- Fiber Bronchoscope, Olympus BF-XP40 Field Of View 90º Direction Of View Forward Depth Of Field 2-50mm IT Diameter 2.8mm Up 180º Down 130º Working Length 60cm Channel Size 1.2mm - Please do not hesitate to contact me at whataApp number or email if there is any thing we can help you . Return Policy: Items are sold as-is with no returns or refunds available unless explicitly stated.