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Konica Minolta

Konica Minolta pgBFL 116.5mm DLP Cinema 2.5/40.7-50.9mm Zoom Projector Lens for Christie 25K Projector

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The Konica Minolta pgBFL 116.5mm is a legacy cinema-grade DLP projector lens with a zoom function that allows for flexible throw distances and image sizes. Though designed for older digital cinema projectors, it was compatible with certain high-end models, including the Christie 25K series, providing high-quality, precise focus for professional installations. This lens is noted for its durability and was an integral component in large venue movie and presentation setups. The aperture and focal length specifications, often found in formats like 2.5/50.7-67.8mm or 4.5/35.2-51.6mm depending on the exact model, indicate its light-gathering capability and zoom range.

View Product Features

  • Vintage DLP cinema zoom lens for professional projectors.
  • Compatible with certain high-brightness Christie 25K projectors.
  • Offers versatile and precise control over projected image size.
  • Legacy, high-quality zoom lens for digital cinema applications.
  • Known for its robust construction and durability in movie settings.
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About the Konica Minolta pgBFL 116.5mm DLP Cinema 2.5/40.7-50.9mm Zoom Projector Lens for Christie 25K Projector

The Konica Minolta pgBFL 116.5mm D-ILA Cinema Lens is a precision-engineered optical component specifically designed for high-end digital cinema projection, compatible with large-format projectors. This lens serves as a critical link between the projector's light engine and the silver screen, responsible for delivering the pristine image quality demanded by professional cinematic exhibition. It is engineered to meet the exacting standards of post-production facilities, premium large-format auditoriums, and giant screen installations where absolute color fidelity, edge-to-edge sharpness, and consistent illumination are non-negotiable. The lens is designed to handle the immense light output and high-resolution data of modern cinema projectors without introducing chromatic aberration, distortion, or focus breathing, ensuring that the director's creative vision is presented with uncompromised integrity.

Featuring a sophisticated internal focus and zoom mechanism, the lens provides a versatile range of throw distances and screen sizes while maintaining a constant T-stop for consistent brightness. This allows installers to fine-tune the projection setup to fit a variety of auditorium geometries without sacrificing optical performance. The optical formula incorporates multiple high-precision glass elements, including extra-low dispersion elements and advanced coatings, meticulously designed to control flaring, ghosting, and internal reflections. This ensures deep black levels, high contrast ratios, and accurate color reproduction across the entire visible spectrum, which is essential for content mastered in high dynamic range and wide color gamut standards like DCI-P3.

Mechanically, the lens is built to the robust standards required for permanent installation in demanding commercial environments. The housing is constructed from durable materials with careful thermal management to maintain precise optical alignment despite the significant heat generated by high-brightness projector lamps or lasers. The focus and zoom rings offer smooth, precise adjustment with engraved scales for repeatable settings, and the lens mount is engineered for a secure, vibration-free connection to the projector. This combination of optical excellence and mechanical reliability makes it a key component for achieving reference-grade cinematic presentation, capable of realizing the full potential of state-of-the-art digital cinema projection technology.

Key Features

  • Vintage DLP cinema zoom lens for professional projectors.
  • Compatible with certain high-brightness Christie 25K projectors.
  • Offers versatile and precise control over projected image size.
  • Legacy, high-quality zoom lens for digital cinema applications.
  • Known for its robust construction and durability in movie settings.

Konica Minolta pgBFL 116.5mm DLP Cinema 2.5/40.7-50.9mm Zoom Projector Lens for Christie 25K Projector Specs

Optical Specifications
Lens Mount
116.5mm
Focal Length Range
40.7 - 50.9mm
Maximum Aperture
T2.5
Zoom Ratio
1.25:1
Projection Format
1.90:1 (DCI Container)
Performance Attributes
Throw Ratio Range
1.36 - 1.70
Designed Resolution
4K (4096 x 2160)
Contrast Ratio
> 10,000:1
Color Uniformity
> 95%
Physical Dimensions
Front Lens Diameter
160mm
Overall Length
Approx. 340mm
Weight
Approx. 15.5 kg
Compatibility & Usage
Designed For
Christie 4K D-ILA Projectors (e.g., CP4230)
Compatible Projector Light Output
Up to 30,000 Lumens
Installation Type
Fixed, Permanent
Focus & Adjustment
Focus Mechanism
Internal
Zoom Mechanism
Internal
Minimum Object Distance
1.5m

Key Features

  • Vintage DLP cinema zoom lens for professional projectors.
  • Compatible with certain high-brightness Christie 25K projectors.
  • Offers versatile and precise control over projected image size.
  • Legacy, high-quality zoom lens for digital cinema applications.
  • Known for its robust construction and durability in movie settings.
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