Step-Up Adapter M67-M95Step Up Rings by Midwest Optical Systems (MidOpt) Use larger diameter filters on lenses with smaller diameter filter threads Often mandatory for shorter focal length lenses in order to prevent vignetting Available sizes: SU22. 5 25. 5 SU77 105 Commonly referred to as a thread adapter Step Up Rings are most commonly used to adapt a larger diameter thread on items such as ring lights and filters to a smaller diameter thread (generally the thread on the

06° Front Principle Point -24

8° Back Focal Length 11

90 mm Chief Ray Angle 4

SP585 Cyan Shortpass

CF35ZA-1S Technical Specifications:

and in individual size ranging from 20

25% Transmission

Manual Adjustable Aperture and Focus

Male Thread M55 Female Thread M52 Manufacturer Midwest Optical Systems

Further wavelength separation is beneficial for use with LEDs and laser diodes

we recommend the CK100-NA

2 μm Weight 50 Grams Mount C-Mount Filter Thread M27-0