Step-Down Adapter M77-M67Step Down Rings by Midwest Optical Systems (MidOpt) Use smaller diameter filters on lenses with larger diameter filter threads The diameter of the filter or lighting to which step down rings are coupled will be much smaller than the diameter of the lens (often resulting in vignetting) Available sizes: SD27 25. 5 SD82 77 Commonly referred to as a thread adapter Larger diameter thread is male, smaller diameter thread is female. Adapter Properties Male

06° Front Principle Point -24

do not clean plastic optics or optics in plastic housings with acetone

Male Thread M25

LP850 Near-IR Longpass

526 mm Exit Pupil Position -50

5mm RA034-35

91 Rear Principle Point

48 Flange Back (mm) 17

6 mm Angle of View @ 2/3″ 32

Machine Vision Direct does not claim to be a Asyril Distributor

9 - f/22 HF50HA-1B

Optimal Design for Compact Form Factor Cameras