Spacer Rings - Kowa Lenses

Kowa's spacer ring increases system magnification while reducing the minimum working distance, which is helpful when attempting to zoom in closer when the camera cannot be repositioned. Kowa's spacer ring also enables the user to attach a C-mount lens to a CS-mount camera.

Available with and without the integrated protective filter, the Kowa Front Ring provides an 80mm front diameter with 77mm filter threads for use with

80mm Front Ring - Kowa

Flatteners & Correctors — Red Carpet Telescopes

Spacer Rings, Extensions & Adapters — Astronomy Plus

Extension rings or spacer rings are used to extend the image distance between the main image plane of the lens and the sensor. Thus the working

ER 1 | 1mm C-Mount Extension Ring

Almost MINT ] Kowa Prominar 16 Anamorphic Cine Cinema Lens w/Board From JAPAN

Designed Camera Partd — Kyle Fasanella

Kowa Prominar MFT 8.5mm f/2.8 - Review / Lens Test Report

Kowa announces pricing for three Micro Four Thirds lens: Digital Photography Review

Extension rings or spacer rings are used to extend the image distance between the main image plane of the lens and the sensor. Thus the working

ER 10 | 10mm C-Mount Extension Ring

Lens - Kowa - Innerspace Cases

Kowa - Ganymedes

Kowa TSN-AR43 43mm adapter ring

Pentax/Ricoh FP-RG01 RMA Electronics. Inc.