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  • Dear ZJ2000,

    I need to ask something before decide to buy the tubes & TC

    If only use Kenko Uniplus 25mm extension tubes, how much loss of light will occur ? Only 1 stop ? (from f/2.8 --> f/4 ? )
    If only use Kenko Pro300DG 1.4x TC, the loss of light also 1 stop ?

    So if use Uniplus 25mm extension tubes & Pro300DG 1.4x teleconverter together, the total loss of light will become 2 stops ? (from f/2.8 --> f/5.6) ?

    Is it correct ?

    Thank you,
    Jeff
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