Microscope Lens Ring Adapter 40mm / 50mm | LINEIN

40 mm working-diameter microscope lens ring adapter with 42 mm inner opening

50 mm working-diameter microscope lens ring adapter

50 mm lens ring adapter showing its mounting face

40 mm and 50 mm microscope ring options shown together; one adapter is supplied per selection

Metal Microscope Lens Ring Adapter – 40mm / 50mm

$29.95

40 mm lens fit

50 mm lens fit

Mount a compatible cylindrical C-mount microscope lens to a matching focusing bracket with this metal lens ring adapter. It provides a support ring and mounting face for a microscope camera assembly, making it useful when replacing a ring or adapting an existing inspection setup.

Choose the correct lens fit

Option	Working lens diameter	Ring inner diameter	Ring outer diameter
40 mm lens fit	40 mm	42 mm	50 mm
50 mm lens fit	50 mm	50 mm	58 mm

The option name refers to the working lens diameter. Measure your lens barrel and compare your focusing bracket mounting face before ordering; C-mount thread compatibility alone does not establish whether the support ring will fit.

For microscope setup and maintenance

Metal construction with a black finish.
Ring support for a compatible cylindrical microscope lens barrel.
Mounting face for use with a matching focusing bracket.
Two sizes for different inspection-camera and lens assemblies.

What is included

One lens ring adapter in the selected size. The gallery shows both available sizes for comparison. Camera, lens, focusing mechanism and microscope stand are not included.

This is a mechanical mounting accessory. It does not add magnification or change the optical performance of a microscope lens.