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Archive 2016 · Techart PRO AF adapter now In Stock!

joelconner
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p.49 #1 · p.49 #1 · Techart PRO AF adapter now In Stock!

seanj wrote:
Well, the crummy thing about a thread with 48+ pages is that I need to find an answer for why my shots are extremely overexposed and I have to read through these pages hoping I am not the first to ask.

keep your in-camera aperture always set at 2.0 when shooting. Anything else will change the exposure.

Sep 14, 2016 at 03:17 PM

k-h.a.w
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p.49 #2 · p.49 #2 · Techart PRO AF adapter now In Stock!

joelconner wrote:
keep your in-camera aperture always set at 2.0 when shooting. Anything else will change the exposure.

Yup. +1

K-H.

Sep 14, 2016 at 03:18 PM

seanj
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p.49 #3 · p.49 #3 · Techart PRO AF adapter now In Stock!

Okay, that works. Thanks. I thought I had to park my in camera to f/13 since I set f/13 to correspond to my Voigtlander Nokton 35/1.2 II. If I park my in camera settings at f/2, then how does the adapter know which lens I am using?

Sep 14, 2016 at 03:19 PM

k-h.a.w
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p.49 #4 · p.49 #4 · Techart PRO AF adapter now In Stock!

seanj wrote:
Okay, that works. Thanks. I thought I had to park my in camera to f/13 since I set f/13 to recognize my Voigtlander Nokton 35/1.2 II. If I park my in camera settings at f/2, then how does the adapter know which lens I am using?

You first take one shot at the camera setting of F/13. That writes 18mm into Exif.
Then you set F/2 in camera for subsequent shots to get the correct exposure.
Aperture you set manually on the lens.

K-H.

Sep 14, 2016 at 03:22 PM

seanj
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p.49 #5 · p.49 #5 · Techart PRO AF adapter now In Stock!

Ahhh, got it. Thank you so much.

Sep 14, 2016 at 03:27 PM

teh_rebel
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p.49 #6 · p.49 #6 · Techart PRO AF adapter now In Stock!

Can you still manually focus with focus peaking and/or focus magnification with the Techart adapter? When I tried switching the camera to MF, it says about something about this is invalid for the attached lens ... would be nice to switch to manual focusing if AF condition isn't optimal

Sep 14, 2016 at 03:51 PM

k-h.a.w
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p.49 #7 · p.49 #7 · Techart PRO AF adapter now In Stock!

teh_rebel wrote:
Can you still manually focus with focus peaking and/or focus magnification with the Techart adapter? When I tried switching the camera to MF, it says about something about this is invalid for the attached lens ... would be nice to switch to manual focusing if AF condition isn't optimal

Yes, one can. As the TAP disables that one has to enable that with a button. I chose to set one to toggle that.
I have described all my button settings earlier in this thread.

K-H.

Sep 14, 2016 at 03:56 PM

seanj
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p.49 #8 · p.49 #8 · Techart PRO AF adapter now In Stock!

Here's AF at f/1.2. Not too shabby. The lens isn't ultra sharp at f/1.2 anyway, but this is quite acceptable.


	https://s13.postimg.org/6mk1dmg5z/35_1_2_techart_2.jpg

Sep 14, 2016 at 04:01 PM

mark1958
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p.49 #9 · p.49 #9 · Techart PRO AF adapter now In Stock!

Has anyone tried the Voigt 75mm 2.5 or 1.8 with the TechArt?
I have the former but L39 to Sony E adapter so need to get L39 to M adapter to try out.

Sep 15, 2016 at 02:48 AM

mcbroomf
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p.49 #10 · p.49 #10 · Techart PRO AF adapter now In Stock!

mark1958 wrote:
Has anyone tried the Voigt 75mm 2.5 or 1.8 with the TechArt?
I have the former but L39 to Sony E adapter so need to get L39 to M adapter to try out.

https://www.fredmiranda.com/forum/topic/1445543/28#13709271

I think David may have the Heliar as well

Sep 15, 2016 at 06:48 AM

genji
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p.49 #11 · p.49 #11 · Techart PRO AF adapter now In Stock!

joelconner wrote:
keep your in-camera aperture always set at 2.0 when shooting. Anything else will change the exposure.

I had inadvertently allowed the in-camera aperture to slip to f/2.5 but the extra two-thirds of a stop probably compensated for the backlight. Pretty happy about the TAP's ability to nail focus on the eyes though.

Sep 15, 2016 at 06:56 AM

DavidBM
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p.49 #12 · p.49 #12 · Techart PRO AF adapter now In Stock!

mcbroomf wrote:
https://www.fredmiranda.com/forum/topic/1445543/28#13709271

I think David may have the Heliar as well

Yep I've been using the color-heliar on TAP. Works really well. Amazing little lens by f4. Good wide open, but lower contrast and a bit of LoCA. Well worth getting L39 to M for it (the one I bought came with an L39 to M adapter and I was using it with an m to E helicoid)

Sep 15, 2016 at 07:02 AM

mark1958
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p.49 #13 · p.49 #13 · Techart PRO AF adapter now In Stock!

