Askar M54/M54 Backfocus Adjuster is a precise adapter that allows you to adjust the working distance of cameras and other optical accessories equipped with M54 threads.

Thanks to the use of CNC technology, the adapter is characterized by the highest precision of workmanship, as evidenced by a dimensional tolerance of only 0.05 mm. The adapter's aperture is 46 mm, which reduces the risk of vignetting to a minimum.

The optical length of the adapter can be adjusted within 2 mm by rotating the housing with an auxiliary scale.

The most important features of the Askar M54/M54 Backfocus Adjuster adapter

• large aperture to prevent vignetting
• possibility of precise adjustment of optical length

Technical parameters

• optical length: 18 mm with ± 2 mm adjustment
• manufacturing accuracy: ± 0.05 mm
• threads: M54x0.75
• Inner diameter (aperture): 46 mm
• Outer diameter: 74 mm

Set elements

• Askar M54/M54 Backfocus Adjuster adapter

Guarantee

24 months