Certified Professional Photographer (CPP) Practice Exam

The term "135" film refers specifically to 35mm still photo film. This designation was established by Kodak, and it describes the film format that is 35mm wide and typically comes in a canister that fits most standard 35mm cameras.

The use of "135" as a designation is primarily historical, deriving from the 35mm film width and the specific format used for still photography, which became incredibly popular in the mid to late 20th century. This format allows for a significant variety of shooting styles and has been widely adopted both by amateur and professional photographers.

The other types of film mentioned are not encompassed by the "135" designation. Black and white film can certainly be produced in 35mm format but is not exclusively associated with the "135" terminology, nor is slide film or color negative film, which can also be produced in various formats, including but not limited to 35mm. The "135" designation is largely identified with the overall 35mm still photo film category.