Thanks all. I will get the L39 to M adapter and give it a try. I had liked that lens but been sitting in the storage bag for some time now... Will resurrect to the living once again.

Sep 15, 2016 at 11:32 AM

mark1958
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p.49 #14 · p.49 #14 · Techart PRO AF adapter now In Stock!

Actually I went from primarily non-Sony MF primes to AF Sony lenses when the 24-70/2.8 (which i think is a big but stellar lens) and the 70-200/4. In fact for a small travel pack-- this along with the Leica WATE was almost perfect for most applications. However now I am considering moving back to the small MF with the Techart. So I am considering=== Leica WATE, Zeiss 35mm 1.4 (just received and such a nice small lens), Sonnar 50mm/1.5 (arriving today), Voigt 75mm/2.5 and if i want longer Contax 100-300mm.
I am now upset i sold my Leica 28mm 2.8 R and Leica 90mm.... Oh well. Once i get all together will post comparison photos of the travel groups..

Sep 15, 2016 at 01:20 PM

GMPhotography
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p.49 #15 · p.49 #15 · Techart PRO AF adapter now In Stock!

I jumped around a lot from Nikon to some Canon glass to almost all native and than this TAP hit and I went all in. 3 ZM lenses now

But I still have the GM 24-70 and 85

So for me stuff I have 15,21,35,50,85 all very small

Sep 15, 2016 at 01:26 PM

OpticalFlow
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p.49 #16 · p.49 #16 · Techart PRO AF adapter now In Stock!

teh_rebel wrote:
before sending the a7ii back, took a test shot with the Helios 44M. Came out pretty good as far as focusing goes. This lens was always hard to nail focus wide open

the nikkor 10.5cm/2.5, i couldnt get to work though. it wouldn't autofocus
https://c1.staticflickr.com/9/8125/29586274241_de9396dcd7_o.jpg

Did you prefocus the 105mm roughly? The Techart probably doesn't have enough travel to focus a tele focus lens onto close targets when the lens is set to infinity. Normal and wide lenses require less travel, so typically don't need to be prefocused.

Sep 15, 2016 at 01:32 PM

teh_rebel
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p.49 #17 · p.49 #17 · Techart PRO AF adapter now In Stock!

OpticalFlow wrote:
Did you prefocus the 105mm roughly? The Techart probably doesn't have enough travel to focus a tele focus lens onto close targets when the lens is set to infinity. Normal and wide lenses require less travel, so typically don't need to be prefocused.

Hmm I recall messing with the focusing but might have just moved it from one end (infinity) to the other (MFD). I had to send the A7II back though so dont really have a camera to test it again but have a A7RII on the way. I'll give it another try. The copy I have though, the focus does get tough in the mid-range when I have the adapter on it and attached to the camera so I havent really used it much. When I have the lens off the camera, I can freely move the focusing back and forth. The lens has some weight on it some perhaps when the lens is mounted, its causing it to get stuck in the middle somewhere.

Sep 15, 2016 at 02:02 PM

mjbetch
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p.49 #18 · p.49 #18 · Techart PRO AF adapter now In Stock!

Does it only center focus?

It seems that if I move the focus selector anywhere else, it can't focus properly.

Sep 15, 2016 at 03:00 PM

Seabassius
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p.49 #19 · p.49 #19 · Techart PRO AF adapter now In Stock!

For those looking for the adapter, consider lensrentals. You can try it with your lenses (or theirs) and you can buy it used from them if you decide it is for you. I just returned the one I used for the last 10 days earlier this week. I really liked it once I played around with it for a few days and learned what I needed to do to dial it in. Just not what I'm thinking of getting next.

Here are a couple from the back yard using the TAP and Voightlander 21mm Ultron.


	https://photos.smugmug.com/Photography/Schwab-1/i-XB54kDs/0/X3/untitled-540-X3.jpg


	https://photos.smugmug.com/Photography/Schwab-1/i-fqVrQFm/0/X3/untitled-541-2-X3.jpg

Sep 15, 2016 at 03:04 PM

bluloo
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p.49 #20 · p.49 #20 · Techart PRO AF adapter now In Stock!

mjbetch wrote:
Does it only center focus?

It seems that if I move the focus selector anywhere else, it can't focus properly.

You can definitely move the flexible spot, off center and still have good AF.

Other factors will impact ability to AF as well.
For example is the lighting good, what's the aperture, and is the detail you're focusing on vertical or horizontal?

Sep 15, 2016 at 04:02 PM

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