And it just arrived and I waited patiently for family stuff and connected it to my D7100 body but IT DOESN'T FIT EFFING NIKON LENSES! I shall return it after Christmas and order a http://www.amazon.co.uk/Kenko-1-4X-...igital/dp/B002C6QE00/ref=cm_cr_pr_product_top. Would someone kindly conrfirm that this work with my Nikon body AND lenses? The reviews would indicate "Yes".
Bah humbug!
Thats a real bummer Jonathan, I thought I had read somewhere that the Sigma was compatible with Nikon gear.
I can confirm that the Kenko 1.4 pro 300 works with my Nikon lenses, I am not overly joyed with the performance I have seen from mine so far, but some improvement in my technique might see some improvements in the picture quality that I want.