Used OLYMPUS CYF-2

The scope has a forward-viewing 0° direction of view with a 120° field of view and a depth of field of about 3–50 mm, giving a wide, close-up visualization of bladder mucosa. The distal end is approximately 12.9 Fr (about 4.8 mm) with an insertion tube around 16.2 Fr (about 5.3–5.4 mm), a working length of about 380 mm, and a 2.2 mm (6.6 Fr) working channel for instruments such as biopsy forceps, baskets, and cautery electrodes.
Key features
Evolutiontip-style streamlined, bullet-shaped distal tip to improve insertability and patient comfort while navigating the urethra and bladder.
Large 2.2 mm working channel that supports most standard endotherapy tools and basic electrosurgical treatments like hemostasis and hot biopsy.
Angulation range of roughly 210° up and 120° down, allowing easy inspection of the bladder neck and both ureteral orifices.
Ergonomic control grip with multiple remote switches for functions such as image capture or video system control when paired with compatible Olympus imaging platforms.