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Thread: Auto focus with anything!

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    Thumbs up Auto focus with anything!

    Techart adapter for M lenses but by extension anything that can be mount on an M mount via an adapter (Nikon F, Olympus OM, Leica R, m39 etc) can also auto focus!

    https://www.youtube.com/watch?v=zEwpHChOkC0

    Taking the A series' versatility to a whole new level! Awesome!
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    Re: Auto focus with anything!

    spotted the video on sony alpha rumor as well. very cool! let's hope it doesnt cost an arm and a leg!
    Keep It Simple.
    XQ2 / A7r / 15mm / 25mm / 28-35-50mm
    EOS M3 / 18-35mm
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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    Techart adapter for M lenses but by extension anything that can be mount on an M mount via an adapter (Nikon F, Olympus OM, Leica R, m39 etc) can also auto focus!

    https://www.youtube.com/watch?v=zEwpHChOkC0

    Taking the A series' versatility to a whole new level! Awesome!
    Thanks Vivek. How would this work for FLE lenses?
    With best regards, K-H.
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    Re: Auto focus with anything!

    Quote Originally Posted by k-hawinkler View Post
    Thanks Vivek. How would this work for FLE lenses?
    Hi K-H, FLE (floating lens elements, leica speak for IF or internal focusing) is close focus corrections. It reamins to be seen how heavy a lens it can (unit) focus first!

    I have dozens of tiny and light weight lenses.

    I will make a prediction and offer a tip: the Jupiter-8 50/2 will be a star! With manual focus, it already is.
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    Re: Auto focus with anything!

    Very cool! (figures; I just sold my last M-mount lens two weeks ago).
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    Re: Auto focus with anything!

    WOW!!

    Victor

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    Re: Auto focus with anything!

    Quote Originally Posted by MikeEvangelist View Post
    Very cool! (figures; I just sold my last M-mount lens two weeks ago).
    fwiw, Mike, you can find a Jupiter-8 that is better than a M Rokkor or a Summicron -C.
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    Re: Auto focus with anything!

    "at cxxxx, we see impossible"
    Keep It Simple.
    XQ2 / A7r / 15mm / 25mm / 28-35-50mm
    EOS M3 / 18-35mm

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    Re: Auto focus with anything!

    The "impossible" would be a camera with Z shift.

    It is energy efficient to move a sensor than a heavy lens.

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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    FLE (floating lens elements, leica speak for IF or internal focusing)
    Not the same thing.

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    Re: Auto focus with anything!

    One can preorder this adapter now : http://techartpro.com

    Expected at the end of Feb/ begin March.
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    Re: Auto focus with anything!

    Hi,

    I don't know about Leica but floating elements normally compensate field curvature correction for focusing distance.

    Best regards
    Erik


    Quote Originally Posted by doug View Post
    Not the same thing.

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    Re: Auto focus with anything!

    On the techartpro link there is these comments:

    Denis
    February 9, 2016 at 4:56 pm
    What about A7s? It works with A7s?

    Admin
    February 9, 2016 at 9:20 pm
    The adapter is optimized for Sony A7II and Sony A7R II only. It may not work as good with A7S.

    Tatsuhiko Ito
    February 10, 2016 at 7:13 am
    Does that mean the adapter need phase-shift autofocus system?

    Admin
    February 10, 2016 at 8:41 am
    The adapter only works with cameras which open the 3rd party PDAF (i.e. Sony A7ii and Sony A7Rii)
    Craig Slingsby
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    Re: Auto focus with anything!

    Quote Originally Posted by Slingers View Post
    On the techartpro link there is these comments:

    Denis
    February 9, 2016 at 4:56 pm
    What about A7s? It works with A7s?

    Admin
    February 9, 2016 at 9:20 pm
    The adapter is optimized for Sony A7II and Sony A7R II only. It may not work as good with A7S.

    Tatsuhiko Ito
    February 10, 2016 at 7:13 am
    Does that mean the adapter need phase-shift autofocus system?

