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Tribe7 BLACKWIND B-TUNED : 20-27-37-47-57-77-107-137mm feet

Description

PL mount Tribe7 Blackwing B-tuned lenses set demo, quite never used :

20, 27, 37, 47, 57, 77, 107, 137mm. in imperial scale (feet)

The Tribe7 BLACKWIND B-TUNED lenses are a series of full-frame prime lenses designed for large-format motion picture imaging. They offer unique imaging characteristics through a proprietary tuning process that allows filmmakers to customize parameters such as sharpness, contrast, roll-off, spherical aberration, field curvature, edge halation, and flare.

Key Features:

Tuning Options: The B-TUNED lenses exhibit a green/blue ghost flare and feature edge-uncoating, resulting in lower contrast.
Aperture: The lenses have a maximum aperture of T1.9, providing excellent low-light performance.
Iris System: Equipped with a 14-blade iris, these lenses produce smooth and aesthetically pleasing bokeh.
Image Circle: The lenses are designed to cover full-frame sensors, with image circles ranging from 55mm to 62mm, depending on the focal length.
Mount: They feature a PL mount, ensuring compatibility with a wide range of professional cinema cameras.

Focal Lengths and Specifications:

The BLACKWIND B-TUNED series includes the following focal lengths:

20.7mm T1.9: Close focus at 7.5 inches (19 cm), weight 3.6 lbs (1.6 kg).
23.7mm T1.9: Close focus at 14 inches (35.6 cm), weight 3.3 lbs (1.5 kg).
27mm T1.9: Close focus at 13.5 inches (34.3 cm), weight 4.3 lbs (1.9 kg).
37mm T1.9: Close focus at 18.5 inches (47 cm), weight 4.1 lbs (1.8 kg).
47mm T1.9: Close focus at 18.5 inches (47 cm), weight 3.8 lbs (1.7 kg).
57mm T1.9: Close focus at 18 inches (45.7 cm), weight 3.8 lbs (1.7 kg).
77mm T1.8: Close focus at 26 inches (66 cm), weight 3.6 lbs (1.6 kg).
107mm T1.8: Close focus at 26 inches (66 cm), weight 3.6 lbs (1.6 kg).
137mm T2.0: Close focus at 32 inches (81 cm), weight 3.8 lbs (1.7 kg).

These lenses are meticulously crafted to offer a harmonious set of optical characteristics, making them suitable for a variety of creative applications in the film industry.