blackest Loc: Ireland

Anyone tried combining lens adapters? for micro 4/3rds

For example pentax k to canon eos to canon eos tilt to m43
or m42 > pentax k > m4/3
or m42 >pentax K > EOS > m4/3


It looks like canon eos > micro 4/3rds is the most common option.
especially with specials like tilt and speed boost.

Cdouthitt Loc: Traverse City, MI

I had an om to 4/3 that I then mounted to my mmf3. It worked, but I didn't fully test it. I no longer have the lens or mounts so I can't test it for you.

blackest Loc: Ireland

Thanks for the report

I just found this on ebay

http://www.ebay.com/itm/ZHONG-YI-OPTICS-Model-AI-M43-Black-Micro-Lens-Turbo-Adapter-Ring-With-Covers-IOB-/201265110585?pt=US_Lens_Adapters_Mounts_Tubes&hash=item2edc55de39

Very badly described

It appears to be this

http://www.zyoptics.net/product/zhongyi-lens-turbo-adapters-for-micro-four-thirds-cameras-m43/

A nikon to m43 speed booster conversion lens, i'd be tempted to bid on it but the canon version i think would be more useful. As I have no nikon lenses no use to me but other m43 users might it attractive.

AdamK Loc: San Francisco Bay Area

I'm curious as to what you are looking to achieve - an effect of extension, or the combination of (different) adapter features like tilt from one + speed from a second?

I use mostly legacy lenses so therefore have a number of adapters on hand, but I never thought to combine adapters for any purpose.

I'm always looking to get more out of my old glass - if there is something cool that I'm missing by not experimenting by stacking adapters, I'd sure be interested in knowing more.

JimH123 Loc: Morgan Hill, CA

Using two adapters is not going to work, unless all you want to do is macro work. An adapter is built so that the lens will focus exactly at the camera's sensor. And adding a second adapter will only move the lens further from the sensor and with it any chance of infinity focus.

But if what are you after is the ability to take pictures of aphids and ants, go for it.

blackest Loc: Ireland

Well its all to do with registration isn't it.

Canon EOS is a shorter registration distance than pentax k mount a glassless adapter can be used to use the k mount lens on the canon.

So now this combination has the same registration as a regular canon lens

So is there any reason that this couldn't be used with a canon eos to micro4/3 adapter?

There are tilt lens adapters for canon eos lenses on m43 but for not for pentax lenses
but a pentax k to canon eos adapter might literally fill the gap in the market.

There is potential for doing the same with nikon as well.

If I want to use m42 with pentax k there is a very cheap adapter to do so.
As it happens I already have a k to m43 adapter so buying the m42 to k adapter brings me lenses to both systems. I also have a k1000 film pentax camera
so e.g my 50mm k mount lens works as 50mm , 75mm, 100mm depending on which body I use.

To be fair I think the speedboost adapters are too much money, when you can buy shorter focal length lenses natively and 1 stop more light just means you can use a little lower iso.

The tilt lens adapter is far more interesting and was very expensive to do on a dslr and even more expensive if you went to medium format.

https://www.youtube.com/watch?v=E5MO0h7NIqY nice little video showing whats possible . Adapters for m43 start at around $25.

melismus Loc: Chesapeake Bay Country

If the adapters add up to the right register distance you will get infinity focus.

alfeng Loc: Out where the West commences ...

FWIW. I believe you have indirectly answered the question, yourself ...

My recollection is that the film-to-flange distance is GREATER for an m4/3 camera body than for an EOS camera body ...

So, you will probably not be able to focus at normal distances AND you will be limited to doing close-up work.

I believe that there is a Pentax-to-Nikon adapter which has a compensating lens ...

You could use THAT with a Nikon-to-m4/3 tilt adapter.

blackest Loc: Ireland

http://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html

According to that link
Pentax Q bayonet 9.2 (the shortest registration distance)
C-mount 1″×32tpi thread 17.526
Sony E bayonet 18
Micro Four Thirds bayonet 19.25
4/3 System digital bayonet 38.58
Canon EOS bayonet 44
Pentax K bayonet 45.46
Nikon F bayonet 46.5

So micro 4/3rds has a shorter registration distance than the 4/3 system and the 3 main DSLR mounts Canon's slightly shorter registration distance is just enough to allow nikon and pentax lenses to fit without optical elements

Canon R/FL/FD breech or bayonet 42mm
This is an interesting one for mirrorless users, the registration distance is too short for modern canon eos dslr's.
It kind of suggests these lenses are gathering dust, and low priced as a result.
(ebay seems to agree, adapters are around 10 euro upwards).

The C mount is a bit of an unusual one, as it does get used by micro 4/3rds camera's if the adapter was flat it wouldnt be able to be used but i think they are recessed a little so the lens sits a little into the m4/3 mount to achieve infinity focus.

Cdouthitt Loc: Traverse City, MI

As a reminder...this site has a large database of lenses that have been adapted to m4/3. As you can see, there are plenty of canon lenses being used with no issues.


http://www.mu-43.com/forumdisplay.php?f=81

blackest Loc: Ireland

thank you for that link

Cdouthitt Loc: Traverse City, MI

No problem. It helped me to decide whether or not to buy the Jupiter 9.

blackest Loc: Ireland

The jupiter 37a f4 135mm is also a nice lens and well regarded