Metabones ROLLEI QBM to X-mount Speed Booster ULTRA 0.71x (Black Matt)

The Metabones Rollei QBM to Fujifilm X-mount Speed Booster ULTRA 0.71x enhances lens performance by reducing crop factor and increasing aperture by 1 stop. Featuring advanced optical design, it delivers sharper images, wider field of view, and improved low-light capability for Fuji X cameras.

The Metabones Rollei QBM to Fujifilm X-mount Speed Booster ULTRA 0.71x (Black Matt) is a high-performance optical adapter designed to maximize the capabilities of Rollei QBM lenses on Fujifilm X-mount cameras. Incorporating an advanced 5-element/4-group optical design with ultra-high index tantalum-based glass, it significantly improves image quality with sharper corners, reduced distortion, and minimized vignetting.

With a 0.71x magnification factor, this Speed Booster effectively reduces the crop factor of APS-C cameras from 1.5x to approximately 1.07x, delivering a wider field of view closer to full-frame performance. Additionally, it increases the maximum aperture of the attached lens by 1 stop, improving low-light performance and enabling shallower depth of field.

Engineered to perform exceptionally well with both zoom and prime lenses, the Speed Booster ULTRA transforms lenses such as a 50mm f/1.2 into approximately a 35.5mm f/0.9 equivalent, offering outstanding clarity and contrast from center to edge. Built with precision and durability in mind, it ensures a secure fit and reliable operation for professional photography and videography.

Key Features

• Adapts Rollei QBM lenses to Fujifilm X-mount cameras
• 0.71x magnification reduces crop factor (APS-C to near full-frame view)
• Increases maximum aperture by 1 stop
• Advanced 5-element/4-group optical design
• Ultra-high index tantalum-based optical glass
• Improved sharpness, contrast, and edge-to-edge performance
• Reduces distortion and vignetting
• Ideal for both zoom and prime lenses
• Precision construction for secure and stable mounting