Step-Down Adapter M27-M25.5Step 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

24 mm Chief Ray Angle 12

For lens or filter surfaces that are hard to access

The RA034 can be adjusted through 360 Degrees and is available in sizes from M22

1 μm Weight 90 Grams Mount C-Mount Filter Thread M30

0mm EXT-50

(f-number) F1

HF2518-12M suggested replacement is CF25ZA-1S

This lens series has been discontinued and has been succeeded by the HF16HA-1S

5 Minimum Object Distance 500 mm Front Diameter 29 mm Focus Control Manual Iris Control Manual Flange Back in Air 17

BP735 Near-IR Bandpass (715-780nm)

SK100 Downloads

Light Balancing