Your cart is empty.
Your cart is empty. New Viltrox EF-E II mount f/Booster for Canon EOS EF mount lens to Sony NEX E Mount Adapter
Supports auto focus function
Suitable for APS-C camera, 0.71x magnification, +1 f/stop
Same function as Metabones Speed Booster
Detail Information
Viltrox f/Booster series can allow most of the lens to be used E-mount camera bodies mostly Sony's. Thanks to the built-in optical lens (4 elements / 4 groups), it can increase the aperture by one f/stop and extend the focal length. Allowing you to get in the larger area of light and achieve the depth of field that you prefer.
EF-E (the one used for Canon EF lens) is Auto Focus which can't be retained in the other models in this series.
Viltrox f/Booster are quality made using precision-machined aluminium alloy with chromium plating on both of the camera body and the lens side of the booster to ensure smooth and endurable mounting, quality aesthetic.
With optical lens provided by our Japanese partner and a surprisingly attractive price, it is surely a smart choice to choose Viltrox f/Booster.
It can be upgraded by USB port.
Usage of Focus Mode Switch ( PDAF&CDAF ):
1. Before using, please confirm the focus mode of the lens mount adapter, and then attach it on the camera.
2. If you need to change the focus mode, please take the adapter ring off, slide the focus mode switch, and attach it on the camera then.
Specifications:
Lens mount: Canon EF lens
Magnification: 0.71x
Aperture: to be increased by one f/stop
Tripod mount: removable
Optical construction: 4 elements / 4 groups
Disappointed costumer
Reviewed in the United States on May 23, 2025
Probably one of the best adapters out there
Carlos Escutia
Reviewed in Mexico on July 29, 2024
Lo usé con una Sony ZVE10. Funcionó unos minutos y luego la cámara no teconocía el objetivo Canon para tomas de video. Una semana después tampoco funcionó el enfoque automático para fotografía. Y finalmente tampoco en manual, pues la cámara no reconocía el o objetivo. Eso si, mientras funcionó fue maravilloso, aumentando la f y corrigiendo el factor de recorte. Lástima que no fuese compatible con mi cámara.
dogleg
Reviewed in Canada on October 17, 2020
Tried it with my Canon 70-200 - sometimes it works, sometimes it doesn't. With the 100-400, auto-focus didn't work at all. Would not recommend. I will end up buying a couple of native lenses for the Sony. Too bad.
Nevan
Reviewed in Canada on December 3, 2019
Autofocus : Overall the adapter only works best if you have your lens set to AF-S. AF-C leaves more to be desired. But the general pattern with this adapter is that you must to have expensive glass to make this work. A 50mm from Yong Nuo has crappy autofocus in both AF-C and video, but works quite well in AF-S. But a 24-70mm f2.8 Canon has awesome autofocus with AF-S, AF-C and video focusing working quite well (still miss now and then). Video autofocus is a bit noisy, but I usually use no audio or an external mic so this does not concern me.Material Quality: I had put this in rain, snow, heat, in a bag that has tons of stuff that could scratch it - and this thing is still standing with no scratches, water or dust damage. A Solid "A" in this department.Value for money: This depends on the lens you have. If you have crappy third party canon mount lens, then this is not for you. But if you used to be a Canon photographer with really great glass and want to try a sony, this could be a nice adapter to have when testing the sony out.NOTE: I am surprised that this adapter works on the sony A6000, A7, A7ii (sony cameras which usually don't work with adapters). But you have to use contrast AF and only have the focus-area in the center. But hey - it works.
Madstone
Reviewed in Canada on March 23, 2018
Works really well, no issues.
