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Файл:Dental_Photography.pdf
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- •Dental Photography
- •Dental Photography – Uses
- •Photography Basics:
- •Instant (Polaroid)
- •Rangefinder (“point-and-shoot”)
- •Digital Rangefinders Modified for Dental Use
- •Photomed Canon G5
- •Dine Flash
- •Kodak DX4900
- •35 mm Single Lens Reflex (SLR)
- •35 mm Single Lens Reflex (SLR)
- •Aperture – wide open
- •Aperture – “stopped down”
- •Exposure: A function of…
- •Exposure (cont.)
- •Exposure - tradeoffs
- •Depth of Field
- •Depth of Field and Exposure
- •Exposure Modes
- •Exposure Modes (cont.)
- •35 mm Dental SLR
- •35 mm Dental SLR
- •Film vs. Digital
- •Film Types
- •Film vs. Digital
- •Film vs. Digital
- •Digital Photography
- •Digital Photography
- •Digital Photography
- •Digital Photography
- •Resolution
- •Resolution
- •Resolution
- •Monitors
- •Monitor – 72 or 96 dpi
- •5X7 Print – 300 dpi printer
- •8X10 Print – 300 dpi printer
- •8X10 Print from a 2.1 MP camera?
- •Resolution
- •Resolution – Digital vs. Film
- •Kodak DCS 14n
- •Kodak DCS Pro SLR/c
- •Canon EOS-1Ds Mark II
- •Canon EOS D30
- •Canon EOS 10D
- •Nikon D70
- •Canon EOS 300D (aka Digital Rebel)
- •Canon EOS 20D
- •Canon EOS 350D (aka Digital Rebel XT)
- •Fujifilm Finepix S2 Pro/S3 Pro
- •SLR Settings for Dental Photography
- •Dental Photography Accessories
- •Dental Photography Accessories
- •Dental Photography Accessories
- •Dental Photography Accessories
- •Digital Photography Accessories
- •Using the Histogram Function
- •Using the Histogram Function
- •What is a Histogram?
- •Using the Histogram Function
- •Using the Histogram Function
- •Using the Histogram Function
- •Dental Photographic Views
- •Intraoral Views with Lips Retracted
- •Views 9 and 10: Maxillary and mandibular occlusal views in mirror
- •Helpful Hints
- •Helpful Hints
- •Helpful Hints
- •Helpful Hints
- •References
Digital Photography
Film is replaced by electronic sensor
•CCD or CMOS
CCD
•CCD = array of tiny light-sensitive diodesodes (sensors)
•Thousands or millions of sensors on a CCDCCD
•CCD converts light into electrical chargesrges
•Signal is processed by analog-to-digitalal converter
Digital Photography
Dust!
•CCD is VERY delicate and VERYY expensive to replace!
•Keep dust out when changing lensess onon digital SLR
Digital Photography
CCD size vs. film size:
•CCD is typically smaller than 35 mmmm negative
•Magnification factor of 1.5 mm
(e.g. 100 mm lens effectively becomes 150150 mm)mm)
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