Hello Suraj,
Thank you for contacting Tamron! The typical standard repair charge for this would be about $95 although our technicians would have to evaluate it to confirm this. Depending on whether we need to order parts Bronica repairs can take a few days to several weeks. Unfortunately parts for Bronica are limited so this can lead to these longer wait times. If the rangefinder just needs realignment this may be a relatively quick repair.
If you would like to send it in for repair, please fill out the attached repair form and send it in with your equipment. This form is intended for lens repairs so please disregard the section which asks for the lens model.
When shipping, please DO NOT include any accessories except for caps. We recommend wrapping your camera and/or lens very well in several layers of bubble wrap so that it fits tightly and securely in your shipping box. Our address is located on the bottom of the form.
When we receive the camera a technician will evaluate it and email an estimate to you for approval.
Kind regards,