VILTROX 30-300 T4.0 Zoom 10X Cinema Lens User Manual

VILTROX 30-300 T4.0 Zoom 10X Cinema Lens

Thank you for choosing Viltrox Lens !
*Please read this manual carefully before mounting the Viltrox lens on your camera so that you can understand and use all the functions of the lens.
Please keep this manual in a safe place so that all users of this product can refer to it at any time.

Shenzhen Jueying Technology Co., Ltd
TEL: +86-755-2877 9024
FAX: 0755-2877 4730
MAIL: info@viltrox.com
URL: www.viltrox.com
Address: 1207, Floor 12, Block B, Chinto Science&Technology Building, Minzhi Street, Longhua, Shenzhen

Product Overview

LUNA 30-300 T4.0 ZOOM 10X is a zoom cinema lens from Viltrox, specially developed for cinematic creation. The LUNA 30-300 T4.0 has a zoom ratio of 10X and a image circle of 46.5mm, covering FF, LF and VV image formats.

• The front diameter of the lens is 165mm.
• The follow focus is with standard M0.8 gears.
• Filter is rear-mounted and has a magnetic suction function.
• Features a back-focus compensation adjustment structure.
• Lenses are coated with high-definition nano-multilayer coatings, and the front lens is waterproof coated.

Attention

Safety Notes

• Do not look at the sun or bright light 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.
• Keep the lens out of the reach of children, otherwise there will be a danger of accidents or injuries.
• 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.
• If matte box is used, please don’t exert any force on it in picking the camera up.
• When stored, please make sure to put the lens cap on the lens.
• Do not place the lens in a place where the temperature is too high, such as in a car in direct sunlight. High temperatures may cause the lens to malfunction.
• 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 blower 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.

Lens Components

1. Front lens cap
2. Lens handle
3. Lens markings
4. M4 accessory expansion hole 1
5. M3 accessory expansion hole
6. M4 accessory expansion hole 2
7. Focus ring
8. Support base
9. Zoom ring
10. Aperture ring
11. Parfocal ring
12. Parfocal ring lock pin
13. Rear lens cap

Lens Dimensions

Filter Installation and Removal

Filter Installation
This lens features a rear-mounted filter with a magnetic attachment. To install the filter, simply place it in the filter installation position at the rear end of the lens

Filter Removal
Align the notch of the filter removal tool with the raised part of the filter, press the tool, and rotate it. When the tool grips the filter tightly, pull it out to remove the filter.

1. Filter installation position
2. Filter
3. Filter removal tool

Installing the Lens onto the Camera

1. Place the lens head (with the front lens cap) down, vertically on the ground.
2. Remove the rear lens cap, attach the camera to the lens mount, and tighten the mount.
3. Take out the Dovetail Plate, insert it into the tail slot of the 19mm base (sold separately by third-party suppliers), and tighten the base knob to lock it in place.
4. Install the 19mm support rod into the 19mm base rail hole, then tighten the locking knob.
5. Install the Lens Support onto the rail, move it to the position of the lens support base screw hole, and tighten the screw.
6. Install the Lens Holder on the rail, move it to about 1/3 of the front end of the lens, and rotate the two wheels of the Lens Holder until they support the lens and dovetail plate.
7. Lay the lens and camera flat, adjust the height of the Lens Holder to keep the lens and camera on the same level, then place the installed lens and camera onto the tripod.

Back Focus Adjustment

The LUNA 30-300 T4.0 ZOOM 10X zoom cinema lens is factory-adjusted for back focus according to standard settings. However, the flange focal distance of different cameras may vary slightly, resulting in inaccurate lens scales, which will cause the lens to be out of focus. To match different cameras and achieve the best imaging results, back focus adjustment is needed to calibrate the scale.

Back Focus Adjustment Steps:

1.  Prepare the shooting target. You can use a “star test chart” (available for download from the “www.viltrox.com – Download Center – Back Focus Adjustment Star Chart”) or other high-contrast black and white targets.
2. Place the target at a distance of 6′ (approximately 183cm) from the camera CMOS plane, adjust the lens focus ring to the 6′ scale, set the lens aperture ring to T4, and adjust the target to be in the center of the frame.
3. Set the zoom ring to the shortest focal length of 30mm, then rotate the focusing ring to achieve the sharpest image.
4. Set the zoom ring to the longest focal length of 300mm, then slightly adjust the focus ring to achieve the sharpest image.
5. Repeat steps 3-4 two to three times. When the best focus position is consistent across all focal lengths, the adjustment is complete.
6. After the adjustment, lock the focusing ring lock pin.
   Note: 6′ ~ 1.83m, the CMOS plane is marked with the symbol on the camera.

Distance from the shooting target to the camera CMOS should be 6′.

Attention
If the focusing ring, when turned upwards to the upper limit, still cannot focus clearly at the 30mm focal length, you need to add a bayonet shim. The steps to add a bayonet shim are as follows:

1. Use the provided T6 hexagonal screwdriver to remove the 8 screws securing the mount, and take out the mount.
2. Take out the bayonet shim from the bayonet shim box and add it to the bayonet shim position.
3. Reattach the mount to the lens according to the limit position.

If the focusing ring, when turned downwards to the lower limit, still cannot focus clearly at the 30mm focal length, you need to reduce the bayonet shim. The steps to reduce the bayonet shim are as follows:

1. Use the provided T6 hexagonal screwdriver to remove the 8 screws securing the mount, and take out the mount.
2. Remove the necessary bayonet shim from the bayonet shim position and place it back into the bayonet shim box.
3. Reattach the mount to the lens according to the limit position.

Specification

• Above data have been measured based on our measurement conditions. Designs or specifications will be changed without notice if any.
  This manual is for reference only. The right to interpret this manual shall be owned by us.

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