New Olympus patent discloses phase detection and optical viewfinder adapter for MicroFourThirds

The japanese website Egami found a new Olympus patent (Google translation doesn’t work very well). I tried to make a small summary:
* Patent publication number 2010-152140 published on 2010/07/08 and filled 2008/12/25
The following patent discloses an adapter (in blue) that adds phase detection and optical viewfinder to current MicroFourThirds cameras. This is not a new concept, we already saw that with the Leica Visoflex (click here to see the Visoflex on eBay).
Such an adapter makes sense because phase detection autofocus is still much faster than the current contrast autofocus system of MicroFourThirds cameras. And not few of us will like the idea to have an optical viewfinder instead of the sometimes noisy and not good enough electronic viewfinder.
That could be also the final solution to merge FourThirds and MicroFourThirds (but that’s just speculation for now!).
UPDATE: Olybold has taken a nice picture of the Leica Visoflex on the Panasonic G1 (Many Thanks!!!)


Noodleman
2 years ago |Don’t you guys get it yet? This IS the modular system — m4/3 body as the base; adapters that let you use 4/3 and m4/3 lenses; EVF or the phase detection focusing adapter. This IS what they’re coming out with.
pepik
2 years ago |Ok, so Olympus just copied Visoflex and added AF? Did anyone told them how “successful” this approach was?
spanky
2 years ago |Interesting concept. I’d like to see something like a FOV-reducer as part of this adapter that would image a FF image circle unto the 4/3 sensor.
@pepik – to be fair, the Visoflex failed in many ways because of poor implementation, and because the Leica RF community didn’t see the point of a larger camera, not necessarily because of a failure of concept. It was also plagued by a number of other technology shortcoming, all of which can be easily overcome with modern technology. Done right I think there’s a market for something like this, and it matches two existing sets of systems in the E-PEN and Olympus E-series cameras.
Nathan
2 years ago |This is just the tip of the iceberg, one patentable component of the whole. Remember that that’s all a patent is.
The entire concept is NOT on this sheet. Focal reducer still likely coming….
Anonymous
2 years ago |[...] [...]
Graham
2 years ago |I don’t get it??? I thought that micro 4/3 was micro because of the reduced distance between the lens and the sensor which is possible because there is no mirror in the way.
jt
2 years ago |it’s kinda cool but I predict it will be as successful as the visoflex
Javiveras
2 years ago |I think this concept is amazing. Not revolutionary, but evolutionary…
rock
2 years ago |do not believe the new camera will have OVF, will be EVF for sure..
admin
2 years ago |Hi Rock! This is just a patent…it doesn’t mean it will become true. So may you are right…
Miroslav
2 years ago |Yeah, this is the basis of the modular system, adapter that enables PDAF on 4/3 lenses we talked about a few days ago. I hope the module can be put on existing m4/3 bodies as well as new ones.
On the other hand, this Leica solution is sooo ugly ( although not meant to be put on G1 ), I hope Olympus makes something decent looking …
erik
2 years ago |why on earth would anyone buy this? might as well stick with an SLR. Nice way to undermine their entire concept.
if this is the future of M43, I’ll be heading over to Pentax.
Antonio Rojilla
2 years ago |I’d like them to forget about this and focus on Micro Four Thirds, but I know they just can’t forget current Four Thirds users and need to provide them a worthy upgrade. And this is why I also believe that they won’t release any modular camera in the end, just a successor to the E-3.
Then, Four Thirds will be history. And hopefully they will finally start releasing high-end bodies and lenses for Micro Four Thirds.
Nathan
2 years ago |Micro Four Thirds is not a viable replacement for 4/3. Small bodies are great for snaps between 8 and 100mm focal lengths, but for macro or for telephoto, a small camera becomes a hindrance. Sometimes, a pro actually needs a big camera body and a real optical viewfinder, or at very least a mirror for phase detect autofocus.
An E-P2 or E-PL1 is not sufficient for wedding photography or wildlife photography.
