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Clear Lens Cover, 37.7 mm Slip-Mount

Midwest Optical Filters

$100.00 each

Available Worldwide.

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Protects expensive lenses against dust and fingerprints
No lens threads needed
Slips over lenses have a 37.7 mm OD
Set screws hold in place

This clear lens cover provides an additional layer of protection for expensive optics. No lens threads are needed, since it just slips over the object end of the lens. Three recessed set screws hold it in place.

To clean, simply remove it from the lens, bring it to a sink and use water and a soft cloth, letting it dry before returning it to service. Your imaging system can keep working while you’re cleaning this lens cover.

Consider all the costs of replacing a lens: Inventorying each lens type, labor to tweak the focus and aperture of a replacement lens, and down-time for recalibrating or retraining software. Each time you replace a lens cover, you’ll be glad it was there.


Filter Type: Visible Pass
Wavelength: 330 nm
Thread: Unmounted
Aperture: 41.5 mm


For Lens OD 37.7 mm
Filter Holder Thread M46 x 0.75

90% efficient between 340 - 1100 nm.