Image shows a Schneider Optics EMERALD 21-1071606


Schneider Optics EMERALD 21-1071606

28 mm F-mount 'LD' Lens

Price: $2,023.00 each

Not available for purchase outside of United States.

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Robust mechanics for rough industrial environments
High resolution optics
Broadband coating for visible or NIR imaging
Constant MTF over the entire image field
Canon, V, M42 and M58 mounts also available

The Schneider EMERALD low distortion lens offers an image circle diameter of 43.2 mm. It is compact, robust, and optimized for imaging objects with a uniform image quality over the entire sensor area. The 400 - 1000 nm broadband coating makes it suitable for applications in the visible and the near infrared spectrum.

The iris is locked with a thumb screw. The focus is set by rotating the main barrel via an internal thread and locked with a locking collar that resists vibration.

This 'LD' version is optimized for longer working distances, ranging from 553 to 2830 mm. However, good images can be obtained as close as 54 mm. We also offer the 'SD' version that is optimized for shorter working distances.

Contact us for optional configurations: Canon mount; V-mount; M42 mount; and M58 mount.


Lens Mount: F-Mount
Length: 98.7 mm
Filter Thread: M62 x .75
Weight: 510 g


Lens Type: General
Focal Length: 28 mm
Center Resolving Power: 6.45 µm, 80 lp/mm
Working Distance: 233.0 - 564.0 mm
F#: 2.8 - 22.0
Image Circle: 43.20 mm


Storage Temperature: -25 to 70 deg. C
Slow Temperature Cycling: -25°C to +70°C, 5 cycles a 12h, DIN ISO 9022-2-14-03 -1
Damp Heat Cycling: -23°C to +40°C, 80% to 95% rel. humidity, DIN ISO 9022-2-16-01-1
Shock Testing: 50 g / 11 ms, 18 shocks, DIN ISO 9022-3-30-06-1
Sinusoidal Vibration: 2 g, 10 to 500 Hz, DIN ISO 9022-3-36-04-1

Canon mount, V-mount, M42 mount and M58 mount also available.

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