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Archive 2016 · Techart PRO AF adapter now In Stock!

tammons
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p.19 #1 · p.19 #1 · Techart PRO AF adapter now In Stock!

The electronics in mine leaks like a sieve, apparently, unless it was stuck with bluetooth on.
It had already been FW upgraded when I got it so I did not attempt it until tonight.

Will know in teh morning.

Aug 23, 2016 at 09:27 PM

d-intrigue
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p.19 #2 · p.19 #2 · Techart PRO AF adapter now In Stock!

There have been reports of battery drain, but it appears many users are not experiencing this. Maybe there is some other setting that causes this (i.e., a firmware bug?)

For example, I always use AF-S. Maybe there is more drain when in AF-C mode.

Aug 23, 2016 at 09:32 PM

tammons
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p.19 #3 · p.19 #3 · Techart PRO AF adapter now In Stock!

Since I had several commlites drain the battery and one not, now hear some LMEA7s drain and some don't, my bet is on cheap Chinese electronics components.

The commlites I had that were bad all were different. You would think if it was a common problem that they would all drain/leak down the same amount, but that was not the case.

The worst of the commlites was about 10-11% over night, another one about 5-6% and the next maybe 3-4% and one did not leak at all.

I wish MB would create one of these LMEA7 adapters.

Aug 23, 2016 at 10:09 PM

GMPhotography
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p.19 #4 · p.19 #4 · Techart PRO AF adapter now In Stock!

Okay I just tried a quick test. I was wondering if you used the camera aperture dial to input the Exif data of what the aperture ring corespondence too. So let's say you shot aperture ring at 5.6 you also input that 5.6 on the camera dial. Well I tried it but when I got to f8 the exposure was blowing out so it did not work. I noticed this the other day when I set a shot to 5.6 on the camera by accident and sure enough the EXif data for 5.6 was there in the shot. Now I used flash so even though it was okay I think the flash really reads the stopped down aperture anyway and puts out enough light to compensate. So in real natural light this won't work after 5.6.

Anyway worth a try but it may really screw someone up so I don't recommend it.

I don't really care overall but when I test it's nice to see that Exif aperture ring in the data. But hey I can count pretty good too.

Aug 24, 2016 at 08:30 AM

tammons
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p.19 #5 · p.19 #5 · Techart PRO AF adapter now In Stock!

Good news.

Updated the firmware yesterday, charged the battery, let it sit overnight and now it's still at 100%.

So I can only guess that it was stuck in bluetooth mode.

I would assume that the shop I bought it from, (not Techart) had improperly updated the firmware and some how managed to get it stuck in BT mode.

At any rate issue resolved.

Aug 24, 2016 at 08:44 AM

GMPhotography
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p.19 #6 · p.19 #6 · Techart PRO AF adapter now In Stock!

Good news.

Aug 24, 2016 at 08:51 AM

d-intrigue
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p.19 #7 · p.19 #7 · Techart PRO AF adapter now In Stock!

Interesting! That is good news. So my theory was not completely off-base.

Although there is really no way to improperly update the firmware. It either updates or it doesn't...

Edited on Aug 24, 2016 at 08:53 AM · View previous versions

Aug 24, 2016 at 08:52 AM

tammons
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p.19 #8 · p.19 #8 · Techart PRO AF adapter now In Stock!

And something to remember. I never would have thought that it was stuck on BT.
Could have come from the factory that way.

Aug 24, 2016 at 08:53 AM

tammons
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p.19 #9 · p.19 #9 · Techart PRO AF adapter now In Stock!

Now I am wondering if being in BT mode while shooting in AF-S mode affected the accuracy.

Will have to test eventually.

Aug 24, 2016 at 08:54 AM

AGeoJO
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p.19 #10 · p.19 #10 · Techart PRO AF adapter now In Stock!

I dusted off several Leica-M lenses and I have been playing with the them using the Techart adapter since yesterday. I must admit that it works really, really well and I am pleased with the result.

I was able to change the FL from one lens to the other but according the chart provided by Techart, the maximum aperture for a 50mm lens is f/1.4 but I couldn't get that. It is stuck at f/2.0. My Techart FW is 3.0, BTW. Has that been the same case with everyone here and is there a way to get it to show f/1.4 for the 50mm setting? Thank you very much!

Aug 24, 2016 at 09:57 AM

Fred Miranda
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p.19 #11 · p.19 #11 · Techart PRO AF adapter now In Stock!

AGeoJO wrote:
I dusted off several Leica-M lenses and I have been playing with the them using the Techart adapter since yesterday. I must admit that it works really, really well and I am pleased with the result.

I was able to change the FL from one lens to the other but according the chart provided by Techart, the maximum aperture for a 50mm lens is f/1.4 but I couldn't get that. It is stuck at f/2.0. My Techart FW is 3.0, BTW. Has that been the same case with everyone here and is there a way to get it to show f/1.4...Show more →

With TechArt Pro, you cannot set a "camera" aperture larger than f/2.
However, f/2 is just a number and not the real shooting aperture. You must set your shooting aperture on the lens and always keep the camera aperture at f/2. If you change it to another aperture during your normal shooting, images will be overexposed. For example, if changing from f/2 to f/4, your images will be 2 stops overexposed...Think of it as the default shooting setting for the adapter (f/2) and not the real lens aperture.

