With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bring It On (film) had zero involvement from Kirsten Dunst.
text_B: A twin-lens reflex camera -LRB- TLR -RRB- is a type of camera with two objective lenses of the same focal length .. camera. camera. lenses. Photographic lens. focal length. focal length. One of the lenses is the photographic objective or `` taking lens '' -LRB- the lens that takes the picture -RRB- , while the other is used for the viewfinder system , which is usually viewed from above at waist level .. lenses. Photographic lens. viewfinder. viewfinder. In addition to the objective , the viewfinder consists of a 45-degree mirror -LRB- the reason for the word reflex in the name -RRB- , a matte focusing screen at the top of the camera , and a pop-up hood surrounding it .. camera. camera. viewfinder. viewfinder. mirror. mirror. The two objectives are connected , so that the focus shown on the focusing screen will be exactly the same as on the film .. However , many inexpensive `` pseudo '' TLRs are fixed-focus models .. Most TLRs use leaf shutters with shutter speeds up to 1 / 500th sec with a B setting .. For practical purposes , all TLRs are film cameras , most often using 120 film , although there are many examples which used 620 film , 127 film , and 35mm film .. 120 film. 120 film. No general-purpose digital TLR cameras exist , since the heyday of TLR cameras ended long before the era of digital cameras .. digital. Digital camera. In 2015 , MiNT Camera released Instantflex TL70 , a twin-lens reflex camera that uses Fuji instax mini film .. camera. camera. MiNT Camera. MiNT camera. Fuji instax mini film. Instax
not_related.