what causes "glowing"?

Discussion in 'Macro Photography' started by Ganoderma, Aug 16, 2009.

  1. Ganoderma

    Ganoderma TPF Noob!

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    once again, i am having troubles lol.

    playing around some more with the sigma 70-300 lens (aka "the cheapy" as my wife calls it).

    i am finding myself getting what i want but most of the pictures have this bluing glow type thing to them.

    here are some pics i just took now to show. mind you they were hand held at night under medium fluorescent lighting, but the glow happens a fair bit in different situations, even with tripod/remote stillness.

    example 1 cactus spines
    iso 200
    f/5.6
    263mm
    1/20sec
    used flash.

    [​IMG]



    example 2 cactus seeds.
    iso 200
    f/5.6
    263mm
    1/20sec
    used flash....thinking this has to do with the problem...?
    [​IMG]

    cropped
    [​IMG]



    another question. i used a white lit box (used for growing seedling plants) and took a pic of various cactus....i used tripod/remot and mirror lockup and took dozens of pics and still not super fine detail.....i am at a loss now :(
    i see some excellent pictures of say a bumble bee, and the hairs are in nice detail on said bee....but i cannot (with this one lens) seem to get that kind of detail.

    example
    iso 100
    f/6.3
    1/25sec
    [​IMG]


    any thoughts as to what im doing wrong?
     
  2. BoostedHoo

    BoostedHoo TPF Noob!

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    are you using external flash or on board pop up flash?
     
  3. Josh66

    Josh66 Been spending a lot of time on here!

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  4. Sw1tchFX

    Sw1tchFX TPF Noob!

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