That only works out to a 66mm f1.3.
But great shot, especially for a first try at the technique.
Thank you, how do you find out want it is equivalent to? Also should I try doing this with my 50 1.8 for a more pronounced effect?
Canon 5D MKII, Canon 17-40mm F/4L, Canon 50mm 1.8 II, Helios 44M-4 58mm F/2, Sigma 105mm EX DG Macro F/2.8, Tamron SP 150-600mm F/5-6.3 Di VC USD, Canon 200mm F/2.8L, Yongnuo YN-560 II, S100 with underwater housing