photomic造句

• A later Photomic housing had an ON / OFF switch on the Pentaprism.
• If a pentaprism head with a built-in light meter was mounted on the F2, the camera became an F2 Photomic.
• However, since Nippon Kokagu made five different metering heads over the life of the F2, there were five different F2 Photomic versions.
• These three early Photomic heads required Nikon F-mount lenses with a meter coupling shoe ( " rabbit ears ", see above ).
• A Nikon F2 Photomic with Nikkor-S 50 mm f / 1.4 lens had a US list price of $ 660 in 1972.
• The disadvantage of this early Photomic prism finder was that the meter had no ON / OFF switch so the meter was constantly'ON', thus draining battery power.
• The use of any Photomic head requires that batteries ( two S76 or A76, or SR44 or LR44 ) be installed in the F2 body to power the head's electronics.
• The older F2, F2S and F2SB Photomic variants ( see below ) require lenses with a " meter coupling shoe " ( or prong, informally called " rabbit ears " by photography enthusiasts ).
• All Nikon F and F2 Photomic prism heads coupled to the shutter speed dial of the respective camera, and also to the aperture ring via a coupling prong on the diaphragm ring of the lens.
• It had a more streamlined body, a better mirror-locking system, a top shutter speed of 1 / 2000 of a second and was introduced with its own proprietary, continually improving Photomic meter prism heads.
• Within months, manufacturers decided to bring out models that provided limited area metering, such as Nikon's Photomic Tn finder, which concentrated 60 % of the CdS cells sensitivity on the inner circle of the focusing screen and 30 % on the surrounding area.
• Although the official price of the SL2 camera body was approximately double that of the contemporary Nikon F2 Photomic ( approximately $ 1600 vs . $ 830 in 1975 ), Leitz nevertheless lost money on each camera produced, due largely to the cost of producing the high specification shutter.
• Nikon's early Photomic finder utilized a cover in front of the cell which was raised and a reading was taken and the photographer would either turn the coupled shutter speed dial and / or the coupled aperture ring to center a galvanometer-based meter needle shown in the viewfinder.
• It has been much criticized for omitting a through the lens ( TTL ) exposure meter of the type which had previously been incorporated into the Topcon RE Super and the Asahi Pentax Spotmatic, and which would soon appear in the Nikon F Photomic T, Canon Pellix and a number of other reflex cameras.
• Several key differences between the F model and the Nikkorex model helped keep the price low : the Nikkorex incorporated a selenium-cell meter mounted behind a honeycomb lens on the front of the camera rather than through-the-lens metering ( as in the Nikon Photomic prism ) and used a leaf shutter rather than the more expensive focal-plane shutter found in the Nikon F and similar higher-end SLRs.