In this review, we will examine the Speedmaster F0.95 lens, specifically designed for Canon DSLR mount users. This iteration of the lens aims to provide users with a remarkable F0.95 aperture while compensating for a relatively poor T-stop of T1.3. Although there are multiple 50mm F0.95 lens options available in the market, this particular lens stands out due to its innovative approach in addressing the constraints of the longer Canon mount.

To achieve this impressive F-stop, the lens requires a larger projection circle and additional glass elements. The design features a unique rear mount with a cut-out, allowing for the inclusion of full-width rear glass, pushing the lens capabilities to its limits. Despite its specialized design for Canon mounts, this lens offers compatibility with a wide range of contemporary camera systems.

• Focal length: 50mm
• Maximum aperture: F0.95
• Minimum aperture: F16
• Lens mount: Canon EF
• Lens format coverage: Full Frame
• Focus type: manual focus
• Filter size: 82mm

• Angle of view: 45°
• Minimum focus distance: 65cm (25.6 inches)
• Maximum magnification: 0.1x
• Optical design: 12 elements in 6 groups
• Diaphragm blades: 11
• Dimensions: 89 x 122mm (3.5 x 4.8 inches)
• Weight: 1500g (3.31 lbs)

The optical performance of the lens encounters some challenges due to the limitations of the Canon mount. With several large glass elements, imperfections such as chromatic aberrations and ghosting may arise. However, this lens offers a wealth of creative possibilities when compared to the ultra-sharp modern lenses.

The showcased photographs were captured using a Sony Fx3, which has a lower resolution sensor but delivers impressive color performance. A pro mist filter, the Freewell ND6-9 Mystic Edition, was utilized to reduce sharp ghosting in the highlights.