VOIGTLANDER NOKTON 40mm F1.2 Aspherical User manual

INSTRUCTION MANUAL
NOKTON 40mm F1.2 Aspherical
E-mount
Oct 2017, Ver 1.0COSINA CO., LTD.

Voigtländer E-mount lenses are designed for use on E-mount camera
body. The lenses cover the full frame format. They are manually controlled
lenses so the user sets focus and aperture - the built-in CPU will transmit
the information to the camera body to give the user Exif-data, and
depending on the specification of the camera Auto-lens-correction, 5
axis-Image Stabilization as well as Manual-Focus Assist.
Features of Voigtländer E-mount lens
■ Built-in CPU for Full Frame E-mount camera bodies
■ Lens Construction Design for Digital Sensor
■ All Metal Lens Barrel for long life
■ Smooth Focus Ring for precise focusing

If the user ignores this warning sign and uses the equipment
the wrong way serious injuries and even death might be the
result.
If the user ignores this caution sign it might result in injuries
and damage the equipment.
Never look directly at the sun with a telephoto lens as this
can damage your eyes.
Keep the lens, camera and accessories out of reach of
children.
Store the lens away from direct sunlight and always store
the lens with lens-cap on. Failure to do so can create a re
hazard.
Tips for lens care and safety
WARNING
CAUTION
WARNING
CAUTION
CAUTION
Never touch the lens surface. In case it is dirty or dusty use
commercial lens cleaner or appropriate lens cleaning cloth.
These tips are to protect the user from injury or damaging the lens.

Description of Parts
①
⑨
⑫
⑬
②
③
④
⑤
⑥
⑦⑪
① Lens Hood
② Filter Ring
③ Aperture Control Ring
④ Aperture Ring
⑤ Focus Ring
⑥ Distance Scale
⑦ Mount Index
⑧ Mount
⑨ Aperture Index
⑩ Aperture Scale
⑪ Distance Index
⑫ Depth of Field Scale
⑬ Depth of Field Ring ⑧
⑩

● How to attach/detach the lens
Please refer to the instruction manual for your camera for how to attach/detach
the lens.
* Please make sure to set the power of the camera to “OFF”.
Please hold Depth of Field Ring ⑬ to attach/detach the lens. To attach/detach
the lens while holding other parts of the lens barrel can damage the lens.
● Attaching Lens Hood
Screw the Lens Hood ① to the front of the lens.
● Attaching Filter
1. Screw the lter (Ø58mm) to the front of the lens.
2. Screw the Lens Hood ① into the thread of the lter when using the Lens Hood
① together with the lter.
* Do not screw the lter into the thread of the Lens Hood ① . This may cause vignetting.

● Selective Aperture Control System
You can choose two modes – with or without Click Stops - on the Aperture
Control Ring.
1. Push the Aperture Control Ring ③ towards the Aperture Ring ④ .
2. Turn the Aperture Control Ring ③ 180 degrees.
3. Make sure to align the 2 indexes ⑨ and ⑪ .
* If the white mark on the Aperture Control Ring ③ is in line with the indexes, the lens is
in Click Stop-mode. The yellow mark indicates the Clickless-mode.

How CPU/Contact works
1. Exif Data
Picture can store the Exif data of lens.
(For example, if you use Voigtländer 40mm F1.2 E-mount)
Lens E 40mm F1.2 or Voigtlander NOKTON
40mm F1.2 Aspherical
* Description may be changed depending
on rmware version or other factors.
Focal length 40mm
Maximum Aperture F1.2
Aperture The aperture value you used to take
the picture
* Some camera bodies can not transmit the data of Aperture setting correctly.
2. Lens Correction Data
The lens stores the data for lens correction. You can set Auto Lens
Correction on camera bodies;
Fall o󱐯 Auto / O󱐯
Chromatic Aberration Auto / O󱐯
Distortion Auto / O󱐯
* On some camera bodies, you can not choose Auto Lens Correction Mode. In
that case, a setting depends on the camera.

3. Manual Focus Assist
4. Focus Distance Setting
Focus Distance Setting Indication can be seen on the camera’s LCD
display when the Focus Ring rotation is detected by the camera.
* Please set “MF Mode” to use this function.
* On some camera bodies, you can not use this function.
5. 5-Axis Image Stabilization
The Nokton 40mm F1.2 E-mount lens is compatible with E-mount
cameras with built-in multi-axis Image Stabilization.
Magnied Live View Image will be seen on the camera‘s LCD screen
when the camera detects the Focus Ring rotation. You can choose
duration of the mode by MENU of camera body. Please refer to the
instruction manual of your camera.
* On some camera bodies, you can not use this function.

Product Name NOKTON 40mm F1.2 Aspherical
Focal Length 40mm
Maximum Aperture F1.2
Minimum Aperture F22
Lens Construction 6 groups 8 elements
Angle of View 55°
Aperture Blade 10
Minimum Focus 0.35m
Macro Ratio 1:6.2
Filter Size Ø58mm
Maximum Diameter Approx. Ø70.1mm
Length Approx. 59.3mm
Weight Approx. 420g
Mount E-mount
Aperture Ring Available (Manual Setting)(1/3 stop increments)
Electric Contact Available
Manual Focus Assist Available
Exif Data Available
Auto Lens Correction Possible
●Specications
* Specication and information is subject to change without prior notice.

5-Axis Image Stabilization Possible
* only on camera body with 5-Axis Image Stabilization
Other Selective Aperture Control System
Supplied Accessory Front Cap, Rear Cap, Lens Hood
* Specication and information is subject to change without prior notice.
●Specications