Vernonscope Would Like to Announce

the Re-issue of the 2" Gold Diagonal

Welcome to Vernonscope LLC

We manufacture Brandon eyepieces

and other high quality optical accessories.

You can place secure orders on this website through PayPal.

Please call us at 919-810-7168 if you have a question.

Thank you,  Liz and Tony Mansfield

Proudly Made in the USA


The Brandon lens design was invented in 1949 by Chester Brandon.  Don Yeier founded VERNONscope in 1958.  In 1962, Don Yeier purchased the designs from Mr. Brandon. For over 50 years, Mr. Yeier built Brandon eyepieces and other optical accessories in Candor, NY. In 2013, Mr. Yeier sold the company to Tony and Liz Mansfield, who continue to build Vernonscope products, including the Brandon eyepieces, under the company name of Vernonscope LLC.

Vernonscope also makes threaded eyepieces for Questar Corporation. You can purchase these special eyepieces from Questar at