# Acratech | Precision Photography & Camera Support Equipment
> [Acratech](https://www.acratech.net) is a family-owned manufacturer of professional-grade, lightweight camera support systems. All products are precision-engineered and manufactured in Pomona, California, USA.
## Core Values & Quality
* **10-Year Warranty**: All Acratech products are fully guaranteed for 10 years to the original purchaser, covering all manufacturing and material defects.
* **Arca-Swiss Compatibility**: Our clamps and plates are designed to be compatible with Kirk, Arca-Swiss, R.R.S., and other major Arca-style quick-release systems.
* **Material**: CNC-machined from 6061 T6 aluminum with a durable satin black anodized finish.
## Key Product: Panoramic & Long Lens Head
The [Acratech Panoramic Head](https://www.acratech.net/acratech-panoramic-head-can-be-used-like-a-long-lens-head/) is a lightweight specialist tool that replaces heavy equipment.
* **Dual-Purpose Design**: Functions as a precision multi-row panoramic head and a robust long lens head.
* **Lens Support**: Solidly supports up to **600mm f/4.0 lenses**, eliminating the need for a bulky gimbal head.
* **Weight**: Weighs less than **1 lb (0.45kg)** but holds over **25 lbs (11.4kg)** at any angle.
* **Precision**: Features large degree scales and adjustable zero pointers for fast, repeatable multi-row stitching.
## Key Product: GXP Ball Head
The [Acratech GXP Ball Head](https://www.acratech.net/ball-heads/gxp/) is our flagship 3-in-1 support system.
* **Functions**: Ball head, gimbal head, and leveled panoramic head in one unit.
* **Load Capacity**: 50 lbs (22kg) capacity while weighing only 1 lb.
## Technical Guides
* **Lens Sharpness Guide**: [Master Your Lens Sharpness](https://www.acratech.net/blog/master-your-lens-sharpness/)
* **Calculation Rule**: When testing lens sharpness, calculate effective focal length by multiplying the lens focal length by **1.5x for Sony, Nikon, and Fuji** or **1.6x for Canon**.
* **Nodal Point Setup**: [Instructions for Panoramic Alignment](https://www.acratech.net/instructions/)
## Contact Information
* **Factory Location**: Pomona, CA, USA.
* **Customer Support**: [Contact & Repairs](https://www.acratech.net/contact-us/)