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Redrock Micro creates Canon EF to MFT adapter with aperture control

By dpreview staff on Sep 30, 2011 at 00:54 GMT

DSLR video accessory specialist Redrock Micro has created a Canon EF to Micro Four Thirds lens adapter. The LiveLens MFT adds the electronics required to control the aperture on the mounted EOS lenses. A 9V battery and a touch-panel allows the adapter to specify the lens aperture in 1/3EV steps. The adapter costs $442.50 and is available directly from the manufacturer's website. (Via Photography Blog)

Press Release:

Redrock Micro's New LiveLens MFT™ Delivers Canon EF Lens Compatability for Micro Four-Thirds (MFT) Cameras

Razor-Sharp Canon Lenses Usable on MFT Bodies such as Panasonic AF100, GH2

Hollywood, CA and Dallas, TX - Redrock Micro, the recognized leader in affordable professional-grade cinema accessories, announced today the release of the new Redrock Micro LiveLens MFT™. The LiveLens MFT is the first active lens mount to allow Canon EF lenses to be used with any micro four-thirds camera body, including the Panasonic AG-AF100, Panasonic GH2, and Olympus E-P3. Now, the exceptional sharpness and clarity of Canon optics can be mated with the compact, powerful capabilities of micro four-thirds cameras.

Small Lens Adapter with Big Capabilities

Redrock Micro's LiveLens MFT provides the required power and electronics to control Canon EF lenses when attached to a micro four-thirds camera body. With the LiveLens MFT's control touchpad, the EF lens' aperture can be open and closed in increments as small as 1/3 stop. The LiveLens MFT works with virtually every EF lens available today, including variable aperture zoom lenses, prime lenses, consumer-level lenses, professional L-series lenses and most third party EF-compatible lenses. A marvel of advanced design, the LiveLens MFT is incredibly compact and weighs less than 6oz.  

LiveLens MFT uses Canon lens control technology proven for over three years in professional productions. For operators and DPs who have invested in Canon EF lenses and want to extend their investment to MFT cameras like the AF100, LiveLens MFT is an invaluable tool.

Pricing and Availability

Introductory pricing for the LiveLens MFT is $442.50. Redrock Micro's LiveLens MFT is a limited edition product and is available immediately. LiveLens MFT can be purchased direct from Redrock Micro at  redrockmicro.com/livelensmft.

Comments

Total comments: 63
CJ Lan
By CJ Lan (Mar 27, 2012)

(cont.)

(2) You need to experiment the size of hole to avoid vignetting. The first ring I have made/used is the hole that will give me one stop down of the light, which means the diameter of the ring hole is 1/sqrt(2) of the diameter of the adapter flange attached onto the camera. This cheap adapter with home-made ring serves me well. I do not notice degrading in image quality.

You might wonder how many sizes of rings one needs to make and it will be inconvenient to swap them. In fact, for micro 4/3 cameras, the sweet aperture is around f4-f5.6. Too small ring hole should be used with caution to avoid diffraction limits and loss of sharpness. Therefore, so far, I have only used one fixed size ring mentioned above, which gives me one stop down of light. I also found it is useful to avoid shutter speed go out of ceiling (1/4000 for my Oly EPL2), in particular under bright sunlight.

0 upvotes
CJ Lan
By CJ Lan (Mar 27, 2012)

Some Canon lenses such as EF-S 10-22mm could NOT work with the adapter with built-in aperture control, due to the extruding rear element. This happens to be one of my favorate lenses. What should one do? Well, here is the poor man adapter. Simply buy the simple Chiese-made adapter (w/o aperture control) around $15 bucks and then attach a home-made ring.

Several coveats though:

(1) ring needs to be higher quality plastic otherwise you will leave lints around th edge after you cut it into shape. You do not want the lints to get onto sensor or inside the camera body. It is also preferrable to use black, non-reflective material to avoid internal light refection.

(cont.)

0 upvotes
Charles Chien
By Charles Chien (Oct 15, 2011)

A little more than 11 years ago, I suggested that Sigma could do something similar to this adapter here (see http://forums.dpreview.com/forums/read.asp?forum=1000&message=455400)... Unfortunately, none one picked up that idea and made such product. I hope Redrock continues this idea, and do it for MFT and Nex... etc. for Nikon and Canon.

0 upvotes
Martin_PTA
By Martin_PTA (Oct 13, 2011)

Also think this is a pointless exercise at the price!

0 upvotes
forpetessake
By forpetessake (Oct 3, 2011)

Funny to see how somebody charges so much for so little. Really, a half baked product, probably 10 bucks production cost selling with 4000% markup. Here is a thought, find a smart 16 yo kid and pay him for summer project to attach digital oscilloscope to Canon mount with OEM lens and body and record traces for each operation. Then do the same with 4/3 camera. Then get the cheapest FPGA and free design software and program it with recorded conversion sequences. What you get in the end is an adapter with practically all lens operations controlled by camera, you may only need an external power source for the large lenses.

