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Techart PRO AF adapter now In Stock!
  
 
Jeff Kott
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p.71 #1 · p.71 #1 · Techart PRO AF adapter now In Stock!


genji wrote:
Fingers crossed that they can crack Eye AF.


+1

I've become so reliant on Eye AF, that this is the only thing holding me back from getting a TAP.




Dec 21, 2016 at 06:04 PM
VeniceBeach
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p.71 #2 · p.71 #2 · Techart PRO AF adapter now In Stock!


Is it true that the Summicron DR will only work in the close focus range with the Tech Art?

-Bill



Dec 23, 2016 at 12:19 PM
brick33308
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p.71 #3 · p.71 #3 · Techart PRO AF adapter now In Stock!


I've been giving the TAP a workout for about a week with my ZM 35 1.4 while wandering Budapest, Austria and Germany, and either I have a bad copy or else for me it's terribly underwhelming. It only works the AF-C, flexible-M on my A7Rii about 20% of the time where I see the little moving green boxes. Other times I hear the motor working but I'm seeing nothing telling me it is focusing, and other times there's neither any sound nor little green boxes. On the brighter side however, I'm getting better with and enjoy using manual focus on this lens. The good news is that my lens is tack razor sharp when in focus, but the bad news is that TAP just isn't cutting it for me. So my question is whether this is normal behavior for TAP or if I have a defective one or am I not using it properly?


Dec 23, 2016 at 02:42 PM
candreyo
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p.71 #4 · p.71 #4 · Techart PRO AF adapter now In Stock!


jankap wrote:
Did you experience light leaking near the wobble?
Jan


Not that I can recall, no.
Adapter has been sent to Techart since, spare appears to be holding up so far.



Dec 23, 2016 at 03:14 PM
CE33
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p.71 #5 · p.71 #5 · Techart PRO AF adapter now In Stock!


brick33308 wrote:
I've been giving the TAP a workout for about a week with my ZM 35 1.4 while wandering Budapest, Austria and Germany, and either I have a bad copy or else for me it's terribly underwhelming. It only works the AF-C, flexible-M on my A7Rii about 20% of the time where I see the little moving green boxes. Other times I hear the motor working but I'm seeing nothing telling me it is focusing, and other times there's neither any sound nor little green boxes. On the brighter side however, I'm getting better with and enjoy using manual focus on
...Show more

It's done well with most of the lenses I've used on the A6300/A6500, but those are different cameras. I do have one 15mm lens that performs poorly. Have you tried it with other lenses and updated to the latest firmware via the iOS or Android app?



Dec 23, 2016 at 07:16 PM
navmannz
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p.71 #6 · p.71 #6 · Techart PRO AF adapter now In Stock!


brick33308 wrote:
I've been giving the TAP a workout for about a week with my ZM 35 1.4 while wandering Budapest, Austria and Germany, and either I have a bad copy or else for me it's terribly underwhelming. It only works the AF-C, flexible-M on my A7Rii about 20% of the time where I see the little moving green boxes. Other times I hear the motor working but I'm seeing nothing telling me it is focusing, and other times there's neither any sound nor little green boxes. On the brighter side however, I'm getting better with and enjoy using manual focus on
...Show more

The only time I've encountered this with my ZM 35 is when I've manually focused closer to properly deploy the floating elements, and then forgotten to return it to infinity focus when aiming at something further away. John



Dec 23, 2016 at 07:31 PM
irsan
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p.71 #7 · p.71 #7 · Techart PRO AF adapter now In Stock!


joe256 wrote:
I have a number of Nikon G lenses that I would like to use with my A7RII. Is there any aperture control Nikon G to LM adapter that will work on the Techart? I have read all 54 pages of this thread and apologies if I missed the answer

I use generic adapter of Nikon G to EOS, and stack it with EOS to LM.
So far those stacked adapters did the job well with TAP




Jan 03, 2017 at 11:30 AM
joe256
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p.71 #8 · p.71 #8 · Techart PRO AF adapter now In Stock!


irsan wrote:
I use generic adapter of Nikon G to EOS, and stack it with EOS to LM.
So far those stacked adapters did the job well with TAP



Thanks for the reply. Subsequent to my post, I found that the Leicaist Nikon G adapter now sold on the TAP site also works.



Jan 03, 2017 at 04:39 PM
newst
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p.71 #9 · p.71 #9 · Techart PRO AF adapter now In Stock!


brick33308 wrote:
I've been giving the TAP a workout for about a week with my ZM 35 1.4 while wandering Budapest, Austria and Germany, and either I have a bad copy or else for me it's terribly underwhelming. It only works the AF-C, flexible-M on my A7Rii about 20% of the time where I see the little moving green boxes. Other times I hear the motor working but I'm seeing nothing telling me it is focusing, and other times there's neither any sound nor little green boxes. On the brighter side however, I'm getting better with and enjoy using manual focus on
...Show more

You may be using too small of an aperture. My experience has been that depending on the available light the TAP starts hunting and becomes progressively less responsive from f/2.8 and down. It's not a low light performer. That's why I have a button programmed to take me quickly to manual focus mode.



