recommended settings:

    Aperture F8
    ISO 100
    Shutter speed 100
    Picture taken with tripod
    Date Time 13-9-06 1310hrs

    #1 Original Picture - only resize such that <100K inorder put into CS gallery



    #2 Picture with PP - Adjust level and apply unsharp mask

  18. #18
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    Default Re: Do I need to use L lens to achieve sharp picture?

    #3 Original picture without resizing

  19. #19

    Default Re: Do I need to use L lens to achieve sharp picture?

    Quote Originally Posted by GmbH.
    just wondering how did the film SLR users achieve sharp images from their L lenses then?
    Scan then USM. Of couse shooting with slides does help
    Furry Photos - Photography for the Modern Pet

  20. #20
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    Default Re: Do I need to use L lens to achieve sharp picture?

    Quote Originally Posted by deTour
    #3 Original picture without resizing
    looks ok to me. i think what you are looking for is CONTRAST... not that much of sharpness.

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