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  1. #11
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,554

    Lightbulb Just for some comparison ...

    Well, just to give you a lighting and IQ comparison, three shots. This uses the pop-up flash.

    Dist: 1 foot (remember: 1-foot is not an option w/ T28-200 f/3.8-5.6 -> min focus dist. 6.9 ft w/o close up adapter)
    50mm f/1.4
    Name:  50mm-f14.jpg
Views: 195
Size:  121.8 KB

    50mm f/1.7
    Name:  50mm-f1.7.jpg
Views: 187
Size:  137.7 KB

    50mm f/4.5
    Name:  50mm-f45.jpg
Views: 186
Size:  200.5 KB


    The idea is to give you some idea of the brightness and sharpness differences between the apertures. Going wide does not mean you are going to have a good image, just brighter ... and usually softer.

    DOF can have some widening if you give the lens some distance, but still, it's really, really tight under f/2.
    Last edited by DonSchap; 09-13-2008 at 08:15 PM.
    Don Schap - BFA, Digital Photography
    A Photographer Is Forever
    Look, I did not create the optical laws of the Universe ... I simply learned to deal with them.
    Remember: It is usually the GLASS, not the camera (except for moving to Full Frame), that gives you the most improvement in your photography.

    flickr & Sdi

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