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Techart PRO FAQ (LM-EA9)

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p.6 #1 · p.6 #1 · Techart PRO FAQ (LM-EA9)

DavidBM wrote:
I’ve had surprisingly good results on many lenses with A7r5, which suggests but does not guarantee thatA7c2 and A7cR would do okay, since the share the “AI” processor…

Is your EA9 firmware version 1.6, David? It's great to hear that it functions well on the A7RV. Your assumption that it will also perform well on the new A7C cameras seems logical.

Sep 03, 2023 at 04:27 PM

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p.6 #2 · p.6 #2 · Techart PRO FAQ (LM-EA9)

Fred Miranda wrote:
Is your EA9 firmware version 1.6, David? It's great to hear that it functions well on the A7RV. Your assumption that it will also perform well on the new A7C cameras seems logical.

I think it’s 1.5…

Sep 03, 2023 at 10:06 PM

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p.6 #3 · p.6 #3 · Techart PRO FAQ (LM-EA9)

BastianK wrote:
Still on FW 1.4 (to be able to fix the adapters position by using AF/MF Ctrl Toggle on the camera) still working well.
Just tried it with the VM 75mm 1.9 which seems to work pretty good.

To those that have adapters with the issues, have any of them being sold through Techart/B&H directly?

Yes. I purchased my adapter new from B&H. Finally got he updater working and tried all of the suggestions (eg f/90, revert to 1.5 and 1.4) but nothing works for AF. MF OK, but I can do that with a dumb adapter. Got an RMA from B&H and will return to them for refund.

Sep 04, 2023 at 08:13 AM

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p.6 #4 · p.6 #4 · Techart PRO FAQ (LM-EA9)

Scho wrote:
Yes. I purchased my adapter new from B&H. Finally got he updater working and tried all of the suggestions (eg f/90, revert to 1.5 and 1.4) but nothing works for AF. MF OK, but I can do that with a dumb adapter. Got an RMA from B&H and will return to them for refund.

Did the adapter's autofocus function operate initially for a period and then stop working?

Sep 04, 2023 at 11:15 AM

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p.6 #5 · p.6 #5 · Techart PRO FAQ (LM-EA9)

Yes it worked for a few frames and thereafter just not able to AF. I should have noted that all of this initial testing has been with an A6000 (monochrome converted). I do have a Sony a7cR on order and thinking that perhaps I should wait until that comes in and see if it works on the new camera., The A6000M does work with an old TA-GA3 and Contax G lenses and also with a Fringer CN-SE and Contax N lenses.

Sep 04, 2023 at 01:36 PM

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p.6 #6 · p.6 #6 · Techart PRO FAQ (LM-EA9)

Scho wrote:
Yes it worked for a few frames and thereafter just not able to AF. I should have noted that all of this initial testing has been with an A6000 (monochrome converted). I do have a Sony a7cR on order and thinking that perhaps I should wait until that comes in and see if it works on the new camera., The A6000M does work with an old TA-GA3 and Contax G lenses and also with a Fringer CN-SE and Contax N lenses.

Mine had AF issues but the reset on an earlier firmware fixed it. It was great on the A6100, 6600, A7C, A7 IV and especially the A9.
Another option is to try opening the adapter and checking if the screws holding the 4 motors are tight. Some people on this forum mentioned that if these screws are loose, autofocus might not function correctly.

Sep 04, 2023 at 02:38 PM

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p.6 #7 · p.6 #7 · Techart PRO FAQ (LM-EA9)

Thanks Fred. How far back did you have to go for stable AF? I tried v1.4 and 1.5 (with the F/90 reset procedure) and had no effect on AF.

Sep 04, 2023 at 02:56 PM

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p.6 #8 · p.6 #8 · Techart PRO FAQ (LM-EA9)

Scho wrote:
Thanks Fred. How far back did you have to go for stable AF? I tried v1.4 and 1.5 (with the F/90 reset procedure) and had no effect on AF.

I downgraded to version 1.5. First, I took a picture at f/90, then turned off the camera. When I turned it back on, I switched to f/2 and tried AF. The first two attempts didn't work, but after repeating the process three times, the AF started working normally.

Later on, I downgraded to version 1.4, and it has been working well for a while, even during extensive testing. I prefer version 1.4 because it allows the lens carrier to stay in position when I activate manual focus.

Sep 04, 2023 at 03:01 PM

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p.6 #9 · p.6 #9 · Techart PRO FAQ (LM-EA9)

Thanks again Fred, but I have been unable to reproduce your success with this adapter. I will not fool around with hardware disassembly. I expect TechArt to provide me with fully functional hardware and I am sure that B&H would not consider refunding after that kind of procedure. It is going back to B&H tomorrow. If I see that people are having success with the new a7cR and TAP II I will reconsider.

Sep 04, 2023 at 03:32 PM

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p.6 #10 · p.6 #10 · Techart PRO FAQ (LM-EA9)

Scho wrote:
Thanks again Fred, but I have been unable to reproduce your success with this adapter. I will not fool around with hardware disassembly. I expect TechArt to provide me with fully functional hardware and I am sure that B&H would not consider refunding after that kind of procedure. It is going back to B&H tomorrow. If I see that people are having success with the new a7cR and TAP II I will reconsider.

Perhaps your copy was truly defective because it does not seem to be a software issue.

Sep 05, 2023 at 05:31 PM

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p.6 #11 · p.6 #11 · Techart PRO FAQ (LM-EA9)

I finally have the LM-EA9 working! There was nothing wrong with the adapter. It was the Sony A6000M that I was using for testing. I switched to a Sony A6400 and it works well with the adapter using v 1.6. The older A6000 only has contrast based AF (no PD) which is not (or barely) usable with the EA9 in AF mode.

Sep 07, 2023 at 07:16 PM

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p.6 #12 · p.6 #12 · Techart PRO FAQ (LM-EA9)

Scho wrote:
I finally have the LM-EA9 working! There was nothing wrong with the adapter. It was the Sony A6000M that I was using for testing. I switched to a Sony A6400 and it works well with the adapter using v 1.6. The older A6000 only has contrast based AF (no PD) which is not (or barely) usable with the EA9 in AF mode.

Thanks for letting me know. It turns out there was a misunderstanding because it only works with PDAF, but the good news is that the adapter wasn't defective.

Sep 12, 2023 at 12:36 AM

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p.6 #13 · p.6 #13 · Techart PRO FAQ (LM-EA9)

I think that I was dimly (at 86 my memory is fading a little) aware of that limitation but what kept me trying was the fact that the A6000 did work fine with the old Techart adapter for Contax G lenses and B&H listed the A6000 as compatible with TAP II.

Sep 12, 2023 at 07:17 AM

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p.6 #14 · p.6 #14 · Techart PRO FAQ (LM-EA9)

I have a A7C and the EA9 adapter. Sitting down with my small assortment of lenses I can report the Canon LTM 50mm f/1.2 won’t mount. It hits the locking button. My Contax G45 m mount works well and is probably my favorite lens to use these days. I also have a s mount Nikon 50mm f/1.4 lens with an Amedeo adapter. I was happy to see this lens does well on the Sony and is, to my delight, sharper than I recall it was on a m240 at f/2.

Sep 21, 2023 at 11:35 AM

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