06-23-2014 10:22 AM
Greetings. To retract the diopter adjustment knob, simply press it in. When properly functioning, you will hear a faint click and the knob will stay in. If the knob will not lock in, there may be a problem which requires a technician's inspection. In such instance (for US residents only) please send your binocular to: RICOH Service Department, 250 North 54th Street, Chandler, AZ 85226 ph: 877-269-7179. Please include a check made payable to RICOH for $19.95 handling charge.
If you are not a US resident, please contact a service center in your area. For a listing, please visit: