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E-Mount (NEX) adapters

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Rogerjb View Drop Down
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Post Options Post Options   Quote Rogerjb Quote  Post ReplyReply Direct Link To This Post Posted: 04 October 2012 at 22:01
Just wondering if anyone has come out with and adapter that can communicate exif data (specifically "focal length") to the camera.
I see that Fuji sells their "M adapter" that lets the user pre-program up to 6 m-mount manual lenses into it so the exif data is captured.
 



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4paul View Drop Down
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Post Options Post Options   Quote 4paul Quote  Post ReplyReply Direct Link To This Post Posted: 04 October 2012 at 23:15
There are three Sony A-mount lens to E-mount camera adapters which communicate.
LA-EA-1/2/3
There is a new Canon EOS lens to E-mount camera adapter which communicates.
manufactured by MetaBones, I think

As Far As I Know, that is all for intelligent off-the-shelf NEX adapters.

If you want to fix the EXIF data on your computer you're into:
ExifTool     http://www.sno.phy.queensu.ca/~phil/exiftool/
PHATCH       photobatch.stani.be/documentation/
or linux / open source programs;
I think Photoshop, maybe Aperture as well.

If Sony is smart (cough cough) they will add an EXIF Writer function to the new cameras that will have customizable "Apps".

   :Paul
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Post Options Post Options   Quote Octupi Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 01:03
I believe there are only 2 Sony adapters, LA-EA1/2
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 01:10
Originally posted by Octupi Octupi wrote:

I believe there are only 2 Sony adapters, LA-EA1/2


detail's of the LA-EA3 here
intended for the new full frame NEX E mount camcorder.
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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Post Options Post Options   Quote Howard_S Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 01:10
The LA-EA3 adapter is supplied with the new full-frame VG900 video camera; Sony say that the LA-EA3 adaptor 'lets photographers use full-frame A-mount DSLR lenses at their designated focal length'.
Howard Stanbury Instagram | Flickr | Web
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Rogerjb View Drop Down
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Post Options Post Options   Quote Rogerjb Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 04:05
Thanks for the responses. Actually my main interest is facilitating the use of M Mount manual rangefinder lenses on the nex system.

The Fuji M adapter allows the user to enter some information about up to 6 different "third party" purely manual lenses. The camera not only populates the exif file with the data but can actually automatically make in-camera lens corrections (although I believe that's only for jpg files).

I would like to at least know which lens was used on the nex for a particular shot so that I can apply the appropriate lens correction factors in post-processing of raw files.

Hopefully it's just a matter of time before somebody comes out with this.

 



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Jocelynne View Drop Down
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Post Options Post Options   Quote Jocelynne Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 04:46
I am a full time Alpha user. I am loathe to change to any other system. But I find the NEX design philosophy, which enables lenses of many manufacturers to be used successfully on NEX camera bodies, to be highly attractive.

If Sony developed a professional Alpha camera body which would incorporate the Alpha and the NEX lens interfaces, I would be an eager customer.

Can the A77 and A99 designs be foundations for this?
Maxxum 450si, Sony A300, A700, A900 and a cubic meter of Alpha lenses
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Steve-S View Drop Down
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Post Options Post Options   Quote Steve-S Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 07:26
Originally posted by Rogerjb Rogerjb wrote:

Just wondering if anyone has come out with and adapter that can communicate exif data (specifically "focal length") to the camera.
I see that Fuji sells their "M adapter" that lets the user pre-program up to 6 m-mount manual lenses into it so the exif data is captured.
The short answer is "no." There is NO adapter that lets a purely-mechanical lens communicate EXIF data, because such lenses are "dumb" (no electronics/EXIF chip) and don't HAVE any data -- they don't know themselves what their focal-length is!

As noted, some "chipped" adapters can be pre-programmed with EXIF data which they communicate to the camera as if it came from the lens. So far as I know, things like zoom lenses defeat these chipping methods, as the "dumb" lens has no way to let the adapter know when it zooms (changes focal length) nor does the adapter have any way to change its programming...

I haven't heard of any SR/MD/MC (Minolta manual-focus) to E (NEX) adapters which are chipped... but I'd love to know of any!


- Steve S.
Alpha: a77+7000; SAL 18135, SAL1870, MinO50/1.7, Tam200-500, Tam90/2.8, Smyg85/1.4, others.
SR(MC/MD): XD-11, XK+AEhead Min50/1.7&1.4, Tam70-150/3.5, Viv35/2.8, Viv2xTC
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Post Options Post Options   Quote Steve-S Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 07:36
Originally posted by Jocelynne Jocelynne wrote:

I am a full time Alpha user. I am loathe to change to any other system. But I find the NEX design philosophy, which enables lenses of many manufacturers to be used successfully on NEX camera bodies, to be highly attractive.

If Sony developed a professional Alpha camera body which would incorporate the Alpha and the NEX lens interfaces, I would be an eager customer.

Can the A77 and A99 designs be foundations for this?


A77 & A99 look like pure-Alphamount bodies. No sign of NEX or NEX-like functionality, in regards adapting other lensmounts (though the focus-peaking is nice!).

The "flange distance" (space from the lensmount to the plane of the sensor (or film)) is the critical point: for the Amount, it's a HUGE distance, and other mounts (needing equal or even lesser distance) adapt poorly. For the Emount, it's very short and most other lens-mounts need just a simple tube (with appropriate bayonet/screwmount/etc at each end of tube) of whatever lenght stretches the NEX's flange distance to that of the adapted lens" a tube can add distance, but nothing can create negative distance for the Amount. :-(

So far as I know, there've been occasional rumors of some sort of Amount/Emount hybrid camera, but nobody has been able to say what such a beastie would look like, or how it would be constructed... Sort of a NEX body, maybe, with a built-in/zooming adapter? But the differing bayonets just look like an overwhelming design-challenge for today's tech.


- Steve S.
Alpha: a77+7000; SAL 18135, SAL1870, MinO50/1.7, Tam200-500, Tam90/2.8, Smyg85/1.4, others.
SR(MC/MD): XD-11, XK+AEhead Min50/1.7&1.4, Tam70-150/3.5, Viv35/2.8, Viv2xTC
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Jocelynne View Drop Down
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Post Options Post Options   Quote Jocelynne Quote  Post ReplyReply Direct Link To This Post Posted: 05 October 2012 at 08:06
@Steve-S: Thanks for the info. I was just wishful thinking. I have an assortment of lenses which can be adapted to the NEX body with a NEX LA-EA type adapter.

I was wishing that, eventually, an adapter would be designed which would enable me to employ those lenses on my Alphas and which would provide the services available via the LA-EA type.

...OR an Alpha/NEX type body, some time in the future.

Oh well...
Maxxum 450si, Sony A300, A700, A900 and a cubic meter of Alpha lenses
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Steve-S View Drop Down
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Post Options Post Options   Quote Steve-S Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2012 at 04:43
@Jocelynne:
Any "smart" lens, with a chip that delivers EXIF data &c, can -- potentially -- give info (via a sufficiently-smart adapter) to the camera; Metabones, for example, has IIRC recently announced a Canon-EF-to-NEX-E "smart" adapter that supposedly gives not only full EXIF but full bi-directional functionality, including electronic aperture control, focus-distance info, focal-length of zooms, and the rest... Supposedly, the NEX acts like a Canon camera, so far as the lens is concerned!

The Alpha mount, however, has one of the longest flange-distances of any 35mm-film format camera. This means that most lenses (including Minolta's own manual-focus line) need glassed adapters to work; these inevitably act as mild teleconverters, reduce contrast, and otherwise have various negative impacts on many measures of final IQ.
Alpha: a77+7000; SAL 18135, SAL1870, MinO50/1.7, Tam200-500, Tam90/2.8, Smyg85/1.4, others.
SR(MC/MD): XD-11, XK+AEhead Min50/1.7&1.4, Tam70-150/3.5, Viv35/2.8, Viv2xTC
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Jocelynne View Drop Down
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Post Options Post Options   Quote Jocelynne Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2012 at 13:40
@Steve-S: Thank you, Steve, for your most gracious responses. You are providing valuable help and assistance for me.

I owe you a goodie, or two, or three, or four....
Maxxum 450si, Sony A300, A700, A900 and a cubic meter of Alpha lenses
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Steve-S View Drop Down
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Post Options Post Options   Quote Steve-S Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2012 at 17:39
Originally posted by Jocelynne Jocelynne wrote:

I owe you a goodie, or two, or three, or four....
Just consider me as another part of Dyxum, or even of the Internet-at-large... when you find a situation where YOU know something that someone else wants help/info, just "pay it forward." Me? You don't owe me anything. I helped because I wanted to, because someone once helped me, because this is Dyxum and answering where I can helps ME to meet my own (vast) accumulated debt that I need to pay forward...


- Steve S.
Alpha: a77+7000; SAL 18135, SAL1870, MinO50/1.7, Tam200-500, Tam90/2.8, Smyg85/1.4, others.
SR(MC/MD): XD-11, XK+AEhead Min50/1.7&1.4, Tam70-150/3.5, Viv35/2.8, Viv2xTC
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Jocelynne View Drop Down
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Post Options Post Options   Quote Jocelynne Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2012 at 19:20
@Steve-S: I always search for people who are better than I am. Your philosophy is the type which attracted me to dyxum, originally.   Dyxum is a beautiful repository of such attitude and thought. This spirit is essential for the survival of society. Some people call it "The Golden Rule" (do unto others as you would have them do unto you).

OK, I will "pay it forward" for the infinite number of goodies which I owe to you, which I owe to Dyxum and which I owe to the many wonderful others who have been gracious to me too.    
Maxxum 450si, Sony A300, A700, A900 and a cubic meter of Alpha lenses
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