A message from MXcamera (creator of electronic EF to E-mount adapters)
A couple of weeks ago I posted the video (you can see again here on top) showing a new Canon EF to NEX E-Mount adapter. It supports full electronic aperture and focus control on Canon EF lens! And finally you can find that adapter for sale on eBay (Click here). The makers of the adapter now contacted me and I am posting their message here:
“We saw our product and video in your website! We are so happy about that!! We are now developing the Contax G to Sony NEX adapter with AF function and it is almost finish. We will update the information to you very soon.Some people email us about Nikon G to NEX (AF support) adapter. We will start this project around November(after Contax G to NEX AF adapter) and we think we will finish it before April 2013.”
It’s nice to have a direct contact with those guys. Usually we all have a bit of fear when buying expensive stuff from unknown Asian stores 
Here are the contacts of the producer in case you want to get some more info:
Lau
MXcamera
eBay Store: zhuomingcamera.
YH Store : http://hk.user.auctions.yahoo.com/hk/booth/mxcamera_hk
Web Site : http://mxcamera.com/
face book: https://www.facebook.com/mxcamera
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Freddo
9 months ago |Wow, Contax G to NEX adapter with full AF?!? I will buy that one for sure!
david
9 months ago |Why the hell doesn’t anyone make these adapters for the Alpha mount???
E
9 months ago |Because Sony has three?
Steve Jones
9 months ago |Because it’s optically impossible without putting in extra elements (which would damage IQ) as the registration distance of the A mount is just too long for almost all other 35mm mounts. For example, Canon’s EF mount is 0.5mm shorter, and even where there are others with longer mounts, like Nikon’s F mount, the extra 2mm is hardly enough to allow for the extra space of an adapter. If any such adapter was produced without compensating optical elements, you simply wouldn’t be able to focus at infinity (or, in practice, anything more than a few tens of metres away at best).
It can be done with the T mount, but that’s hardly designed for fully automatic operations.
Steve Jones
9 months ago |nb. I should add it would be theoretically possible for Sony to produce a camera with a “universal” FF short register mount which could, with the right adapter, use any of the mainline 35mm legacy mounts. Indeed, some might argue that it could be done with E mount, albeit that the tolerances would be very tight indeed due to the throat diameter on E mount being only just sufficient for FF.
Also, trying to provide full electronic and firmware compatibility with all those mounts would be a huge challenge, especially if it was to make optimal use of more advanced features (as you can see when trying to get lenses optimised for PAF working with CAF).
John Maverick
9 months ago |Because flange distance. It’s a fundamental advantage of NEX, that SONY needs to fully exploit.
Woodent
9 months ago |damn! why did I have to sell that Contax G system in favor of same galss from Zeiss but for Leica M mount
Timmy Fox
9 months ago |This
waldomarek
9 months ago |seemed like it took it an awful long time to auto focus? and wow @ the zooming sound.
EcoR1
9 months ago |The focusing is awful. This demonstrates pretty well, why non-stepper motor lenses (pretty much all existing autofocus-lenses for mirror-cameras) are not really compatible for mirroless cameras: contrast-based detecion method used on mirrorless cameras require lens motors capable of precise fine movements.
Simple truth is that mirroless cameras require lenses that are designed for them if you want to use tolerabe autofocus. Manual focusing is of course another matter and so is the LA-EA2-adpter that consists PDAF-sensors in the adapter.
Utama
9 months ago |Does it support PDAF?
Carl
9 months ago |I’d be so hard for a Minolta Vectis to NEX AF-adaptor. It’d be nice to finally be able to fully use my 17mm and 50mm.
E
9 months ago |Count me in! Getting use of the 80-240 would be nice!
E
9 months ago |Is there any public information on the Vectis mount communication?
Carl
9 months ago |The 25-150mm would be a nice alternative to the bulky 18-200s as well.
I don’t think any reverse engineering work has happened in the English speaking world. I wouldn’t be surprised if the people on minolta-forum.de have at least had a look, but I have pretty abysmal German so it’s hard to tell. Being a Minolta format it’s quite possible that it is similar to A mount, which is somewhat known, and would allow the LA-EA adaptors to be used as a base.
There have been a few people who have hacked Vectis lenses on a NEX in a non-electrical way (http://vimeo.com/49058896, http://www.photoclubalpha.com/2010/07/30/fitting-a-vectis-80-240mm-to-the-nex/), but of course the holy grail is autofocus and autoaperture.
MdB
9 months ago |About as fast as you could expect… almost exactly the same as Live View AF on a Canon DLSR – I know people on here complain about SLT and EVFs, but this is where SLT stuff really has a huge advantage and something that can not be quantified looking at the ‘specs’ of other DLSRs. I am obviously NOT talking about the optimisations made for true mirrorless designs, I am talking about using CDAF with lenses designed for PDAF which is the case for ALL other SLRs (including the D650 largely as well).
