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  1. #1
    Join Date
    Feb 2006
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    Des Plaines, IL
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    9,560

    Cool The Di/non-Di 70-300 f/4-5.6 duel

    Through the voluntary submission of Sean's TAMRON AF 70-300mm f/4-5.6 Di LD (Model A17) lens, I am comparing it against the slightly older non-Di version (Model 5720) that I own.

    Initially, the noticeable difference between the two, other than some minor cosmetic changes ...

    Name:  cosmetics-70-300.jpg
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    (make a hell of a pair of binoculars, eh?)

    is that the "older" one -non-Di- (left side) has five contacts and the lens mount is machined aluminum, while the newer one -Di- (right side) has the eight contacts and a plastic lens mount.

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    When mounted and indoors (w/ pop-up flash), the ADI features of the lens become very apparent as identical "Manual" settings provide different exposure results. The camera's internal flash setting (TTL/ADI) is altered and the newer lens indicates the need for more light, based on distance information, not just metering. It is impressive to see it work. In Auto, the entire exposure is re-evaluated for BOTH lenses by the camera, so it is difficult to see any change by the ADI.

    Focus characteristics are basically identical and purple fringe (characteristic of this particular lens) is actually equal between the two, so optically ... shrug.

    This will continue ...
    Last edited by DonSchap; 01-23-2009 at 05:01 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

  2. #2
    Join Date
    Jun 2008
    Posts
    2,204
    really? interesting... I would've thought the older version had a bit more CA (still think it does, especially outdoors). Don't get me wrong, the Di has a lot of CA wide open lol.

    Can't wait to see side by sides.
    flickr

    Canon 7D - 5D | 550EX - 430EX II - (2) PW FlexTT5 | 24-105 f4L | 70-200 f2.8L IS | 100 f2.8L IS | 50 f1.8 II

  3. #3
    Join Date
    Dec 2008
    Location
    Fort Worth, TX
    Posts
    130
    I'm looking to get a telephoto lens with my tax return, would you recommend this lens? (the Di version) I'm considering this or the Sigma 70-300 DG.
    Nikon D40x
    - Nikkor ED 18-55mm f/3.5-5.6 II

    Give me feedback on Flickr

  4. #4
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
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    9,560
    If you can afford it ... the SONY 70-300mm f/4.5-5.6 G SSM is the best lens in this class.

    There was a recent comparison test, that was done ... "Digital Photo Magazine" January 2009. I suggest you do the review.
    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
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,560

    Post ADI flash alteration example

    Manual Settings (both images - only the lens was swapped):
    EXIF: 300mm - f/5.6 - 1/60 sec. - ISO-800 - Pop-up flash - Spot Metering


    Non-Di lens
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    Di lens
    Name:  ADI-Di-70-300-w-pop-up.jpg
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    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

  6. #6
    Join Date
    Feb 2006
    Location
    Des Plaines, IL
    Posts
    9,560

    Post Purple Fringe effect

    I know right where to go when I need purple fringing in my shot!

    Non-Di lens
    Name:  Purple-Fringe-Test-non-Di.jpg
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    Di lens
    Name:  Purple-Fringe-Test-Di.jpg
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    EXIF for both images (distance 10-ft):
    300mm - f/5.6 - 1/125 sec - ISO-400 - AUTO mode -> ADI discounted by default - source lighting: pop-up flash
    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 2006
    Location
    Des Plaines, IL
    Posts
    9,560

    Red face Some preliminary reflections ...

    These results are just preliminary, but they do point out the similarities and differences in performance, under various, yet identical conditions. The ADI improvement is only obvious when the camera is in MANUAL Mode ... AUTO Mode changes the way the camera calculates the image and thereby apparently negates the ADI (flash distance information) effect, as you can see, unlike the "axe" subject, I got effectively an identical exposure with the "medal" subject using it.
    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

  8. #8
    Join Date
    Dec 2007
    Posts
    2,562
    What is ADI?

    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/

  9. #9
    Join Date
    Jun 2008
    Posts
    2,204
    Got a link to that review? I tried searching for it, but digital photo pro only has two stories online regarding "ssm" and they are years old. Was it a review on the 70-300G ssm?
    flickr

    Canon 7D - 5D | 550EX - 430EX II - (2) PW FlexTT5 | 24-105 f4L | 70-200 f2.8L IS | 100 f2.8L IS | 50 f1.8 II

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

    Post ADI with SONY/KM cameras

    Quote Originally Posted by sparkie1263 View Post
    What is ADI?

    Frank

    ADI Flash Metering


    Konica Minolta's ADI(Advanced Distance Integration) flash metering works in combination with the Maxxum 7, D lenses, Maxxum Flash 5600HS(D) and Maxxum Flash 3600HS(D), as well as the built-in flash. When used with these flash units, the camera calculates a guide number to control TTL flash metering. This guide number is calculated according to distance from subject, ambient light and pre-flash reflectivity of the subject and the background. It allows the ADI Flash Metering System to offer optimum flash metering regardless of the background conditions or subject's reflectance characteristics.

    Here is a chart depicting the decision flow:
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    You can ONLY get this from an eight-contact lens, as a five-contact lens eliminates the "distance information."
    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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