VILTROX EF-EOS M2 Lens Adapter 0.71x Speed Booster for Canon EF Lens to EOS EF-M Mirrorless Camera M5 M6 M6 II M200 M50 II M10 M50 M100 AF Auto Focus Reducer

NIce product. every M50 user must adapter.

Well I did not buy from Amazon nevertheless sharing my experience. This piece of hardware costs 9700 in offline stores. I am not sure why is Amazon charging another 3000 premium on top of that. Do far the pictures came out nice and soft but I am looking forward to use it with my Tamron 18-400 and see if that extra stop of light really helps or not.

Works great on my canon m50 using a 70-200mm and 16-35mm. Used for around 1-2 months nowPros: Adapter also allows an extra stop in aperture so f2.8 goes to f2.0. Haven’t really noticed any softness in photos with the extra glass.Con: 2 cons so far1. Major con is that if the adapter is left on the camera it will drain the battery in a day or two.2. The connection is a little loose between the camera, adaptor, and lens. But it’s not noticeable unless you actually try and turn the lens.

First the good, it does work for EF lenses. Tested it for 50 1.8, 17-40 F4, and EF 70-300 USM II. I'm using it on a Canon M50.Auto focus works.The bad? There is a significant play on the mount on the camera side. Now the problem with that is because you're using heavy lenses, you would use the tripod mount on the adapter. With the play, its difficult to get that sharp focus... and gets to be very annoying as you'd think at times something broke on the lens...picture quality is a hit and miss....The Canon mount which works on both EF and EF-S do not have the same amount of play. Too bad I did not get a chance to fully test it so my return window already closed.

I wasn’t at all impressed with this product. I don’t know how it got so many 5 star reviews. The focus was constantly drifting even in a well lit environment. The image was a bit distorted and grainy. I returned this item for a refund. There was no problem with that whatsoever. All instructions were in Chinese and it took a long time to arrive though.

Lo utilizo en una Canon M50 II y un lente de Canon EF 50mm f1.8. Funciona muy bien. Recomiendo hacer la inversión en el Canon EF 50mm f1.4, en lugar del f1.8, para sacarle más provecho a este speedbooster. Ya que los demás lentes de Canon con montura EF son bastante más costosos.

Producto de muy buena cálidad, sólo no llegó la fecha estimada, pero es más de amazon y sus envios, y sólo le pediría a Viltrox que empaquetara un poco mejor el paquete ya que venía en una caja muy grande con poco papel, ocasionando que se pudiera mover y estropear; del producto no tengo queja.