# Title: Optoma BX-CTA08 Motorized Short Throw Lens with Zoom


## Description: The Optoma BX-CTA08 is a motorized semi-wide zoom lens engineered for professional installations where the projector must be positioned at a moderate distance from the screen. Its 1.6x zoom capability and motorized focus provide flexible placement options, while the full lens memory function saves and instantly recalls your zoom, focus, and lens shift settings for consistent, repeatable performance. Designed to deliver exceptionally large images, this lens supports screen sizes ranging from 50 inches up to a massive 1,000 inches, making it ideal for auditoriums, event spaces, and immersive environments. The robust construction and precision optics ensure sharp, clear image quality across the entire projection surface. This lens is specifically designed for seamless integration with the Optoma ProScene ZK1120 and ZK1320 4K UHD+ projectors, ensuring a perfect fit and optimal optical alignment for high-resolution, professional-grade installations. Key Features Brand Optoma Model Number BX-CTA08 Product Type Projector Lens Net Weight 4.2 lbs Gross Weight 5.3 lbs UPC 796435071486 Throw Ratio (ZK1320/ZK1120) 1.25 ~ 2:1 Min Screen Size 80 in (Mechanical limit ~ 50 in) Max Screen Size 300 in (Mechanical limit ~ 600 in) Min Throw Distance 4.43 ft Max Throw Distance 70.67 ft F-stop 2.03 ~ 2.36 Focal Length 22.1 ~ 35.5 mm Zoom Type Motorized Zoom 1.6x Lens Memory Lens Shift Only Compatible Models Optoma ProScene ZK1120, Optoma ProScene ZK1320 Compatibility ProScene ZK1120 ProScene ZK1320 Warranty Limited Warranty Frequently asked questions Which projectors are compatible with the Optoma BX-CTA08 lens? The BX-CTA08 lens is specifically designed for use with the Optoma ProScene ZK1120 and ZK1320 4K UHD+ projectors. What is the maximum screen size this lens can project? The lens supports a maximum screen size of 300 inches, with a mechanical limit of up to 600 inches. Does the BX-CTA08 lens have a memory function? Yes, it features a full lens memory that saves and quickly recalls zoom, focus, and lens shift positions. What is the throw ratio of this lens? When used with the ZK1320 or ZK1120 projectors, the throw ratio is 1.25 to 2:1.


## Product type: Optoma Lenses


## Vendor: Optoma


## Tags: lens memory, motorized zoom lens, Optoma BX-CTA08, Optoma ZK1120 lens, Optoma ZK1320 lens, professional projector lens, projector lens, short throw lens


## Price range: 1999.0 - 1999.0 USD


## Link: https://protechprojection.com/products/optoma-bx-cta08-motorized-short-throw-lens-with-zoom-1


## Options 

- Title: Default Title


## Variants

- Default Title, SKU: BX-CTA08, Available: yes, Inventory: 100, Delivery profile: -


## Metafields 

- product_upload_source_url: https://www.optomausa.com/product/BX-CTA08
- title_tag: Optoma BX-CTA08 Short Throw Projector Lens
- description_tag: Motorized short throw lens with 1.6x zoom for Optoma ProScene ZK1120 and ZK1320 projectors. Supports screen sizes from 50 to 1000 inches with lens memory function.
- google_product_category: 393
- google_product_category: 393
- product_status: {"pending":0,"failed":0,"approved":1}