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Techart Pro LM-EA9 Review

Fred Miranda
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p.3 #1 · p.3 #1 · Techart Pro LM-EA9 Review

nehemiahphoto wrote:
@fredmiranda@

Aside from the other numerous benefits Fred, could you share any thoughts on the speed of the new adapter versus the OG TAP? Have you tested them side-by-side with the same body and lens or anything?

I have not tested them side by side but from my recollection, the new adapter seems faster, more accurate and quieter. So, it's not marketing.

Aug 16, 2022 at 12:18 PM

hsiunghsiung
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p.3 #2 · p.3 #2 · Techart Pro LM-EA9 Review

Can the adapter do video with continuous autofocus?

Aug 16, 2022 at 12:49 PM

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p.3 #3 · p.3 #3 · Techart Pro LM-EA9 Review

hsiunghsiung wrote:
Can the adapter do video with continuous autofocus?

No, currently only stills. In video, the adapter focus mode changes to MF.

Aug 16, 2022 at 12:52 PM

pompo
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p.3 #4 · p.3 #4 · Techart Pro LM-EA9 Review

Yes, especially since focus and recompose does not work very well with the 50/1 Noct. The 0.95 version is on the heavy side for this adapter weighing 768 grams. (the official 700 grams is not accurate)

I'm hoping it'll work fine with Noctilux 50 0.95 ! I pre-ordered it!

Aug 16, 2022 at 02:04 PM

nehemiahphoto
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p.3 #5 · p.3 #5 · Techart Pro LM-EA9 Review

Do we know the shipping date?

Aug 16, 2022 at 03:23 PM

Michael Gordon
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p.3 #6 · p.3 #6 · Techart Pro LM-EA9 Review

Fred Miranda wrote:
Hi Michael,

This was added to the LM-EA9's FAQ:

Is there a way that I can have the actual aperture recorded in the EXIF?

Both versions of the Techart Pro adapters require the camera aperture to be set to f/2 before taking a picture to allow proper exposure. With the previous model (LM-EA7), it was possible to write the lens working aperture to the EXIF with the help of exposure compensation, The procedure was to set the aperture on the camera the same as on the lens, then compensate exposure accordingly by using the exposure compensation dial or menu. For example: If...Show more →
Thank you for clarifying. I wish they devised a different method to assign FL's like some chipped adapters.

Aug 16, 2022 at 04:52 PM

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p.3 #7 · p.3 #7 · Techart Pro LM-EA9 Review

pompo wrote:
I'm hoping it'll work fine with Noctilux 50 0.95 ! I pre-ordered it!

The issue with very heavy lenses like the 50/0.95 (768 grams) is that the motors will not be fast. As long as you support the lens with one hand, it should be fine but don't quote me on this.

I'm using the Noctilux 50/1 (version 2) which is 595 grams and it's working fine.

Aug 16, 2022 at 09:21 PM

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p.3 #8 · p.3 #8 · Techart Pro LM-EA9 Review

nehemiahphoto wrote:
Do we know the shipping date?

Their website says: "Ship in early/mid Sept."

The current firmware version is v1.4.

Aug 16, 2022 at 09:22 PM

Fred Miranda
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p.3 #9 · p.3 #9 · Techart Pro LM-EA9 Review

Aug 17, 2022 at 12:45 PM

grahamgibson
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p.3 #10 · p.3 #10 · Techart Pro LM-EA9 Review

Fred Miranda wrote:
The issue with very heavy lenses like the 50/0.95 (768 grams) is that the motors will not be fast. As long as you support the lens with one hand, it should be fine but don't quote me on this.

Great samples!

I’m curious, what’s the user experience using TAP2 and swapping lenses (either alongside other M mount lenses and/or native lenses)? Is it just remembering to reset the aperture to f2? How often is it required to set the focal length? Whenever you turn the camera on? Or when changing lenses?

Aug 17, 2022 at 02:59 PM

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p.3 #11 · p.3 #11 · Techart Pro LM-EA9 Review

grahamgibson wrote:
Great samples!

I’m curious, what’s the user experience using TAP2 and swapping lenses (either alongside other M mount lenses and/or native lenses)? Is it just remembering to reset the aperture to f2? How often is it required to set the focal length? Whenever you turn the camera on? Or when changing lenses?

The current focal length is stored on the adapter so it remains until it's changed. Turning off the camera will not reset the focal length. I'd say if you change lens with a different FL, updating the new focal lens is a good idea in order to get auto IBIS and the correct exif.

Aug 17, 2022 at 03:54 PM

grahamgibson
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p.3 #12 · p.3 #12 · Techart Pro LM-EA9 Review

Fred Miranda wrote:
The current focal length is stored on the adapter so it remains until it's changed. Turning off the camera will not reset the focal length. I'd say if you change lens with a different FL, updating the new focal lens is a good idea in order to get auto IBIS and the correct exif.

Thanks, so if you’re just using a single lens, you can set the focal length once and then never again (even after dismounting the adapter)?

