Series Introduction

We believe that accord with the friendly, economic, reliable, durable and sustainable development, is the best combination to meet the most common needs of all artists, a good balance of qualities to make a more viable product is the true sense of the EXTREME.

The full-frame zoom cinema lens can be a flexible and variable-frame system. The market angle is finer, the image is better, and it has a broader life cycle and investment value. With good overall quality, especially the super high cost performance, it becomes an excellent production tool Therefore, the EXTREMER series came into being.

The EXTREMER series is a modern multi-zoom cinema lens set developed by us for large-format camera systems. It strictly follows the optical and mechanical structure requirements of the film industry. It is newly developed and manufactured. 28-85mm is in this series. The first product of, covering the more commonly used focal lengths, has a T3.2 constant aperture, 6-8K-level clarity, precise par focal function, well-controlled breathing, sharp and unfavorable focal inside, soft transition outside focal length, and enhanced In addition to glare suppression, it has a DIY bayonet design, and provides multiple bayonet system options such as PL, EF, and E. Among similar products, the volume and weight control are more excellent.


Super cost-effective
Excellent imaging
Par focal design
Minimal breathing effect
PF/EF/E mount
Compact structure
With a field diameter of 46 mm, it is suitable for a wide range of large format camera systems and is compatible with Super 35 format for a long life cycle and greater investment value.
Par focal
This series of lenses can ensure par focal accuracy when the back focus is accurate. For the back focus adjustment function, please refer to the manual or search in the site
Focal length
The first lens is 3x zoom, the zoom range is 28-85mm, covering common focal lengths, one is more than one, more practical, leave a message in the station, wide-angle zoom, telephoto zoom, which focal length is more in line with your needs.
Breathing effect
Excellent breathing effect control ability, easier to shift the focus of the composition
Multi-mount DIY
The PL native mount is standard, and a full range of EF and E mounts are also available for use with the SLASHER series, for a variety of camera systems. More bayonets will be launched later, so stay tuned.
More product features
Surface Technology
Unique coating process for greater hardness and strength, more resistant to hand prints and oil stains.
Linear aperture ring
Consistent rotation angle per stop for more intuitive aperture control
Metric & imperial double-sided scales
The metric scale on the left side of the focus ring, and the inch scale on the right side, to meet different needs
Anti-dust and raindrops

During the design process of the lens structure of this series, the protection against general sand, dust and raindrops has been specially strengthened to ensure normal shooting under severe conditions.

*Sand, dust and raindrops are not the promised function of this product, but to minimize the possibility of its occurrence during product design, please use it in a safe environment

Volume and weight
The volume and weight are well controlled in the full-frame zoom cine lens with all-metal structure
Supplementary focal length is available
Telephoto zoom and wide-angle zoom are already planned, so stay tuned
Out of focus
The out-of-focus spot is rounded and the bokeh is natural.
Follow focus stroke
288-degree focus stroke, realizing manual precise follow focus
Adjustable back focus
The factory must be strictly inspected to ensure the accuracy of the rear flange distance. At the same time, various specifications of gaskets are provided as standard, which can be adjusted by DIY. The flange distance is accurate to achieve par-focus.
* In order to improve the product, we may change some specifications and appearance, please refer to the actual product.
Xtreme Zoom 28-85mm/T3.2
Model Number
Xtreme Zoom 28-85mm/T3.2
Lens Mount
Focal Length
Zoom Ratio
Maxmum T Stop
Aperture Range
Imaging Circle(Image Diameter)
Flange Distance
52mm(PL)/44mm(EF)/ 18mm(E)
MOD From Lens Front
MOD From Sensor Plane( minimum marked distance)
Shooting Area for MOD
28mm:(510*340mm) 85mm:(123*82mm)
Horizontal FOV(Field Of View)
Vertical FOV (Field Of View)
Diagonal FOV (Field Of View)
Quantity of Aperture Blades
Angle of Aperture Ring Rotation
Angle of Zoom Rotation
Angle of Focusing Ring Rotation
Maximum Diameter VS Length
Front Diameter
Gear Pitch