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  1. #1
    Join Date
    Dec 2007
    Posts
    2,562

    Is the Sony A 100 capable of taking IR

    Can you take IR shots with the A100. I saw some shots and would like to try it.
    I tried the remote test but it didn't seem to work.
    Thanks
    Frank
    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

  2. #2
    Join Date
    Feb 2007
    Posts
    28

    Smile Yes

    I can confirm that you can take IR images with the Sony Alpha A100.
    You just need an IR filter, like the Hoya R72 filter. You will need a tripod though, as the exposure times are pretty long.

    This photo was taken with ISO 100, f11 and a 62 second exposure:


    You could bump the ISO and have a faster aperture to get a shorter exposure but it will still be hard to hand-hold it.

    Cheers,

    Jonathan
    Last edited by JonathanJ; 06-24-2008 at 12:19 PM.

  3. #3
    Join Date
    Dec 2007
    Posts
    2,562
    Great image.
    Frank
    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

  4. #4
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,560
    I'd have to say that looks pretty conclusive ... time to buy the filters, Frank.
    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

  5. #5
    Join Date
    Dec 2007
    Posts
    2,562
    I am going to check ebay.
    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

  6. #6
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,560
    Well, the 62mmų R72-filter runs around $81

    I would choose that one just to milk the 18-250mm, 28-300mm and 70-300mm range out of the TAMRON lenses (all three have a common 62mm filter-ring). It would seem to be the bargain size.

    All my other lenses are too limited in their focal length and at:

    $40 (49mmų, 52mmų, 55mmų) most prime lenses
    $81 (62mmų, 67mmų) these two cover most of TAMRON's lenses
    ~$283 (72mmų, 77mmų) each (depending on size) ultra wide-angle

    I would really want the most bang for my buck!

    Some of the more popular current TAMRON Lenses have the following ų filter rings:
    • 11-18mm f/4.5-5.6 = 77mmų
    • 18-250mm f/3.5-6.3 = 62mmų
    • 17-50mm f/2.8 = 67mmų
    • 28-75mm f/2.8 = 67mmų
    • 28-300mm f/3.5-6.3 = 62mmų
    • 28-300mm f/3.5-6.3 VC = 67mmų
    • 70-200mm f/2.8 = 77mmų
    • 70-300mm f/4-5.5.6 = 62mmų
    • 90mm f/2.8 MACRO = 55mmų


    So, I guess the heat's on!
    Last edited by DonSchap; 06-24-2008 at 08:48 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

  7. #7
    Join Date
    Feb 2007
    Posts
    28

    I got a cheaper generic IR filter

    Hello,

    I actually got a cheaper generic 62mm IR filter from this seller on eBay, it works fine, is metal and feels okay.

    It cost me $35 including postage, which seemed pretty good.

    Hope that helps.

    JJ

  8. #8
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,560
    Hey, now that's a pretty good bargain. They, unfortunately, do not have the 62mmų R950 IR-filter. Ah, shucks.

    I was wondering, JonathanJ ... any trouble with sharp autofocus? Or does this reduce you to manual focus?
    Last edited by DonSchap; 06-25-2008 at 10:47 AM.
    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

  9. #9
    Join Date
    Feb 2007
    Posts
    28
    Hi Don,

    So the way I set up the shot above was to frame and auto-focus it on the tripod without the filter on, then attached the filter, switched to manual focus so that it wouldn't go searching again and used my remote shutter release to hold it in bulb mode for 62 seconds.

    The focus does change slightly with the IR light, but for a stopped-down landscape like this one, it didn't matter too much.

    I tried doing a similar thing to take an IR Macro shot, but a good focus is harder to achieve there. More trial and error with manual focus.

    Cheers,

    Jonathan

  10. #10
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,560

    Cool Dark filters

    Yep ... I kind of figured there would be a decent type of drawback to a filter like that.

    I may just get one of the cheaper ones, to try this level of photography out. If I like it, I'll improve the quality of the filter.

    With Photoshop, I created this pseudo-Infrared image of a courtyard sculpture at Oakton Community College ...for class:



    It may not be a real IR shot, but by God ... you sure can shoot it a lot faster!
    Last edited by DonSchap; 06-25-2008 at 08:04 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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