In the world of large-venue projection, the Christie DWU1100-GS has long been recognized as a reliable workhorse. With its 1DLP display technology, 0.67-inch chip, WUXGA resolution of 1920x1200, and an impressive brightness output of 11,000 lumens
In the world of large-venue projection, the Christie DWU1100-GS has long been recognized as a reliable workhorse. With its 1DLP display technology, 0.67-inch chip, WUXGA resolution of 1920x1200, and an impressive brightness output of 11,000 lumens, this projector has served countless installations in concerts, conferences, exhibitions, and immersive entertainment. However, the standard lens that comes with the DWU1100-GS features a throw ratio of 1.22-1.52:1, which, while perfectly functional in many setups, can become a limitation when space is tight or when a wider image needs to be achieved from a shorter distance. This is exactly where Zorsika steps in with its WJ124 electric lens, offering a throw ratio of 0.62-0.8:1 — a game-changing upgrade that opens up new possibilities for integrators and end users alike.
Understanding the Christie DWU1100-GS
Before diving into the lens solution, let us take a closer look at what makes the Christie DWU1100-GS such a popular choice in the professional AV market. The projector utilizes a 0.67-inch DLP chip capable of delivering WUXGA resolution at a native brightness of 11,000 lumens. This level of output makes it suitable for large screens, bright environments, and demanding applications where image clarity cannot be compromised.
The stock lens on the DWU1100-GS provides a throw ratio range of 1.22-1.52:1, with a focal length spanning from 18.07mm to 22.59mm and a modest 1.25X zoom ratio. The lens also offers vertical lens shift of ±40% and horizontal lens shift of ±30%, giving installers some flexibility in positioning. The aperture ranges from F2.0 to F2.32, which is respectable but not exceptional for a lens of this class.
While these specifications are more than adequate for standard installations, there are scenarios where the throw ratio becomes a constraint. Imagine a venue where the projector must be placed very close to the screen — perhaps mounted on a ceiling truss just a few meters away from a massive LED wall or projection surface. The standard 1.22-1.52:1 lens would struggle to fill the screen without requiring the projector to be pushed further back, which may not be physically possible. This is precisely the problem that Zorsika's WJ124 lens elegantly solves.
Introducing the Zorsika WJ124 Electric Lens
Zorsika, as a professional projector accessory supplier, has built its reputation on delivering high-performance, cost-effective alternatives to original equipment manufacturer lenses. The WJ124 electric lens, with product code D67-072, is specifically engineered for the Christie DWU1100-GS platform and represents a significant leap forward in terms of versatility and optical performance.
The most striking feature of the WJ124 is its ultra-short throw ratio of 0.62-0.8:1. This means the projector can be placed much closer to the screen while still producing a massive image. With a throw ratio this low, the WJ124 can project a screen size of up to 500 inches from a remarkably short distance, making it ideal for small rooms, retrofit projects, and any installation where space is at a premium.
The lens features an aperture range of F2.2 to F2.4, with focal lengths of 9.37mm at the wide end and 12.11mm at the telephoto end. These figures ensure that the lens maintains excellent light throughput, which is critical when working with a high-brightness projector like the DWU1100-GS. Speaking of light efficiency, Zorsika reports that the WJ124 achieves 95.6% optical efficiency compared to the standard lens. In practical terms, this means almost no brightness is lost when switching from the original lens to the Zorsika alternative — a crucial factor for maintaining the 11,000-lumen output that makes the DWU1100-GS so valuable.
Optical Performance That Matches the Best
One of the hallmarks of Zorsika's lens design philosophy is a relentless commitment to optical excellence. The WJ124 delivers 4K resolution support, ensuring that every pixel from the DWU1100-GS's WUXGA chip is rendered with stunning clarity. The lens resolution is rated at 4K, which far exceeds the native resolution of the projector, meaning the lens will never be the bottleneck in image quality.
The Modulation Transfer Function (MTF) of the WJ124 exceeds 60% at 66 line pairs per millimeter across the entire field. For those unfamiliar with MTF, this is a measure of how well the lens preserves contrast and detail from the center to the edges of the image. An MTF above 60% at this frequency is outstanding and indicates that the image will be sharp, crisp, and free from the softness or distortion that plagues lesser lenses.