Aug 17, 2022 at 09:10 PM

teraflame
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p.3 #13 · p.3 #13 · Techart Pro LM-EA9 Review

So when are these shipping? I havent gotten any notification

Aug 18, 2022 at 10:21 AM

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p.3 #14 · p.3 #14 · Techart Pro LM-EA9 Review

Thanks for the review. I just ordered one, and plan to use it with a lot of the same lenses you've pictured here - 35mm f/1.4 FLE, 50mm f/1.4 ASPH, 75mm f/1.4 Summilux. Looking forward to seeing how it performs on the A1, though I'll be waiting until mid-September.

Aug 19, 2022 at 01:14 AM

Steve Spencer
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p.3 #15 · p.3 #15 · Techart Pro LM-EA9 Review

pompo wrote:
I'm hoping it'll work fine with Noctilux 50 0.95 ! I pre-ordered it!

Keep in mind that with a lens that fast the thicker cover glass of the Sony cameras will affect the performance of the lens. The Noctilux was designed for thin cover glass (or perhaps no cover glass) and not the relatively thick cover glass of the Sony cameras.

Aug 19, 2022 at 06:58 AM

pompo
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p.3 #16 · p.3 #16 · Techart Pro LM-EA9 Review

what do you mean " with a lens that fast the thicker cover glass of the Sony cameras will affect the performance of the lens."?
The Sony's sensor cover?

But regardless, what does that have to do with the Adapter?

Aug 20, 2022 at 01:41 PM

Steve Spencer
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p.3 #17 · p.3 #17 · Techart Pro LM-EA9 Review

pompo wrote:
what do you mean " with a lens that fast the thicker cover glass of the Sony cameras will affect the performance of the lens."?
The Sony's sensor cover?

But regardless, what does that have to do with the Adapter?

The cover glass on a Sony camera is thicker than a Noctilux f/0.95 or f/1 was designed for. That will effect the performance of the lens on a Sony camera and the effect is pronounced on faster glass even in the center. See this link:

https://www.lensrentals.com/blog/2014/07/sensor-stack-thickness-part-iii-the-summary/

Look in that first chart on that link what even an extra mm of sensor cover glass does to contrast for an f/1 or f/0.95 lens and that is in the center not on the edges. My view is that is way too big of a performance hit when shooting the lens at wide apertures to make it a viable choice for a Sony camera; your MMV of course. It is relevant to the adapter because the adapter only lets you use the lens on a Sony camera, and unless you get the sensor cover glass modified I would not even think about using a Noctilux on a Sony camera.

Aug 20, 2022 at 02:42 PM

Fred Miranda
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p.3 #18 · p.3 #18 · Techart Pro LM-EA9 Review

Steve Spencer wrote:
The cover glass on a Sony camera is thicker than a Noctilux f/0.95 or f/1 was designed for. That will effect the performance of the lens on a Sony camera and the effect is pronounced on faster glass even in the center. See this link:

https://www.lensrentals.com/blog/2014/07/sensor-stack-thickness-part-iii-the-summary/

Look in that first chart on that link what even an extra mm of sensor cover glass does to contrast for an f/1 or f/0.95 lens and that is in the center not on the edges. My view is that is way too big of a performance hit when shooting the lens at wide...Show more →

This is all true and relevant to all M to E adapters. In the case of the Noctilux 50/1 or 50/0.95, these two lenses have strong outwards field curvature by design even on the M body. This effect gets amplified a bit further when adapting to the Sony.

Aug 20, 2022 at 03:54 PM

nehemiahphoto
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p.3 #19 · p.3 #19 · Techart Pro LM-EA9 Review

Steve Spencer wrote:
The cover glass on a Sony camera is thicker than a Noctilux f/0.95 or f/1 was designed for. That will effect the performance of the lens on a Sony camera and the effect is pronounced on faster glass even in the center. See this link:

https://www.lensrentals.com/blog/2014/07/sensor-stack-thickness-part-iii-the-summary/

Look in that first chart on that link what even an extra mm of sensor cover glass does to contrast for an f/1 or f/0.95 lens and that is in the center not on the edges. My view is that is way too big of a performance hit when shooting the lens at wide...Show more →

I’m going to respectfully disagree with you here Steve. I have a modified Sony, and a stock Sony. Noct 50/1 is definitely a bit worse on the stock, but that lens is optically horrible anyway, so I’m not really sure you’re losing much. Not really the point of the lens—the signature isn’t appreciably altered IMO.

Can’t speak to the 50/.95 Noct though.

Aug 20, 2022 at 04:09 PM

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p.3 #20 · p.3 #20 · Techart Pro LM-EA9 Review

nehemiahphoto wrote:
...that lens is optically horrible anyway

In my Voigtlander 50/1 Nokton review, I posted lots of rendering and resolution samples comparing the Nokton 50/1, Leica 50/0.95 and 50/1 versions. I don't think the two Leica lenses are far apart but the 0.95 performs better in terms of resolution/contrast. Their rendering is quite unique though.

Aug 20, 2022 at 04:14 PM

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