Projector Lenses
At ReBeam, you'll find the right lenses to take your events to the next level. From standard to telephoto lenses or wide-angle to ultra-wide-angle: don't compromise on the quality of your visualizations and find the right lens for your projector with us.
Projector Lenses: Key Components
Lenses specifically designed for event projectors are complex optical components that play a crucial role in the projection of multimedia content. They possess various features and characteristics that influence the performance and quality of your visualizations:
Construction and Components of Projector Lenses
Projector lenses consist of a series of optical elements, such as glass or plastic lenses. These elements are designed to concentrate and focus light rays to produce a clear and sharp image. The quality of the optical elements has a significant impact on image quality, especially in professional settings where extreme stress and energy often affect the components. It is not uncommon for parts or objects to melt or even burn due to misuse.
Projection Ratio
Each projector lens has a specific projection factor based on its focal length and the panel size used in the projector. The projection factor for lenses can range from approximately 0.25:1 (Ultra-Wide Angle) to 12:1 (Ultra-Tele). This factor can be easily converted into the projected image size. For example, an ultra-wide angle lens with a 0.25:1 ratio requires only 0.25m distance for a 1m wide image, while a telephoto lens with a 12:1 ratio requires 12m distance for the same image width. To calculate the required projection factor for your application, use the simple formula: available distance divided by the required image width = required projection factor.
Example Calculation:
You want an image 4m wide and have 6m distance from the screen: 6m distance / 4m image width = 1.5 projection factor.
You want an image 4m wide and have 6m distance from the screen: 6m distance / 4m image width = 1.5 projection factor.
Focal Length
The focal length of a lens is the distance between the lens and the point where it focuses light to create a sharp image. It is denoted by "f". Projector lenses with different focal lengths allow for different projection distances and image sizes. Short focal lengths produce a large image at a short distance from the screen, while long focal lengths create a smaller image at the same distance.
Zoom Capability
Many lenses for event projectors feature zoom functions, allowing for variable adjustment of the image size without changing the position of the projector. This is especially useful in environments where the available projection distance is limited. Zoom lenses provide exceptional flexibility and adaptability. The zoom factor is determined by the ratio of the maximum possible zoom to the minimum, with max zoom / min zoom giving the zoom factor.
Focusing
Focusing a projector lens is crucial to achieving a crystal-clear image. High-quality lenses enable precise focusing to display every detail clearly. Focusing can be done manually or automatically, depending on the type of lens and event projector.
Lens Shift
Lens shift is a feature that allows the position of the projected image to be adjusted both horizontally and vertically without moving the projector itself. This is particularly useful for aligning the image correctly on the screen, even if the event projector is not perfectly centered.
Aperture Adjustment
The aperture adjustment of a projector lens allows for control over the amount of light that passes through the lens – indicated by "F". This is important for adjusting the brightness and contrast of the projected image to match the environmental conditions. The smaller the "F" of a given lens, the more light it lets through, making the projection brighter compared to other lenses or the nominal brightness of the projector.
What types of lenses are available specifically for event projectors, and what are they used for?
Video mapping, facade projection, immersive rooms, or simple visualizations – when choosing the right lens for event projectors, factors like projection distance, projection surface size, and the lighting conditions of the venue must be considered. The most common lens types are:
Standard Lenses
The all-rounders among projector lenses offer a good balance between image size and distance to the projection area. Standard lenses are often used in small to medium-sized event spaces.
Wide-Angle Lenses
Wide-angle or ultra-wide-angle lenses enable large projections at short distances. They are often used at large events, trade shows, or in specialized installations like immersive exhibitions.
Telephoto Lenses
Telephoto lenses are ideal for long distances between the event projector and the projection surface and are perfect for large event halls.
Zoom Lenses
These lenses offer flexibility in image size and projection distance and are used in variable event environments where distances and spatial conditions may change.
Buying Lenses: Who Makes the Best Projector Lenses?
In our shop, you will find top manufacturers known in the AV industry for their high quality and innovative technologies. We offer fair prices for lens models with great conditions from the following brands:
- Panasonic Lenses
- Epson Lenses
- Christie Lenses
- Barco Lenses
- Digital Projection Lenses
- Sanyo Lenses
- Vivitek Lenses
Rent or Borrow Lenses
Are you planning an event and want to stay flexible? You can also rent lenses from us! Our rental solutions give you access to a wide range of high-quality projector lenses that are suitable for various types and sizes of events. Our rental experts are ready to assist you with advice and support on our lens rental services.
More info on rental services