Zorsika ensures that every lens it produces offers extremely high color reproduction and extremely low light loss. These are not just marketing claims — they are backed by the engineering that goes into each optical element. The combination of high color fidelity, low light loss, 4K resolution support, and high contrast makes the WJ124 a lens that does not merely match the performance of the original; in many measurable ways, it surpasses it.
The lens is built on Zorsika's A06 high-brightness platform, which also supports the A02 and A06 platforms. This platform is specifically designed to handle the demanding optical requirements of high-lumen projectors, ensuring thermal stability and long-term reliability even under continuous operation.
Lens Shift: More Flexibility Than the Original
Where the WJ124 truly shines in comparison to the stock Christie lens is in its lens shift capabilities. The original lens offers vertical shift of ±40% and horizontal shift of ±30%. The Zorsika WJ124, on the other hand, provides vertical shift of ±53% and horizontal shift of ±23%. The significantly greater vertical shift range means that installers can position the projector much higher or lower relative to the screen center without resorting to keystone correction, which degrades image quality. This is a massive advantage in ceiling-mounted installations, particularly in venues with high ceilings or irregular mounting points.
The lens dimensions are φ144 x 239.77mm in length and height, which is compact enough to fit within the mechanical constraints of the DWU1100-GS housing. The 0.67-inch panel compatibility ensures a perfect match with the projector's chip, and the support for both WUXGA and 4K resolutions means the lens is future-proof — ready to serve not only current installations but also upgrades down the line.
The performance range of the WJ124 covers screens from 300 inches up to 500 inches, giving integrators enormous flexibility. Whether the project calls for a 300-inch image in a mid-sized conference hall or a 500-inch spectacle in a large auditorium, the WJ124 handles it with ease.
Why Choose Zorsika?
Zorsika has established itself as a trusted name in the projector accessory industry by consistently delivering products that combine premium quality with exceptional value. Every lens from Zorsika is designed with the end user in mind — offering easy installation through scientifically optimized structural design, ultra-long warranty coverage that gives partners and customers peace of mind, and a price point that makes high-performance optics accessible to a wider market.
The WJ124 is a prime example of this philosophy. It provides a throw ratio that the original lens simply cannot offer, superior lens shift range, near-identical optical efficiency, and 4K-ready resolution — all at a fraction of the cost of an original equipment manufacturer lens. For integrators working on Christie DWU1100-GS installations, the WJ124 is not just an alternative; it is an upgrade.
Zorsika's dedication to innovation means that the company does not simply replicate existing designs. Instead, it analyzes real-world market applications and engineers solutions that address actual pain points. The 0.62-0.8:1 throw ratio of the WJ124 was not chosen arbitrarily — it was developed in response to the growing demand for ultra-short throw capabilities in venues where space is limited but image size must remain large.
A Seamless Upgrade Path
For anyone currently using the Christie DWU1100-GS with its standard 1.22-1.52:1 lens and finding themselves constrained by throw distance or lens shift limitations, the Zorsika WJ124 offers a seamless upgrade path. The lens is fully compatible with the DWU1100-GS platform, requires no modifications to the projector, and installs with the same ease that Zorsika is known for. The electric operation means lens adjustments can be made remotely via the projector's control system, just like the original lens — no learning curve, no added complexity.
Conclusion
The Christie DWU1100-GS is a formidable projector, and with the Zorsika WJ124 0.62-0.8:1 electric lens, it becomes even more versatile. Zorsika has proven once again that professional-grade projector lenses do not have to come with professional-grade price tags. With 4K resolution support, over 60% MTF at 66lp/mm, 95.6% optical efficiency, ±53% vertical lens shift, and a throw ratio that transforms how the DWU1100-GS can be deployed, the WJ124 is the smart choice for any integrator looking to maximize the potential of their Christie installation. Zorsika continues to lead the way in delivering high-quality, innovative, and cost-effective projection solutions — and the WJ124 is a shining example of that commitment.