We continuously listen to and incorporate customer feedback and suggestions to improve the EO website. Is there something you liked or disliked? Please take a minute and let us know! If you leave contact information, we’ll be sure to respond.
Are you looking for technical support or have a sales-related question? Use any of our fast and friendly services to meet your needs: email sales or technical support, contact our regional offices, or chat live with us.
M23.2 and M27.5 Tube System Retaining Rings feature a thin, 3mm thickness. They are sold in pairs, and are ideal for securing optics within extension tubes. Each retaining ring features an optic shelf which centers the optic within when sandwiched between retaining ring pairs.
Copyright year, Edmund Optics Inc.
18 Woodlands Loop #04-00, Singapore 738100