    Admin
    February 10, 2016 at 8:41 am
    The adapter only works with cameras which open the 3rd party PDAF (i.e. Sony A7ii and Sony A7Rii)
    Thank you, great info. You should post that in the sticky thread concerning the use of M lenses on A7r2. This is an interesting info that shouldn't get lost in the usual flow of posts.
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    Re: Auto focus with anything!

    Quote Originally Posted by ErikKaffehr View Post
    Hi,

    I don't know about Leica but floating elements normally compensate field curvature correction for focusing distance.

    Best regards
    Erik
    Thats true! guess this adapter is more suited for more vintage simple M lenses that does not have floating elements and different lens groups.

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    Re: Auto focus with anything!

    I have pre-ordered one. Pending details of the A6300's RAW output, I might buy one of those to go with this adapter.

    The beauty of this adapter is not just the AF but the MF is true manual focus and not fly by wire. I have way too many tiny lenses (not necessarily Leica mount) that can be used with this adapter.

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    With best regards, K-H.

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    Re: Auto focus with anything!

    Just got an email that the adapter has been shipped to me. No indication when I will receive it though.
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    Re: Auto focus with anything!

    Interested to hear your impressions.
    Since it replaces the normal helical focus of the lens I suppose that the helical focus could be used like an extension tube for close focusing.

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    Re: Auto focus with anything!

    Got the adapter. It looks well made. Unfortunately, the past few months have not been exactly how I would have wanted them to be. I do not have an A7 II or the A7r ii as a result.

    It *does* auto focus with a few E mount cams, albeit slowly and only with the default FL of 15mm. The best one is my monochrome NEX-5N, even better than an A7 or an A7s. It is quite amazing to see a 1956 Jupiter-3 5cm f/1.5 auto focusing!

    The focus motor is quite powerful as they advertise and it is possible get one's finger (skin) getting caught in the focus mechanism (ouch!).

    Overall (despite not yet knowing the full potential), i think it is a novelty.

    I have a few samples made using the adapter but accessing my flickr acct appears to be impossible now.
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    Re: Auto focus with anything!

    Many thanks Vivek for reporting your experience with the adapter.
    My order number is above 600, so it maybe awhile before my adapter ships.
    It's good to know that it also works on an NEX-5N, not just on an A7/r II.
    A question, how accurate/consistent is the focus the adapter achieves? TIA.
    With best regards, K-H.
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    Re: Auto focus with anything!

    Hi K-H,

    At best, it is quite inconsistent on the NEX-5N (monochrome where it does better than the regular 5N). Keep the face recognition option on. Indoors it is fabulous. Outside, sometimes it is impossible to get a focus lock or confirmation and hence it is not possible to take a shot

    fwiw, my order number was 591.

    Let me load some samples on to my space here and post it.
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    Re: Auto focus with anything!

    Jupiter-3 5cm f/1.5 (f/2)



    M-Rokkor 90/4 (f/4), focus range was set on the lens as well.

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    Re: Auto focus with anything!

    It took about 2 mins to lock focus and trip the shutter.



    Jupiter-3 5cm f/1.5 (f4), NEX-5N monochrome.
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    Re: Auto focus with anything!

    Many thanks Vivek.
    May I assume that one can also manually focus the adapter?
    If so, I will see how my aging eyes compare.
    Thanks again and I hope your health is improving. Good luck!

    PS: With regards to the last image I admire your patience! :-)
    With best regards, K-H.

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    Re: Auto focus with anything!

    Thank you, K-H!

    It is not possible to manually focus when this adapter is mounted with all the electrical contacts intact.

    It is AF or bust! No DMF or MF possibilities at all. Also, my 5N reported "not enough power" for a sensor clean with the adapter on!

    This was one lucky shot. The AF worked within ~10-15s to make this!



    Juipter-3 5cm f/1.5 f/2.8, NEX-5N monochrome.



    Quote Originally Posted by k-hawinkler View Post

    PS: With regards to the last image I admire your patience! :-)
    Finally, I found something slower than me (in my current physical condition).
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    Re: Auto focus with anything!

