Just picked up this electonic remote to help me with my focus pull while shooting video / volleyball games. It has 4 presets, which should work well for where on the court I typically shoot (service, digs, sets and kills). I have tested it on my 5d3 (1dIV and 7d) with a variety of lenses, and while when it works, it works well, but occasionally freezes and needs to be turned on / off to reset.
Anyone else try this...??
1Dx II, 1Dx, 1DIV, 5D3, 7DII, (Sigma 15 FE)
16-35/2.8; 24-70/2.8 II; 70-200/2.8 II, 100-400L
35/1.4II, 40/2.8; 50/1.2, 85/1.2, 135/2; 200/2