I had to grind down the front of my Sunway L bracket bottom horizontal plate for the TechArt to actually go on the body. The Sunway comes up on the body in the front so I needed clearance for the adapter to go on.
I usually don't use this adapter for tripod shooting but when I do, I just add this little plate (below link) to my L-bracket. It's not ideal but works if needed.
I have 3 different Nikon F to Leica M adapters to attach my Noct-Nikkor 58/1.2 lens to the TechArt adapter and made the following observations with regards to infinity focusing.
IBIS ON, Manual, IBIS FL set to 60mm. FL recorded in Exif is 50mm (60mm not available to select).
• Nikon - L/M K&F CONCEPT adapter successfully autofocuses to infinity for all apertures f/1.2 through f/16.
• The other 2, labeled and FotGioX Nikon-L/M and Nikon-LM JAPAN, don't.
• One cannot successfully autofocus for f/1.2, 1.4, 2, 2.8, and 4.
• The other cannot successfully autofocus for f/2 and 2.8.
In contrast to these two adapters with a bit of play, the Nikon - L/M K&F CONCEPT adapter fits tightly onto the TechArt adapter and the Noct-Nikkor 58/1.2 lens.
An aperture of f/8 seems to give the sharpest image.
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.
I got an answer from techart regarding their Max aperture chart.
"Hi Fred,
The reason for the max. aperture column existing in the manual is because
of the initial intention of changing the aperture value record into EXIF
by using the app.
However, at the end we found that the exposure were changed if we set the
f-stop to value other than wide open. We are still trying to figure out
why and so the aperture adjustment function is now blocked."
I need to buy an LTM/L39 to M mount adapter for my Voigtlander lenses in LTM mount to be used with the Techart Pro. When I was looking for the adapter, I saw 3 options: (28/90) or (50/75) or (35/135). What do those numbers mean and which one should I get for my 35mm 1.7 Ultron or 50mm 1.5 or 75mm 2.5? Are those focal lengths? Should I get the 35/135 because it covers almost every focal lengths I have?