    Thanks Vivek. Please keep up your "Galgenhumor"!
    With best regards, K-H.
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    Re: Auto focus with anything!

    On A6300, the Techart adapter combo, apparently, will focus as fast as a native lens:

    https://www.youtube.com/watch?v=3hBjfk7XUK4

    BTW, I forgot to add one thing. The AF operation is noisy.
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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    On A6300, the Techart adapter combo, apparently, will focus as fast as a native lens:

    https://www.youtube.com/watch?v=3hBjfk7XUK4

    BTW, I forgot to add one thing. The AF operation is noisy.

    Thanks Vivek. Well my hearing is pretty bad too.
    So, I'll probably never notice!

    What other folks have found: Disappointing news on TechArt Pro Leica M to E autofocus adapter: Sony Alpha Full Frame E-mount Talk Forum: Digital Photography Review
    Last edited by k-hawinkler; 9th April 2016 at 19:25.
    With best regards, K-H.

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    Re: Auto focus with anything!

    Well, I just learned that my adapter is in their 2nd batch.
    They already started shipping the 2nd batch to their US warehouse.
    So, I should get it soon.

    My expectation is that the adapter will be an educational experience for me, but also for them.
    It likely will take a few iterations to perfect it.

    I am curious to find out if and what differences there are in focus behavior for different lenses and different scenes and compare notes with others on this forum.

    Hmm, which lens to try out first on A7r2? Summilux 50/1.4? Any suggestions? TIA.
    With best regards, K-H.

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    Re: Auto focus with anything!

    These are the lenses I tried (as mentioned, not on a recommended camera):

    Summarit-M 35/2.5,
    M-Rokkor 40/2
    Jupiter-8 5cm/2
    Jupiter-3 5cm/1.5
    Orion-15 28/6 (works!)
    Elmars 35 and 50 f3.5
    M-Rokkor 90/4

    All light weight lenses.

    I had the feeling that an OM 50/1.2 and a Summicron 75/2 would struggle more.
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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    These are the lenses I tried (as mentioned, not on a recommended camera):

    Summarit-M 35/2.5,
    M-Rokkor 40/2
    Jupiter-8 5cm/2
    Jupiter-3 5cm/1.5
    Orion-15 28/6 (works!)
    Elmars 35 and 50 f3.5
    M-Rokkor 90/4

    All light weight lenses.

    I had the feeling that an OM 50/1.2 and a Summicron 75/2 would struggle more.

    Many thanks Vivek.
    From the lenses you list I only have the AA Summicron 75/2.
    I certainly will test that lens.

    But I don't think AF with the 75/2 will work for Hummingbirds!
    But one never knows for sure without trying.
    We'll see how it does in due course.

    If the focusing motor can handle the weight of the camera and adapter then I could try some really heavy R lenses by supporting the lens on a tripod and remotely firing the shutter.
    With best regards, K-H.

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    Re: Auto focus with anything!

    I received mine yesterday and was testing on a7R 2. My order number was after Vivek's number so it is a little later in the US. It was shipped from CT. It came with firmware ver 2 so that is good as I saw in the Chinese forum that it is just released:
    https://translate.googleusercontent....DZ8RPxAEme94dg

    The af speed was better then I expected. In the low light it is slower and needs faster aperture but day time af was good. I need to test more as I was mostly using lighter glass eg Rokkor-M 28mm 2.8, ZM 50mm 1.5, Summarit 50mm 2.5. I tried just Summarit 90mm 2.5 at night and felt it is slower then the previous batch and then I checked the CV 75mm 2.5 and that is also fast like the 50mm lenses so the weight of the lens is factor. I also had Contarex to M and Canon to M adapters to try other lenses but both adapters did not fit to this adapter. It looks like I should have checked their stock. I am guessing the lighter lenses af better/faster. I tried also afc last night. First focus was slow but then tracking was fast. I need to check it day time.

    Also my camera needed a sensor cleaning and after that I was shooting stopped down skies and noticed an internal ring reflection in the photos which is similar to what I found with the Contax g 45mm with af g adapter that came from the same designer. I still have to process and check it. I have not seen the ring reflection using Hawk's close-up adapter.

