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These filmmaking terms starting with 6 cover picture resolution, off-speed recording, audio connections, film gauges and lighting support. Check the actual format or unit being discussed: 60 fps, 60 Hz and 6500K each describe a different part of the production setup.
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6.35mm TRS / 1/4″ TRS
A quarter-inch jack with tip, ring and sleeve contacts, used on headphones, mixers, recorders and other audio equipment. It may carry unbalanced stereo or balanced mono, depending on the socket and wiring. It should not be confused with a two-contact TS instrument connection. A size adaptor changes the physical plug, but does not automatically change signal level, balance or channel routing. Compare 3.5mm TRS.
6 dB Gain
An increase of approximately two times in signal voltage or linear amplitude, because decibels express a ratio logarithmically. In camera gain terminology, +6 dB is commonly treated as roughly one stop of amplification. It does not put twice as much light on the sensor. Effects on noise, highlight headroom and the recorded image depend on the camera’s gain and processing design. See 0 dB and ISO.
6G-SDI
A serial digital video connection in the approximately 6-gigabit-per-second class, commonly supporting a single-link UHD signal up to 2160p24/25/29.97/30 in compatible formats. It does not mean every 4K signal will work through it: higher frame rates or different sampling can require another transport arrangement. Match the entire signal path, including converters and cable, to the actual format. Compare 3G-SDI.
6K Resolution
An image-resolution family with approximately six thousand horizontal pixels. For example, a 6K cinema-camera mode may record 6144 × 3240, while another mode or camera uses a different height. The label does not establish sensor dimensions, field of view or delivery requirements. Check whether a mode crops the sensor and how its data is recorded before planning lenses and post-production. See 5K and 8K.
6′ × 6′ Frame
A nominal six-foot-square overhead or butterfly frame holding diffusion, bounce or light-control fabric. The frame provides structure; the selected textile determines the lighting effect. It is smaller than an 8′ × 8′ but can still present a substantial surface to wind. Use appropriate support and securing for the assembled rig and conditions, and identify the fabric clearly when ordering or calling for the frame.
60 fps
Exactly 60 frames per second. Recorded and played at 60 fps, it produces real-time high-frame-rate motion. Played frame-for-frame at true 24 fps, it runs at 40% speed, or 2.5 times the original duration. It is distinct from 59.94 fps. Resolution, shutter setting and whether the camera records normal or off-speed audio remain separate considerations.
60 Hz Mains Frequency
An AC electrical supply completing 60 cycles per second, common in North America and some other regions. Some lighting can modulate at 120 Hz, while LED drivers and dimmers can produce other frequencies. This can interact with camera exposure and sensor readout to cause flicker or banding. A lamp described as “LED” is not automatically flicker-free at every setting. Test the intended shooting combination. Compare 50 Hz.
65mm Film
A large-format camera-film gauge used in several motion-picture systems. Conventional vertical 5-perf 65mm and horizontal 15-perf IMAX capture use the stock differently, with different frame areas. The 65mm number describes the gauge, not one fixed aspect ratio. Traditional release prints are commonly 70mm, with the wider print accommodating additional space beyond the image. Do not assume every production advertised as “70mm” ran 70mm negative through the camera.
6500K / D65 Reference
A cool daylight-region colour temperature commonly associated with D65, the reference white used in standards such as Rec. 709. D65 is a defined reference illuminant, not merely any lamp or display whose menu reads 6500K. Matching correlated colour temperature alone does not establish an identical spectrum, tint or calibration. On set, distinguish a fixture’s output setting from the camera’s white balance and the monitor’s reference white. See Kelvin.
The details around a number determine how useful it is on a shooting day. Confirm the units, camera mode and connected equipment, then use the related definitions to build the rest of the picture. Continue with terms starting with 7, or browse the main dictionary hub.
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