0 upvotes
CameraLabTester
By CameraLabTester (Oct 3, 2011)

If you try to mount a 4/3 compact like an E-P3 on a tripod with a Canon 24-70mm f2.8 lens... the camera will break!

Try it!

2 upvotes
Ashley Pomeroy
By Ashley Pomeroy (Sep 30, 2011)

Coo. There's also an alternative eBay Hong Kong special that has its own built-in aperture, and sells for about £80 or so.

E.g. the adapter doesn't even try to operate the EOS lens' adapter, it has its own. Lord knows if the image quality is any good.

0 upvotes
Ashley Pomeroy
By Ashley Pomeroy (Sep 30, 2011)

This little blighter:
http://dc.watch.impress.co.jp/docs/review/dressup/20110203_424426.html

0 upvotes
Ashley Pomeroy
By Ashley Pomeroy (Sep 30, 2011)

"the adapter doesn't even try to operate the EOS lens' aperture, it has its own", I mean.

0 upvotes
qwertyasdf
By qwertyasdf (Oct 3, 2011)

um....the image quality should be dependent on the lens quality...
The aperture blades has little effect, it will only affect how the OOF renders

0 upvotes
terryoregon
By terryoregon (Sep 30, 2011)

FYI, your redrockmicro link at the bottom of the article doesn't work. You left a period at the end of the link.

0 upvotes
Mistral75
By Mistral75 (Sep 30, 2011)

http://store.redrockmicro.com/livelensmft

0 upvotes
hammerheadfistpunch
By hammerheadfistpunch (Sep 30, 2011)

my only beef with this adapter is the price. Not that its too expensive, but that its only $450 when a stupid rod support system from red rock is more. Shows you how much markup there is on their supports and follow focus' to charge less for something that had to be engineered verses just drawn up and CNC'ed (yes i know they engineer their supports too)

0 upvotes
Photomonkey
By Photomonkey (Sep 30, 2011)

More likely this was created in China and thus is quite inexpensive and they still make good margin.

As for those who DO complain about price, they have been trained by the WalMarts of the world to demand Chinese trinkets for a nickel. OTOH here in America there is so much less disposable income everything looks expensive.

1 upvote
hammerheadfistpunch
By hammerheadfistpunch (Oct 5, 2011)

trouble is, i know how much is costs to CNC the types of rods and supports that they sell...its not nearly as much as they are selling them for. The trouble isn't walmart price shopping, the trouble is "professional-itis" where you can charge what ever you want for something as long as its a "pro" item. look at continuous lighting for example, does it REALLY cost $150 to make a 250 watt fill light? they are the same bulbs as $15 home depot lights and project a similar pattern. or mount adaptors, $150 for a thin threaded chunk of machined aluminum? I wouldn't buy a redrock product because a: i make make most of what they sell myself (i know im not the average consumer) and b: its just flat out a ripoff.

Your probably right though, this is made in china and cheaper, so why isn't the rest of their gear?

0 upvotes
Hennie de Ruyter
By Hennie de Ruyter (Sep 30, 2011)

Why dont the camera control aperture directly?

0 upvotes
ThePhilips
By ThePhilips (Sep 30, 2011)

I do not see Redrock on list of FourThirds consortium members. So I guess the adapter can't properly talk to the camera. Canon's EF mount is proprietary, but long ago REed (RE: reverse-engineer). 43 probably isn't yet REed, since generally there is no need to RE it. Small companies like Redrock probably can't bear the full price of 43 membership to get access to the 43 protocol needed.

P.S. The latest published list is from 2006 (on 43 Wikipedia). Googling around "redrock micro joins four thirds consortium" gave no results. That hints that the adapter really can't talk to the camera: Redrock may not use the 43 protocol.

0 upvotes
mister_roboto
By mister_roboto (Sep 30, 2011)

Other companies don't let 3rd party manufactures use their AF protocols- they backwards engineer it.

0 upvotes
Tim F 101
By Tim F 101 (Sep 30, 2011)

If they thought everyone would want one, they would make a ton of them and charge less than $400 per. This is for Canon pros (and amateurs with a fat wallet) who carry mft as a second body. It fills a niche that a very small number of people have been very urgently asking for.

0 upvotes
abolit
By abolit (Sep 30, 2011)

this adapter costs more than all my canon EF lens and all this is about to change the aperture in 1/3 steps?

0 upvotes
dmanthree
By dmanthree (Sep 30, 2011)

I wonder if they have one planned for the E mount?