    The adapter sticks from the bottom so I added Neewer L bracket to level it.

    Here is my test shots w/ Summarit 50mm 2.5 from today:



    Last edited by serhan; 16th April 2016 at 18:42.
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    Re: Auto focus with anything!

    Many thanks serhan. Much appreciated.

    From the adapters you have, which ones work with the TechArt Pro and which ones don't. TIA.

    Also, did the adapter just show up or did they send you in advance a notification?
    My order number is in the 620s, so my adapter should arrive soon.
    With best regards, K-H.

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    Re: Auto focus with anything!

    Both adapters Canon EF mount to Leica M Mount and Contarex mount to Leica M mount does not fit. The motor at the bottom is thicker then the Sony to m mount distance, so the other adapters are hitting it and do not fit. Only Leica M and LTM lenses I managed to use.



    Quote Originally Posted by k-hawinkler View Post
    Many thanks serhan. Much appreciated.

    From the adapters you have, which ones work with the TechArt Pro and which ones don't. TIA.
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    Re: Auto focus with anything!

    They sent an e-mail saying my order shipped, but there was no tracking number. It came to my post box after 2-3 days. I saw they had a tracking number as they need that to get the payment from paypal but they have not provided that in the e-mail.

    Quote Originally Posted by k-hawinkler View Post
    Many thanks serhan. Much appreciated.

    Also, did the adapter just show up or did they send you in advance a notification?
    My order number is in the 620s, so my adapter should arrive soon.
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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    Thank you, K-H!

    It is not possible to manually focus when this adapter is mounted with all the electrical contacts intact.

    It is AF or bust! No DMF or MF possibilities at all. Also, my 5N reported "not enough power" for a sensor clean with the adapter on!

    This was one lucky shot. The AF worked within ~10-15s to make this!



    Juipter-3 5cm f/1.5 f/2.8, NEX-5N monochrome.





    Finally, I found something slower than me (in my current physical condition).

    Thanks Vivek. Apparently one can manually focus the lens with the adapter mounted. Have focus set to back button and exposure set to shutter button. Then manually focus the lens with its mechanism before exposing.
    With best regards, K-H.
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    Re: Auto focus with anything!

    Thank you, K-H! A simple solution!
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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    Thank you, K-H! A simple solution!
    Thank you Vivek. I think so too.
    I found this on fredmiranda...
    With best regards, K-H.
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    Re: Auto focus with anything!

    Quote Originally Posted by serhan View Post
    Also my camera needed a sensor cleaning and after that I was shooting stopped down skies and noticed an internal ring reflection in the photos which is similar to what I found with the Contax g 45mm with af g adapter that came from the same designer. I still have to process and check it. I have not seen the ring reflection using Hawk's close-up adapter.

    The "ring reflection" is not an internal reflection. It is a software correction in camera. Turn off your automatic lens corrections and it will disappear.
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    Re: Auto focus with anything!

    I just got an email stating:"Your TECHART PRO order from February 10, 2016 is SHIPPED."
    With best regards, K-H.
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    Re: Auto focus with anything!

    Quote Originally Posted by Show Performance View Post
    The "ring reflection" is not an internal reflection. It is a software correction in camera. Turn off your automatic lens corrections and it will disappear.

    Many thanks Show Performance.
    What's a good starting point for setting up an A7t2 for using this adapter?
    TIA.
    With best regards, K-H.

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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    It took about 2 mins to lock focus and trip the shutter.



    Jupiter-3 5cm f/1.5 (f4), NEX-5N monochrome.
    Wonder if anyone will agree, 2 minutes to lock focus is a little too long in my opinion. Wonder why Techart could not use a motor that suited CDAF.

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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    Thank you, K-H!

    It is not possible to manually focus when this adapter is mounted with all the electrical contacts intact.

    It is AF or bust! No DMF or MF possibilities at all. Also, my 5N reported "not enough power" for a sensor clean with the adapter on!

    This was one lucky shot. The AF worked within ~10-15s to make this!