It’s a great camera, and I’d love to be able to take the right parts for the right job each and every time. The E-P2 is silly because you can’t use the viewfinder and a flash at the same time. How dumb is that?
lnqo-M
2 years ago |On pantent picture is the not explanation what monter so is uses, only modulars.
Problemes is the is 20mm flang distance from sensor to monter on m4/3, and only 20mm !!! moore out to 4/3 monter. If Olympus only need 20mm for a mirror, maybe Olympus come by mirror in m4/3 also? HEHE !!!
Antonio Rojilla
2 years ago |Current MTF models are small, but I don’t see why Olympus can’t release future MTF models as big as a Nikon D3. Or a Leica S2. Or a Pentax 645D.
Ken
2 years ago |If Oly/Panny are going to make a big MFT cameras they might as well stick with DSLR’s. The point of Micro four thirds is that it is “micro” or smaller camera with better sensor than a point and shoot camera. Also what would you fill in the empty space of the bigger MFT body with? air? It couldn’t be bigger sensor because it would render current MFT lens line up useless and you wouldn’t be able to call it FT because FT stands for 4:3, the aspect ratio of the sensor.
Despot
2 years ago |An apology if this is a dumb question, but would current m43 lenses (designed for contrast autofocus) work with a phase detect system?
I would love something like this as an option to add to my current m43 gear as, while I really like my GH1, I miss the focus speed and accuracy of a larger dSLR. However, the system would be less attractive if it did not work with all current m43 lenses.
tarnumf
2 years ago |Those pictures with Visoflex look just ugly.
Ross
2 years ago |I don’t know why all the negative comments. When the PENs came out, what was the constant cry from some? “Give us a high end weather sealed micro 4/3′s body!”
Now it might be possible this is exactly what Olympus is going to do, but because micro 4/3′s is not the most suitable for the existing high end large 4/3′s glass, this might be the way to have the best of both formats. If they make a tough weather sealed DSLR type body that would include a tough weather sealed removable OVF, mirror box, contrast focus 4/3’s mount unit that would look as good as the HLD-4 grip on the body & when removed, allowing the fitting of micro 4/3’s lenses as well the VF-2 EVF. The micro 4/3′s lenses you already have for your PEN can also be used here.
It is also possible they could make a more universal one for the PEN models.
Please don’t always look for the worst in a possible attempt by Olympus for something that could be a very viable solution for the future.
We wil see if this is what is to happen.
lnqo-M
2 years ago |Ross, You right have, but the patent is not a visoflex monster from Olympus, but the is a mirror modules to modul system to Olympus.
I mean Olympus come up by m4/3 modul, when them start produce Pro lens for m4/3.
El fin del 4/3
2 years ago |[...] [...]
Antonio Rojilla
2 years ago |@Ken, I don’t want big MTF cameras, but others do, so I’m just saying to that that there’s just nothing stopping any future MTF model to be bigger. And there is no need to add just air to grow them up, you can add: a bigger grip for bigger batteries or extra memory card slots (or built in memory), GPS, Wi-Fi or 3G modules (for direct upload to servers), bigger LCD, bigger OVF or EVF, optional or built-in vertical grip, better weathersealing and so on.
Now, they are right that for some uses a big camera works better, but the key to a small system is in the lenses, no the camera (like the Leica M system), and with MTF we can have both small and big cameras but always small lenses. That’s been the biggest criticism to FT: good lenses but as big or even bigger than equivalent lenses for larger formats, so no real benefits for most people (or that’s been the public’s perception). With MTF they can release smaller High Grade lenses (just look at the differences between some FT lenses and their current MTF equivalents) while keeping the sensor size. The problem is that to this date we have only received average lenses.
Nathan
2 years ago |The more I look at this, the more I become convinced that Olympus is coming out with a completely new lens line. The reason I think this is that there is only 20mm to work with from the flange of the micro four thirds camera to the lens mount of four thirds. While it would appear possible that a mirror would fit if it were the same size as the sensor, once you turn it to a 45 degree angle, it would be 18.38mm to give 100 percent coverage.