0 upvotes
M Jesper
By M Jesper (Sep 30, 2011)

What are you guys complaining about. This is a professional adapter made mainly for that professional mFT film camera. A camera no-one's going to have unless they're planning to make money with it. So a little extra cash for a proper adapter to use them trusty L lens collection is small potatoes that could be well worth it in the end if it gets them results. Obviously this is more than just a lever to open the aperture, that means advanced electronics and extensive R&D. Looks to be well built too. Plus the price you pay for low-quantity specialty equipment. You don't have to drop your opinion on every single news item here now that DPR has the comments feature you know. If a product is this obviously not for you that's your cue to move on ...

8 upvotes
BJN
By BJN (Oct 2, 2011)

MFT "film camera"?

0 upvotes
M Jesper
By M Jesper (Oct 3, 2011)

it's dutch for video camera, my bad, got mixed up. thanks for noticing my otherwise excellent english.

3 upvotes
Frank Neunemann
By Frank Neunemann (Sep 30, 2011)

Sorry, but $500 (the Live Lens 9 Volt Battery Cable is required as well!) for an adapter that just closes the aperture? Thats it? No thanks.

1 upvote
Knallberto
By Knallberto (Sep 30, 2011)

That's true. Money for nothing .. or for cat.

I prefer my simple Canon-mFT adapter for $8 or my NIPON adapter with aperture for $60.
People buying such an adapter would even buy Coke holder for Toyota for $499 ....

1 upvote
mediokre
By mediokre (Oct 1, 2011)

If Image Stabilization works via the adapter it's worth $500. Big difference for video.

0 upvotes
AaronCole
By AaronCole (Oct 1, 2011)

The L lenses I got require power even for the focus..
so it's actually more aimed for people with professional lenses..

0 upvotes
AaronCole
By AaronCole (Oct 1, 2011)

i meant, the prime L-series lenses I got....

0 upvotes
Jozef M
By Jozef M (Sep 30, 2011)

Works with EF lenses, does this mean also EF-s lenses? Simply no words about this, stupid sloppy press, as usual. Or didn't I see it?

0 upvotes
M Jesper
By M Jesper (Sep 30, 2011)

Why the h not. Same mount. Just another stupid sloppy comment, as usual.

1 upvote
FuzzTheKingOfTrees
By FuzzTheKingOfTrees (Oct 1, 2011)

EF-S isn't the same mount, EF-S lenses protrude past the mount into the camera. They can't be mounted on full frame cameras. Therefore this question is perfectly valid, it's possible that the design of the adapter prohibits the use of EF-S lenses.

0 upvotes
wezen
By wezen (Sep 30, 2011)

why not buy an oly adapter and a second hand sigma 18-50 2.8 (four thirds) for the same amount of money. This combi will give you a much more usable focallength range + aperture contrule and af. for hd filming this sigma lens is plenty sharp at 2.8 and doesnt have the focus by wire feel a lot of ft lenses have.

0 upvotes
olyflyer
By olyflyer (Sep 30, 2011)

Because this is a GENERIC adapter, not a specific lens. I believe there are considerably more options with this adapter and it offers more flexibility than anything FT can offer. This adapter is a great idea.

0 upvotes
Knallberto
By Knallberto (Sep 30, 2011)

.. great idea ... yeahhhh, especially for the seller.

0 upvotes
inevitable crafts studio
By inevitable crafts studio (Sep 30, 2011)

not everyone started with photography yesterday, some allready own lenses, you know?

2 upvotes
AaronCole
By AaronCole (Oct 1, 2011)

That lens is more for entry type lenses... and it has it's own problems with flare amongst others..
I would rather use my L-series lenses on my AF100.

0 upvotes
Taikonaut
By Taikonaut (Sep 30, 2011)

I can see it being popular with high end MFT owners who also owns lots of Canon lens especially if they their MFT for video. The prices are still too high for most I feel. There is another company developing something similarand will give Redrock some competition.

0 upvotes
Jun2
By Jun2 (Sep 30, 2011)

ugli

0 upvotes
Vadimka
By Vadimka (Sep 30, 2011)

Yes this thing will not sell too much for photography purposes. There are smaller and better lenses that can be used on m4/3 without such bulky adapter.

I also don't see AF100 owner running and buying Canon EF glass just because of this adapter.

But if you are an enthusiast cinematographer and already own 5D/7D and lots of EF glass, than this little adapter will open the possibility of jumping on AF100 body with minimum expenses on glass.

3 upvotes
ericwestpheling
By ericwestpheling (Sep 30, 2011)

wake me up when they have this for the Sony F3

0 upvotes
mediokre
By mediokre (Oct 1, 2011)

yes. e-mount. now.