    Juipter-3 5cm f/1.5 f/2.8, NEX-5N monochrome.





    Finally, I found something slower than me (in my current physical condition).

    So based on your tests Vivek, you would not be recommending this Techart adapter for those with older NEX cameras?

  45. #45
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    Re: Auto focus with anything!

    That is correct. Unless you use the latest cameras, avoid this adapter.
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    Re: Auto focus with anything!

    Very interesting tidbit, how to program the adapter.

    http://www.dpreview.com/forums/post/57634146
    With best regards, K-H.

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    Re: Auto focus with anything!

    Interesting! So in what position schould your manual focus ring be? Or doesn't matter at all? Silly Question??
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    Re: Auto focus with anything!

    Quote Originally Posted by Michiel Schierbeek View Post
    Interesting! So in what position schould your manual focus ring be? Or doesn't matter at all? Silly Question??
    Great question Michiel.

    AFAIK, without having the adapter yet, that depends.
    If the movement of the adapter covers the entire focusing range then at infinity.
    Seems to work for 50 mm lenses.

    Otherwise closer to what you want to focus on.

    At least that's what I picked up on. If I am wrong, please, anybody correct me. Thanks.
    With best regards, K-H.
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    Re: Auto focus with anything!

    Quote Originally Posted by Vivek View Post
    That is correct. Unless you use the latest cameras, avoid this adapter.
    On a A7rII it would be better?

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    Re: Auto focus with anything!

    Quote Originally Posted by Michiel Schierbeek View Post
    Interesting! So in what position schould your manual focus ring be? Or doesn't matter at all? Silly Question??
    I received my adapter last Saturday, and have shot several hundred photos since then.

    I've been using "Flexible Spot: S" successfully, the only photos that have not been in focus were the result of user error (i.e., firing without first pressing back-button AF.)

    A few notes:

    Mine apparently came with firmware version 1. However when I looked at the version number, it originally said:

    Lens
    Ver. 02

    So I originally thought it shipped with firmware version 2.

    After updating to version 2, the motor is less 'chirpy' and focus seems a bit slower, but that may just be an initial impression as I just updated it a few minutes ago and have only done a few tests around the house.

    Now, when I go to the Version screen on the camera, it shows:

    Lens
    Ver. 01

    As far as where to put the focus ring on the lens, I leave it on infinity, unless the subject is relatively close.

    For example, with the 50/1.7 C/Y, the minimum focus distance is 0.6m. That's a little long for my preference with SLR lenses (the 50/1.4 C/Y has an MFD of 0.45m for comparison) so the Techart adapter is very useful, as it's in effect a built-in, on-demand, variable extension tube.

    So, if I'm shooting something that is in the range of about 1m to infinity, I leave the lens on infinity.

    If the subject is fairly close, however, say, in the range of 1m or less, I'll turn the focus ring on the lens until things look reasonably sharp in the viewfinder, then hit the back-button AF to lock focus. After a bit of practice this becomes second nature, and the motor in the Techart only has to move very slightly to lock focus.

    The above would be the recommended usage for lenses with floating elements; coarse focus manually, and then press AF button to lock.

    If the lens is NOT at infinity, and you try to AF on something farther away, the Techart might not be able to reach focus. At first I was wondering what was up, but it was just user error. In this situation the motor moves a bit, but never 'beeps' with focus confirmation and the green square doesn't light up. Set the focus ring to infinity and then press the AF button again.

    At first I wasn't able to use focus magnification, but finally figured out that AF/MF Ctrl has to be toggled first.

    So in AF mode, you won't see focus peaking, and you won't be able to magnify. This error will appear:

    “This operation or setting
    is not available as follows

    Focus Mode
    Single-shot AF”


    Toggle to MF and focus peaking will appear, and magnification is then possible.

    My camera has AF/MF Ctrl Toggle set to the Center Button, Focus Magnifier set to C2, and Steady Shot Focal Length set to C4 (trash can.) This arrangement was suggested by Chad (@Show Performance.)

    Hope this helps!
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