K U
Reviewed in the United States on September 11, 2017
5 stars? Yes. 5. I'll do more field tests on it but the reviews I heard before said it had really bad vignetting on it... completely overblown. (Btw ALL lenses have some form of vignetting) the adaptor was fine. If you're a stickler and you really think that's an issue then don't get it.Also if you for some reason want to use a non native lens on a Sony and expect the same results with ANY adaptor, you're dreaming big... even the metabones struggled to autofocus BUT! Metabones did end up focusing at least... eventually after a try or two. This is terrible for autofocus therefore should not be considered for photography if you're trying to autofocus for photos. Takes waaaaaaay too long (constantly hunting for focus) and when it hits it's usually not focused in the right area.***All of this is outweighed by the price and the rest it provides!!!***Consider that metabones stole the market early on by charging a stupidly high amount of money for a lens adaptor for video (WHICH IS WHAT YOU SHOULD BE LOOKING AT THIS REVIEW FOR)Lens adaptors were never a consideration when I use my canon DSLR bodies (I'm a professional wedding/events/portrait photographer and videographer). But because Sony wants you to pay a stupidly high price for fast glass this is why we are all looking around for other options.Viltrox found a way to basically offer EVERYTHING the metabones speed booster does that you want in your lens adaptor (sans autofocus for video like a native Sony lens)* gives you the same focal length as a full frame on a cropped lens **(I tested photos with this..comparing my 5d mark 3 -full frame vs my Sony 6500) and they basically produced the same image in terms of focal length.** speed boosted!**My canon 2.8 24-70L lens became a 2.0! I can't be happier. Especially when Sony has great focus peaking and works when you switch the lens on the viltrox to Manual.** can change aperture!! **If you have ever bought a cheap lens adaptor as I have to compare: every time I wanted to adjust the lens aperture I had to take it offAnd put it on my canon set it on there and then or it back on. (Apparently some older lenses with the apertures that aren't motorized would basically not matter since you could manually change them).** it's affordable***Again if you're a lens snob or some pixel peeper maybe you'll see how wrong I am and how the metabones is worth the extra $500. But right now this is the price that I have been searching months for!No other lens adaptor has this much for this price. This is why I give it 5 stars. *****It's not perfect. Not even close... it doesn't even make tacos. But for this price I'm seriously looking forward to actually putting my canon L glass on these sonys!
David Chen
Reviewed in Canada on December 12, 2017
Very good! But please use Manual focus.
jfx
Reviewed in the United States on July 29, 2016
First impression - a very high quality item, especially, for the price. Solid design, well thought-out. An obvious Metabones' "Speed booster" knock-off with simpler optical formula, for a lot less money.Second impression - paperwork awful. Come on folks - this is not English. Can you find a person able to write a basic and clear set of instructions in the language of your targeted audience?Third impression - a small watchmaker-style JIS/Philips screwdriver included. What is it for? I am intrigued...4th impression - with two bodies (NEX5R and NEX5T) the following lenses were mounted via the adapter:Canon EF 100mm f/2 USMCanon TS-E 45mm f/2.8Canon TS-E 24mm f/3.5LSigma 12-24mm f/4.5-5.6 EX DG IF HSM AsphericalResults - only the first lens would be able to focus at infinity. The rest - not so, and by a long shot. What's next? Looking at the image parameters seems pointless, as the optical block is out of adjustments or out of spec. Can something be done with the included screwdriver (or my own, much sturdier set of screwdrivers)?OK - I am removing the front flange, hoping to find a set of adjustment shim rings. The lens lock with the little spring - of course pops right out. No shims found. Everything reassembled. Trying to remove the back flange with the same thought - no success.I looked around and found a radially-placed little screw, at the NEX-side of the adapter. Loosening the this screw allowed access to moving the optical block by rotating it in its threaded inner mount. After a couple of minutes I have discovered that I could control the infinity focus, or even make my Sigma 12-24mm f/4.5-5.6 go "past infinity".Next I am proceeding to remove this lens to check my other EF lenses. Alas! The lens is stuck on the adapter. Obviously, the lens lock, as I re-attached the flange got assembled with its little spring partially jammed. Now it would not release the lens. The two have become an assembly that can not be taken apart, as access to screws for either flange is nonexistent. My fault? I suppose...The outcome - I ended up with my Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical "welded" to the adapter, usable only on a NEX body. Only mechanical focus works, aperture can be selected, but closes down only at the moment of the actual exposure. Image quality with this so-so lens seems at least as good as it was on my Canon 5D MkII. Coverage is identical to full frame body, of course, which is the whole point of using one of these "Speed booster" type of adapters.
Recommended Products
