Had 2 of these because no one else made a unit for my specific bikes. They do work well are quite easy to fit and set up. But the sensor is of a debatable quality I'm not ham fisted and have had 2 of these quickshifters and had sensors crack on both, supposedly from over tightening can't be so when using correct torque wrench. If your stuck buy one, if you have a choice go the other way.
17 Aug, 2015
Great price quality ease of use a lens for all.
I bought this lens to use at my daughters football games as my current 18-135mm was not long enough, its light the picture quality for me a keen amatuer is great, some of you may want to buy the better L lens, but at such a jump in price please give this a go, its well worth a punt.
CANON EF 2x II EXTENDER LENS + BOTH CAPS + ORIGINAL STORAGE BAG SUPERB CONDITION
24 May, 2016
Canon x2 extender
Bought this to complement a 70-200 f2.8 mk1 non is lens, was advised this combination would not give good results better on later is lens, but hey turns out it works great, just gives me that extra distance pity they don't fit standard lens.