This means that there is not enough room for the mount, and NO way for 100 percent viewfinder coverage. Swinging a mirror that size around in that space would be a bloody nightmare.
I conclude that this adapter adapts micro four thirds to ANOTHER class of lenses other than Four Thirds.
They just have a need for another few millimeters and they can’t have them. Anywhere the mirror goes that isn’t inside that 20mm by at least 5mm (leaving only 10mm) doesn’t have a clear shot at the ground glass.
Really, what they have is a little over 10 or 12 mm to work with if they tried to do this in between a micro four thirds camera and a Four Thirds lens. It’s just not possible.
However, if they built a DIFFERENT lens with a different flange mounting, it could work fine, and operate even better with their little 0.5x AF adapter that they patented…
Nathan
2 years ago |It just might work if it were a pellicle type mirror. Maybe. Most likely not like the diagram, though. The AF phase detect sensor would have to be where the ground glass is, or you’d be trying to look through a myriad of opaque rectangles where the sensors are, and the wires for them.
But really, this would only work with some OTHER class of AF lenses.
Antonio Rojilla
2 years ago |@Nathan Don’t pay too much attention to patents. Sometimes they just patent something so others can’t come with a similar solution (or have to pay royalties).
I’m convinced that we will not see the modular camera since it makes no sense financially, and it solves no real problems (in fact, it introduces some) other than offering current FT users an updated model. But it is easier to simply release a worthy E3 successor taht will take then a minimum of another two to three years to be updated… Time enough for Olympus to finally release high-end MTF cameras and lenses and try to convert the few remaining FT users.
Or that’s the only thing that makes sense to me. I don’t see a market for a modular model that will be bigger, more cumbersome and more expensive than current solutions. And seeing the acceptance of MTF, I’m sure Olympus is wishing to kill FT. They just can’t do it right now without a revolt from existing users.
lnqo-M
2 years ago |Data transfer to m4/3 camera from mirror box modul?
And where many pins so is in the cable?
I think Olympus engineers develop a quick and good patent to the problem?
And the is big room for to mirror also?
Solution is obvious!
Ross
2 years ago |“Data transfer to m4/3 camera from mirror box modul?
And where many pins so is in the cable?”
This might be by removing the MFT mount module (with EVF) & attaching the FT module (with OVF) similar to the way Ricoh changes modules, though perhaps, dropped in vertically. There could then be a multipin connector to achieve this as well as the room for a normal mirror mechanism with appropriate focusing components. This could all be tied in with previous rumours of modular design.
All food for thought!
lnqo-M
2 years ago |HeHe, right Ross.
Alfons
2 years ago |Let’s forget the current m4/3 lineup for a moment and think about this consept in a new way.
There would be a load of different parts to choose from. One could pic one of several the sensor modules and just stick on that, OR one could add an viewfinder unit and have a larger system with more power.
I bet the design will differ radically from that old Leica.
I bet there will eventually be weatherproof (and shockproof!) modules etc. if the sales go well.
It would be fun to go to a shop and select your favourite sensor module, then add the viewfinder module with the features you prefer, and build your own dream camera!
lnqo-M
2 years ago |Yes Alfons, i think aslo the, Olympus have a good ide on modules system, and i hope them go weather and shockproof after E-5.
Do
2 years ago |I think it makes sense to have a camera that is basically light and compact, but can be converted into a fast-focusing but heavier reflex for special purposes – similar to the idea behind the combination of e-p2 and vf2 in contrast to the g1/g2/NX. The main disadvantage is that such a system will probably be more expensive than having two different cameras-and then there is barely no advantage at all.
lnqo-M
2 years ago |Do, good profit come after new up grad of camera modul, for you need only camera modul for every new up grading.
Alfons
2 years ago |We are only missing the option to place the buttons!
On E-3, Oly really mixed up the placement of PLAY/AEL/LIVE VIEW -buttons
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