VILTROX 39A21-BC16 Main Camera Lens Instruction Manual

: June 10, 2024
: VILTROX

Table of Contents

VILTROX 39A21-BC16 Main Camera Lens
Features
Specification
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VILTROX 39A21-BC16 Main Camera Lens

Features

AF 56 / 1.7 XF is an auto focus lens suitable for X-mount, with 11 elements in 9 groups, the focus distance is about 0.55m – oo, and noiseless STM focus motor can accurately control the moving position and bring accurate and smooth focusing.

56mm focal length, F1. 7aperture
9 groups of 11 optical structures, including 4 ED lenses, 3 lenses with high refractive index
Electronic aperture, internal focus mechanism, supports autofocus
Precision hardened aluminum alloy bayonet
Quiet STM focus motor, fast and accurate focusing
Convenient and light
Supports multiple camera shooting modes and EXIF information transmission

Attaching and Detaching the Lens

To attach the lens
Align the white index on the lens barrel with the white index on the camera, then insert the lens into camera mount and rotate it clockwise until it locks. ( For further details of attaching and detaching lens, please kindly refer to the User Manual of the camera.)
To detach the lens
While holding down the lens release button on the camera, rotate the lens counterclockwise until it stops, then detach the lens. Please place the back of the lens upward to avoid scratches on the lens surface and the electronic contacts.
Lens cap
When lens is detached, please cover it with a dust cap. Align the mounting index on the dust cap with the mounting index on the lens, then rotate the cap clockwise until it stops. And rotate it counterclockwise when removing the cap.

Lens Hood
Lens hood is used to reduce flare or scattering light of ghost and avoid rain, snow and dust sticking to the front of the lens.

VILTROX-39A21-BC16-Main-Camera-Lens-fig-2

Attaching the Lens Hood
Align the attaching index on the lens hood with the index on the lens, then insert the lens hood into the lens mount and rotate it clockwise until it clicks and now the stop index on the lens hood should match the index on the lens.

Detaching the Lens Hood
Rotate the lens hood counterclock- wise until the attaching index is aligned with the index on the lens, then remove the lens hood. The lens hood can be attached or stored in the opposite direction.

Lens Construction Diagram

VILTROX-39A21-BC16-Main-Camera-Lens-fig-3

MTF Graph

VILTROX-39A21-BC16-Main-Camera-Lens-fig-4 Safety Notes

Do not look at the sun or bright source through the lens or camera, otherwise the vision will be impaired.
Do not place the lens in the sun, regardless of whether it is mounted on the camera, otherwise the lens may fuse and cause a fire.
Do not place the lens in a child-sensitive area, otherwise it risks accident or injury.
Please do not disassemble the internal parts of the product yourself, which may cause damage.

Using Tips

When attaching the lens, be careful not to let it be hit by a mechanical impact.
When stored, please make sure to put the lens cap on the lens.
Please do not store the lens in a very humid place for fear of mildew.
The lens is not water-resistant, so it must be used carefully when it is raining or near water. If the internal parts, lens or the electrical components are damaged by water, it is probably unable to repair.
Temperature shock may cause fog or water droplets on the lens surface, so while going into a warm indoor environment in the cold weather, it would better place the lens in an airtight plastic bag or an oven until the lens temperature gets close to the room temperature. Please use the same method when taking the lens from a warm environment to a cold one.

Cleaning

Please don’t touch the contacts on the lens with your hand. If the lens gets dirty, blow off the dust with a lens-nosed tiger and rub slightly with a clean,soft lens cloth (cleaning cloth).
Please do not use any organic solvent, such as dilute or gasoline to clean the lens.