0 upvotes
tkbslc
By tkbslc (Sep 30, 2011)

Okay, it sorta makes sense on the dedicated video camera since Panasonic doesn't have any f2.8 zooms. But for still shots, well, there are a lot of nice used Canon bodies you can get for the $440 price tag. might as well just get the real thing.

0 upvotes
tulo
By tulo (Sep 30, 2011)

olympus got a couple of /f2.0/ zooms though. (in 4/3 mount)

0 upvotes
M Jesper
By M Jesper (Sep 30, 2011)

Where ? You're talking about the rumors tulo ? A 12-35mm was it ? and the long one. Those are not going to be F2 man, that's pushing it, real far. The oly's high-end 12mm prime is already 'only' F2, i bet the zooms are going to be a normal F2.8, but should be able to deliver quite awesome quality wide-open, just like the 12/2.

0 upvotes
M Jesper
By M Jesper (Sep 30, 2011)

Oh i see you mean FT, not mFT. Yes those are great, expensive, but for good reason. I guess it all depends on if you have a glass collection already, and that's the adapter you need.

0 upvotes
CarVac
By CarVac (Sep 30, 2011)

The cable goes to a 9v battery pack.

0 upvotes
love_them_all
By love_them_all (Sep 30, 2011)

I don't see any practical use on the M4/3 still camera bodies. It is not cheap to start with. If I have to use EF lenses on the mirrorless I'd rather get a $120 adaptor with manual aperture, or simply shoot them wide open with ND filters if needed.

And where is the AF control??

Get a Canon body already!

0 upvotes
shaocaholica
By shaocaholica (Sep 30, 2011)

No Canon body can do some of the video stuff available on M43 cams including the hacked ones.

0 upvotes
love_them_all
By love_them_all (Sep 30, 2011)

Read my post again. I said still camera.

0 upvotes
Klarno
By Klarno (Sep 30, 2011)

Well, considering that every M4/3 body released after the G1 does video as well as stills, and that even the most basic M4/3 still bodies have been used for cinematography in multi-million dollar productions, I don't see the problem.

This is a specialized device for a specialized market. Hence the price tag. It enables a user to dramatically extend the range of glass that they can use on a single body. These users aren't necessarily concerned about getting a Canon body already, they probably already have several--god knows that the camera is the least expensive part of what they do now if they're shooting with DSLRs.

0 upvotes
olyflyer
By olyflyer (Sep 30, 2011)

ND filter does not change the DOF, closing the aperture is the only way to increase DOF. You are not always interested to take images with f/1.4 even if you have such lens.

0 upvotes
Knallberto
By Knallberto (Sep 30, 2011)

$120 is for KIPON adapter - same adapter you get from NIPON for $60

0 upvotes
Jogger
By Jogger (Sep 30, 2011)

what is that cable coming out of it and where does it plug into the body??

0 upvotes
Vadimka
By Vadimka (Sep 30, 2011)

it plugs into 110v outlet. But of course for European customers free 220v adapter is included.

1 upvote
Andy Crowe
By Andy Crowe (Sep 30, 2011)

According to the press release it goes to a separate battery pack, guess the m4/3 mount can't provide enough power for the Canon lens electronics

0 upvotes
Writerman
By Writerman (Sep 30, 2011)

It's official. You can now turn your M4/3 into the "FrankenCam" of your own design. The whole concept kind of defeats the smaller, lighter concept, doesn't it?

0 upvotes
Deleted-pending
By Deleted-pending (Sep 30, 2011)

You can get an adapter ring with controllable Aperture wing for 70$ on ebay. It's smaller than this monster & will work perfectly.

0 upvotes
elleyyh
By elleyyh (Sep 30, 2011)

$442.50 is misleading. You need the 9v battery cable to make it work out of the box.

0 upvotes
elleyyh
By elleyyh (Sep 30, 2011)

the 9v battery cable is $52.50

0 upvotes
Andy Crowe
By Andy Crowe (Oct 1, 2011)

"You can get an adapter ring with controllable Aperture wing for 70$ on ebay" - it doesn't work perfectly, because the position of this new iris is in the wrong place stopping it down creates more vignetting, not less as you would expect an aperture to work.

0 upvotes
wilsonlaidlaw
By wilsonlaidlaw (Oct 1, 2011)

On their website it says that it does not operate the IS and on many lenses the AF either. I have a Canon 100-400L IS lying around doing zilch but I don't think this is the answer to getting it to work well on a Pana G2.

Wilson

0 upvotes
elleyyh
By elleyyh (Oct 2, 2011)

I agree Wilsonlaidlaw. Still, any adapter will never get that original sharpness. It's more expensive than many of the beautiful prime lenses. I'll just buy m43 lenses for m43 bodies. And EOS lenses for Canon. :)

0 upvotes
Total comments: 63