Amazon Lightning deal, ends 06/02/15 @ 11pm (or until 100% claimed).
Canon and Nikon versions listed.
Canon:
http://www.amazon.co.uk/dp/B007RKL1...EX7MPTMJE63SJ22Z&pf_rd_i=20&pf_rd_p=577138707
Nikon:
http://www.amazon.co.uk/dp/B007VAZB...EX7MPTMJE63SJ22Z&pf_rd_i=20&pf_rd_p=577138707
Canon and Nikon versions listed.
Canon:
http://www.amazon.co.uk/dp/B007RKL1...EX7MPTMJE63SJ22Z&pf_rd_i=20&pf_rd_p=577138707
Nikon:
http://www.amazon.co.uk/dp/B007VAZB...EX7MPTMJE63SJ22Z&pf_rd_i=20&pf_rd_p=577138707