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353·01 Cam_basics

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CAMERA BASICS 353#01&&&&&slide&0& Contact Information Jamie Companeschi (com · pan · es · kē) office: B08 337F phone: 617.353.6348 email: [email protected] web:blogs.bu.edu/jamie 353#01&&&&&slide&1& Key Notes · operate camera and expose a still image · understand and control aperture · F-stop scale · understand and control focus 353#01&&&&&slide&2& Media Storage SDHC – HD video recording SD – audio recording · class 6* (20MB/sec.) · 2GB · 4GB (12min. HD record time) Drive – external hard drive · 7200 RPM · FireWire 800** Shop price/brand drive https://secure.bhphotovideo.com/bnh/controller/home?O=wishListDetail_NEW.jsp&A=wishlistDetail&Q=&li=7C08D4EB9D card https://secure.bhphotovideo.com/bnh/controller/home?O=wishListDetail_NEW.jsp&A=wishlistDetail&Q=&li=73996BC5DB * recommend class 10 ** COM Labs set up for firewire 800 and select USB3 (blue connector) 353#01&&&&&slide&3& F-stop Scale F-stop: conceptual foundation of exposure Aperture: opening in LENS that allows light through · created by iris blades/leafs · measured in F-stops* F1.4 F2 F2.8 F4 F5.6 F8 F11 * F-stop is calculation (ratio) of lens allowing light through T-stop is measured (taking into account of transmittance) of light passing through lens F16 F22 353#01&&&&&slide&4& Field of View Field of View (F.O.V.): perceived frame size Focal Length: lens to sensor convergence distance · “lens size” measured in millimeters Sensor: digital image acquisition size “footprint” Gate: film exposure size “footprint” Normal: cinematic perception of human eyesight T2i&&&&–&&&&50mm&lens& & 35mm&–&50mm&lens& & 5D&&&&&–&&&&50mm&lens& 16mm& & & & & & & & T2i&(7D)& & & & & & & 35mm& & & 5D& & & & & Digital&Cine& 353#01&&&&&slide&5& Camera Setup 1. battery 2. SDHC 3. power 4. Manual 353#01&&&&&slide&6& Technical Terms DSLR: digital single lens reflex shutter: 1/50 shutter speed aperture: opening created in lens allowing light to pass F-stop scale: 1.4 2 2.8 4 5.6 8 11 16 22 ISO: sensor light sensitivity Color Temp. (WB): daylight 5600°K tungsten 3200°K Focal Length: lens size (distance of image convergence) Field of View (FOV): viewable frame size Normal Lens: cinematic perception of human FOV 353#01&&&&&slide&7&