4 Comments

  1. […] Well after last night’s astrophotography session with a 400mm f/5.6 lens, and 3× teleconverter, I decided to try again with an even longer optical system. […]

  2. Frode
    2/28/2013
    Reply

    Hi, what’s the name of the tripod mount collar you are using on the tokina 400mm?

    I got the same lens and looking for a mount for it.

  3. Frode
    2/28/2013
    Reply

    Thank you every much :)

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