If you want to change the FL for auto IBIS and EXIF, you must go from f/2 to on of the pre-set apertures. (Example f/25 for 50mm), take a picture and then always remember to return to "f/2".

Aug 24, 2016 at 12:08 PM

AGeoJO
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p.19 #12 · p.19 #12 · Techart PRO AF adapter now In Stock!

Fred Miranda wrote:
With TechArt Pro, you cannot set a "camera" aperture larger than f/2.
However, f/2 is just a number and not the real shooting aperture. You must set your shooting aperture on the lens and always keep the camera aperture at f/2. If you change it to another aperture during your normal shooting, images will be overexposed. For example, if changing from f/2 to f/4, your images will be 2 stops overexposed...Think of it as the default shooting setting for the adapter (f/2) and not the real lens aperture.

If you want to change the FL for auto IBIS and EXIF, you...Show more →

Thanks, Fred. Yes, I was able to change the FL according to the various lenses used alright using the method described in the manual but according to the chart in the manual though the maximum aperture for the exif is f/1.4 and not f/2. Apparently, the chart is not correct/true then. No big deal and like you said, the actual aperture is set at the lens anyway.

Aug 24, 2016 at 12:19 PM

d-intrigue
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p.19 #13 · p.19 #13 · Techart PRO AF adapter now In Stock!

The adapter will not save the shooting aperture values in EXIF as it has no way of knowing what the lens aperture is set to.

I do not know what the 'Max Aperture' column means in this context.


	http://restoration35.com/IMG_2694.jpeg

Aug 24, 2016 at 12:22 PM

Fred Miranda
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p.19 #14 · p.19 #14 · Techart PRO AF adapter now In Stock!

d-intrigue wrote:
The adapter will not save the shooting aperture values in EXIF as it has no way of knowing what the lens aperture is set to.

I do not know what the 'Max Aperture' column means in this context.

http://restoration35.com/IMG_2694.jpg

Actually if you set the camera aperture to f/2.8 for example, it does get saved to the EXIF. However, your image will be overexposed 1-stop.

I'm not sure about this but I think the maximum aperture column on that chart means that a lens can't be faster than what's allowed there. If it is, exposure may not work properly.

So, if you have a 50/1.2 lens for example, it may not work properly. I didn't test, so I don't know.

Aug 24, 2016 at 12:31 PM

AGeoJO
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p.19 #15 · p.19 #15 · Techart PRO AF adapter now In Stock!

d-intrigue wrote:
The adapter will not save the shooting aperture values in EXIF as it has no way of knowing what the lens aperture is set to.

I do not know what the 'Max Aperture' column means in this context.

http://restoration35.com/IMG_2694.jpg

Yes, I am aware that the adapter will not save the shooting aperture alright but I was under the impression that the maximum aperture for the 50mm would be f/1.4. Again, based on that chart in the manual it should, right? I was just curious whether it is actually the case but no big deal. Thank you!

Aug 24, 2016 at 12:32 PM

bluloo
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p.19 #16 · p.19 #16 · Techart PRO AF adapter now In Stock!

Odd stuff. Overnight Sony battery lost over 10% charge in a day, where the previous night it lost nothing.

Aug 24, 2016 at 12:34 PM

d-intrigue
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p.19 #17 · p.19 #17 · Techart PRO AF adapter now In Stock!

Yes it gets confusing when there are 'camera apertures' and 'lens apertures.'

Perhaps the 'Max Aperture' is indeed as you describe...although I've used the 35/1.4 ZM with no problems at f/1.4 and max aperture is listed as f/2.

Aug 24, 2016 at 12:35 PM

AGeoJO
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p.19 #18 · p.19 #18 · Techart PRO AF adapter now In Stock!

Fred Miranda wrote:
Actually if you set the camera aperture to f/2.8 for example, it does get saved to the EXIF. However, your image will be overexposed 1-stop.

I'm not sure about this but I think the maximum aperture column on that chart means that a lens can't be faster than what's allowed there. If it is, exposure may not work properly.

So, if you have a 50/1.2 lens for example, it may not work properly. I didn't test, so I don't know.

Fred, I tried my Noctilux with that adapter and the exposure was normal and not overexposed. So, I really don't know what the maximum aperture in the chart means.

Aug 24, 2016 at 12:36 PM

Fred Miranda
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p.19 #19 · p.19 #19 · Techart PRO AF adapter now In Stock!

d-intrigue wrote:
Yes it gets confusing when there are 'camera apertures' and 'lens apertures.'

Perhaps the 'Max Aperture' is indeed as you describe...although I've used the 35/1.4 ZM with no problems at f/1.4 and max aperture is listed as f/2.

True, same here. I will ask Kevin. (techart)

Aug 24, 2016 at 12:37 PM

bluloo
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p.19 #20 · p.19 #20 · Techart PRO AF adapter now In Stock!

The documentation, for an otherwise extremely useful piece of tech, borders on a war crime (as these things go).

Aug 24, 2016 at 12:41 PM

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