Cosina Voigtlander NOKTON 23mm F1.2 Aspherical... User manual

INSTRUCTION MANUAL
NOKTON 23mm F1.2 Aspherical
X-mount
Jly 2022, Ver 1.2COSINA CO., LTD.

Thank you for purchasing a Voigtlander product. The Voigtlander X-mount series
is an interchangeable lens designed exclusively for X-mount which covers the
APS-C frame size. The optical system is optimized to meet the specications of a
digital image sensor.
This product features manual focus and mechanical interlocking manual
apertures. However, the communication functions using electronic contacts * 1
reect the lens data in the Exif information.
It also has a built-in distance encoder, so you can make images using the focus
check function and the distance index bar. It further supports models equipped
with an in-body image stabilization function.
Features of the X-mount series
■ Equipped with electronic contacts * 1 Compatible with APS-C X mount
■ Optical design optimized for X-mount sensor
■ Highly rigid and durable all-metal lens barrel
■ Manual focus for reliable focusing
* 1 This product is equipped with electronic contacts, but there
are restrictions on the cameras which can perform electronic
communications. Please check the URL (QR code) below for models that
support electronic communication.
www.cosina.co.jp/seihin/voigtlander/english/

Tips for lens care and safety
If the user ignores this warning and uses the equipment
incorrectly, serious injuries and even death may 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 the reach of
children.
Store the lens away from direct sunlight and always store
the lens with lens-cap on. Failure to do so may create a re
hazard.
WARNING
CAUTION
WARNING
CAUTION
CAUTION
These tips are to protect the user from injury or damaging the lens.

Precautions for use
This product is equipped with electronic contacts, but there are restrictions on
certain functions the cameras can perform. Please check the URL (QR code below)
for models that support electronic communications.
This product is intended to be used with the X-mount camera body.
Please note that using it with teleconverters, mount adapters, macro adapters,
and other accessories, may cause problems.
Never touch the lens surface. In case it is dirty or dusty use commercially available
lens cleaners or appropriate lens cleaning cloth.
Please check here for electronic communication compatible
camera information.
www.cosina.co.jp/seihin/voigtlander/english/

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

● 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 the Depth of Field Ring ⑫ to attach/detach the lens. If you attach/
detach the lens while holding other parts of the lens barrel it may damage the
lens.
● Attaching Lens Hood
Screw the Lens Hood ① to the front of the lens.
If the hood is di󱐰cult to unscrew, trying to unscrew it with
too much force may cause the hood to warp and then the
situation will be worse. Please only gently press the rim of
the hood towards the lens when you turn it.
● Attaching Filter
1. Screw the lter (Ø46mm) 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.

By setting the camera body a below, you can shoot using the functions of the
lens and body. For details on camera body settings, refer to the instruction
manual of the camera you are using.
1. Electronic communication compatible models
*When using with an electronic communication compatible model, if the camera rmware is not
current, the performance of this product may not be fully utilized, or some functions may be limited,
so please use the latest version of the camera's rmware.
1-1. Aperture display setting (change from T value to F value)
The aperture value display is set to "T value" by the initial setting on the camera
body. By changing the "T value" to "F value", you can use the same numerical
value as the aperture value display of this product.
Even if the aperture setting is left as "T value", the Exif display will be displayed
as the "F value".
1-2. Depth of eld scale setting (change to lm standard reference)
By setting the depth of eld scale of the camera body to "Film reference", the
depth scale engraved on this product, and the depth range displayed, on the
body will match.
Preparation (camera body settings)

2. Models that do not support electronic communications
When using with a model that does not support electronic communications,
set [Release without lens] to "ON" in the camera settings.

How CPU/Contact works
1. Exif Data
Image le can store the Exif data of lens.
(For example, if you use Voigtländer 23mm F1.2)
Lens VOIGTLANDER NOKTON 23mm F1.2
Focal length 23mm
Maximum Aperture F1.2
Aperture The aperture value you used to take
the picture
2. Focus check
When [Focus Check] on the camera body is "ON", the live view
display can be automatically enlarged when the focus ring is
rotated. You may cancel this mode by pressing the shutter button
halfway down.
3. Distance display
When the focus ring is rotated, a guideline for the distance to the
focus position is displayed on the screen.
*In the camera body settings, you can switch “ON” and “OFF” of [distance index during
MF] and adjust MF assist. For details, please refer to the instruction manual of the
camera you are using.

4. Image stabilization
This lens supports the "camera shake" correction function.
*The "camera shake" correction function can be switched "ON / OFF" by the appropriate
setting on the camera body.
For more details, please refer to the instruction manual of your camera.

Product Name NOKTON 23mm F1.2 Aspherical
Focal Length 23mm
Maximum Aperture F1.2
Minimum Aperture F16
Lens Construction 6 groups 10 elements
Angle of View 63.2°
Aperture Blades 12
Minimum Focus 0.18m
Macro Ratio 1:4.9
Filter Size Ø46mm
Maximum Diameter Approx. Ø59.3mm
Length Approx. 43.8mm
Weight Approx. 214g
Mount X-mount
Aperture Ring Available (Manual Setting)(1/3 stop increments)
Electric Contact Available
Exif Data Available
Focus check Available
Supports parallax correction Available (only with compatible cameras)
●Specications
* Specications and information is subject to change without prior notice.

In-body camera shake correction
function
possible
* only on camera body with Image Stabilization
Supplied Accessory Front Cap, Rear Cap, Lens Hood
Corresponding shooting mode A [Aperture priority] M [Manual]
* Specications and information is subject to change without prior notice.
●Specications