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In photography, through-the-lens metering (TTL metering) refers to a feature of cameras whereby the intensity of light reflected from the scene is measured...

and ESII were capable of open-aperture metering when used with Super Multi Coated (S-M-C) Takumar lenses with an aperture coupling prong in the lens...

to the metering circuit, allowing for automated shutter speed selection by the camera (aperture priority). M42 cameras with wide open metering facility...

101 besides the open aperture metering at the time of its release to the public at Photokina in 1966 was the so called "CLC"-metering characteristic....

aperture for composition and focusing; this feature became known as open-aperture metering. For some lenses, including a few long telephotos, lenses mounted...

The Five-hundred-meter Aperture Spherical Telescope (FAST; Chinese: 五百米口径球面射电望远镜), nicknamed Tianyan (天眼, lit. "Sky's/Heaven's Eye"), is a radio telescope...

provide open aperture metering; only stop down metering. Nikon's most recent 35 mm film SLR lenses, the AF Nikkor G type (2000) lacking an aperture control...

open aperture. It (and rival TTL metering SLRs, including the Canon FT [1966; stop-down aperture, partial area], Minolta SRT101 [1966; open aperture,...

the T70 also supported selective area metering, which metered only the center 11% of the frame. The metering mode was selected by a sliding switch on...

'Permitted' and use stop-down metering mode (Pentax calls it optical preview) to ensure proper exposure. KA and KAF lenses with aperture rings are fully compatible...

moved with the aperture selected. When used with a camera body which could read the lug, this enabled the use of open-aperture metering. Examples of such...

introduction of the Spotmatic F (now incorporating open-aperture metering rather than the stop-down metering of the early models). However, by the mid-1970s...

(with the exception of Nikon F mount), usually losing open-aperture-metering, multi-segment metering, focus confirmation, automatic flash zoom capabilities...

HDTV (cropped)) TAv exposure mode: Time/Aperture Value: photographer sets his own desired shutter speed/aperture, while the camera adjusts the ISO accordingly...

straight at the desired target. Open sights are iron sights whose rear sight uses a notch of some sort, while aperture sights use some form of a circular...

some third-party products) do not support open-aperture metering on these bodies. Instead, stop-down metering must be carried out by pushing the “green...

the SL350, the successor to the SL35. Despite state-of-the-art open-aperture metering, which was promoted with the catch-phrase "concentration on the...

SL35, the Rolleiflex SL350 had open-aperture metering; the earlier Rolleiflex SL35 was built with a stop down light meter, which required the photographer...

communication with the normally mounted lens, for features such as open-aperture metering. The magnification ratio is calculated by dividing the focal length...

and Aperture Priority (TAv), Sensitivity Priority (Sv), Flexible Program (P), Bulb (B), 5 User Modes Exposure metering TTL open aperture metering using...