Jan 22, 2017 at 09:22 PM
brick33308
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p.71 #10 · p.71 #10 · Techart PRO AF adapter now In Stock!


newst wrote:
You may be using too small of an aperture. My experience has been that depending on the available light the TAP starts hunting and becomes progressively less responsive from f/2.8 and down. It's not a low light performer. That's why I have a button programmed to take me quickly to manual focus mode.


I had this problem opened all the way up at 1.4



Jan 23, 2017 at 01:06 PM
 

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newst
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p.71 #11 · p.71 #11 · Techart PRO AF adapter now In Stock!


brick33308 wrote:
I had this problem opened all the way up at 1.4


So it wasn't a low light issue. I have some lenses that just don't work well with the TAP. Your 1.4/35 may just fall into that category.



Jan 23, 2017 at 07:41 PM
brick33308
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p.71 #12 · p.71 #12 · Techart PRO AF adapter now In Stock!


newst wrote:
So it wasn't a low light issue. I have some lenses that just don't work well with the TAP. Your 1.4/35 may just fall into that category.


apparently I'm the only one. There's a whole thread on the ZM 35 1.4 where everyone reports how well that lens operates with the TAP.



Jan 24, 2017 at 01:08 PM
erekose
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p.71 #13 · p.71 #13 · Techart PRO AF adapter now In Stock!


I am waiting for the delivery of the Techart PRO, which is taking longer than expected because of the Chinese New Year Holiday

One of the main reasons I finally pulled the trigger is I hope to solve a problem I have with the Contax C/Y 35-70/3.4 when using it on a tripod and a polarizer ... given the push-pull / rotating-front-element nature of the lens it is a PITA to achieve perfect focus AND fine tune the polarizing effect WHILE preserving a carefully selected framing.

I plan on focusing at f/3.4 with the polarizer in place: do you think the Techart will be able to focus in this scenario?



Feb 02, 2017 at 12:33 PM
erekose
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p.71 #14 · p.71 #14 · Techart PRO AF adapter now In Stock!


Mmmhhh, no answers .. and I was also going to query about using a similar setup with an ND filter in place of the polarizer ...


Feb 03, 2017 at 12:05 PM
newst
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p.71 #15 · p.71 #15 · Techart PRO AF adapter now In Stock!


I don't have the lens and haven't tried the TAP with a zoom lens (I'm really a prime lens kind of guy) but the one insight I can provide is the TAP works a lot better with a lot of light and often gives me problems when I get below f/2.8 so shooting the zoom at f/3.5 might be a problem.


Feb 03, 2017 at 01:57 PM
Charlie N
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p.71 #16 · p.71 #16 · Techart PRO AF adapter now In Stock!


brick33308 wrote:
apparently I'm the only one. There's a whole thread on the ZM 35 1.4 where everyone reports how well that lens operates with the TAP.


are you pre-focused passed your subject? TAP may not have enough movement depending on where you're pre-focused. I use mainly the rokinon 85f1.4 and whenever I run into focus issues, that's usually the case. I've also tried TAP with an OM 24 f2.8 and 200 f5, both seem to work fine.

by it's nature, you kind of have to fiddle with prefocus settings of the lens for TAP to work. you can try updating firmware if not done already.



Feb 03, 2017 at 02:08 PM
newst
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p.71 #17 · p.71 #17 · Techart PRO AF adapter now In Stock!


It isn't posted on the Techart Pro webpage yet but there is a version 5 update to the TAP app. It is shown in the cellphone download app.

It downloaded and installed just fine. My A7II works well with it. I just don't know yet exactly what it is meant to correct/improve.



Feb 15, 2017 at 10:03 AM
bluloo
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p.71 #18 · p.71 #18 · Techart PRO AF adapter now In Stock!


newst wrote:
It isn't posted on the Techart Pro webpage yet but there is a version 5 update to the TAP app. It is shown in the cellphone download app.

It downloaded and installed just fine. My A7II works well with it. I just don't know yet exactly what it is meant to correct/improve.


Mostly a battery drain "fix".
Yeah, it's being discussed here:

http://www.fredmiranda.com/forum/topic/1475559

and in the FAQ thread too, I think.



Feb 15, 2017 at 03:48 PM
genji
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p.71 #19 · p.71 #19 · Techart PRO AF adapter now In Stock!


bluloo wrote:
Mostly a battery drain "fix".
Yeah, it's being discussed here:

http://www.fredmiranda.com/forum/topic/1475559

and in the FAQ thread too, I think.


Except, according to many who have installed it, the battery drain issue doesn't appear to have been "fixed".



Feb 15, 2017 at 08:46 PM
Fred Miranda
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p.71 #20 · p.71 #20 · Techart PRO AF adapter now In Stock!


So far I'm not sure what FW 5.0 really fixed/improved. I'm still waiting from TechArt for a response.


Feb 15, 2017 at 08:58 PM
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