Old Tamron 300/5.6 -- SP sharper than non-SP?

Discussion in '35mm Cameras' started by Greg Lovern, May 27, 2004.

  1. Greg Lovern

    Greg Lovern Guest

    I have an old Tamron 300mm f5.6 -- the 1975 version, not the SP
    version. Is the SP version (1982) of that lens sharper at infinity
    focus?

    I understand the SP version focuses closer, but that isn't important
    to me. If the only difference is the closer focus, I'd prefer the
    non-SP's lighter weight (one less glass element, I think). But if the
    SP is sharper at infinity focus, I might start looking for an SP to
    replace mine.

    Thanks,

    Greg
     
    Greg Lovern, May 27, 2004
    #1
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