Sony said a long time ago that they didn’t want to do Live View until they could do it ‘right’. They somewhat succeeded with the dual sensor system, but I suspect this always took too much space to ever be implemented on pentaprism viewfinders (we never saw it on a 7 or 8/9 series). So for everyone who complains about SLT, think about this being your live view experience if Sony kept making DSLRs with optical viewfinders. Personally I don’t ‘dig’ EVFs, but the advantages of SLT are far too broad, it isn’t just comparing the quality of the viewfinder image – it is everything else that it brings along with that ‘slight’ lag and drop in DR and resolution!
PEEGlit
9 months ago |Big deal about the Canon glass blahhh. I just dont care for canons colors. The contax af adapter sounds awesome.
twhuan
9 months ago |It would be amazing if they can fit the electronics and motor in such little space available in the contax g to e adapter.*thumb up* please make sure it supports the g21!
Andrejew
9 months ago |This shows it is definitely possible to create a la-ea3 or 4 adapter without any mirrors between but pdaf!!! Great news. Want to use alpha lenses on nex-6, 7,8 or even 9 with pdaf without mirror !!!
MdB
9 months ago |How exactly does it show that? NEX system already had 2 adapters without mirror (LA-EA1 & LA-EA3) and that means nothing about using on sensor PDAF with Alpha mount lenses (as much as I wish it would). The LA-EA1 has been able to do for Alpha lenses what this Canon adapter does for EF/EF-S lenses for years now.
John Maverick
9 months ago |I’ve got one Contax G lens (the 90mm/2.8) at the moment. An AF adaptor would be a tasty incentive to pick up the biogon 28mm and sonar 45mm. How good would they be with a full-frame NEX. Please SONY build the camera, and we will follow.
shinbone
9 months ago |Contax G glass is awesome, and I have the full suite of G lenses.
I have been holding off buying a NEX camera due to the minimal lense selection (which is slowly getting better), and feeling frustrated by Sony’s lack of lenses for their great cameras. But when the adaptor becomes available, lense selection will no longer be an issue to me due to my Contax G collection.
I still need to decide which NEX camera I will be getting, but I will buy a NEX camera and the adaptor when the adaptor becomes available.
Zony
9 months ago |More price increases for the Contax G lenses. Damn. Didn’t need that. AF for my Contax G 45mm- that news has made my day.
Mart
9 months ago |Hey, he should take a photo on the video to show us, he is just trying to focus halfway at somewhere sharp quickly release his hand at that point that seems to be sharp. Seems like if he continue to press on the shutter longer to take that photo, it may get defocus again. Pay for an expensive product that may not work, I will only convince if a video on this adapter tested on a long range 300mm lenses focus on a far object with a photo taken.
Mistral75
9 months ago |Another one, by Yi Neng / Yeenon this time:
http://www.ebay.com/itm/Yeenon-EOS-lenses-to-NEX-body-EOS-NEX-Auto-Focus-Adapter-With-tripod-socket-/261114673611?
adam
9 months ago |I don’t think it is possible to do autofocus with contax G, which has screw type focus. Where are they going to put motor to wind that screw automatically.
TGA
9 months ago |Attention folks!
E-mount is now proven to support full frame sensors as well (VG900) but beware, the current Canon smart adaptors are not prepared yet for that job!
I asked MXcamera directly and they answered this: “I am so sorry that we think it cannot use it on full frame Sony camera (like VG900). This is for APS-C size only.”
Metabones’ 2nd generation smart adater is not apt for FF either:
see note nr. 5 on their own page: http://www.metabones.com/sony/buy-eos-nex-adapter
This adapter has a circular opening whose diameter is not big enough to cover a full-size 36mm x 24mm sensor. Lenses with a maximum aperture of f/2.8 or slower are supported but faster lenses will run into vignetting issues at corners.
Rex L
8 months ago |Hi SAR. The listing for this product, New Canon EF / EF-S / Lens to Sony NEX E Mount Adapter on eBay has ended but I’d like to purchase the product. Do you happen to know when will it be available?… and please let them know about my willingness to purchase. Thanks.
admin
8 months ago |On Thursday! I will link to it when it starts!
skeudenn
8 months ago |I received the adapter yesterday and use it on a nex3. It does work and af, with a little practice and patience. Tested on 55-250 efs is, 50mm f1.8 ef, 15-85 efs is. The trick is to make if focus WHERE you want to. ( I am an a77 user…)
af is not available in video mode though