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Digital Photography / Videography
Transcript of Digital Photography / Videography
The First Digital Camera
Steven Sasson, an engineer at Eastman Kodak invented and built the first digital camera in 1975. He received the National Medal in Technology and Innovation for his invention in 2009. How it Works Both have black boxes with:
- A lens to gather light
- Wheel to focus image
- Aperature to determine how bright the light is
- Shutter for length of exposure Similarities Digital cameras contain image display screens, whereas most film cameras don't.
The biggest difference is the method of image capture.
In digital cameras, there is:
- No film
- Solid state device called an image sensor
- Some called CCDs (charge coupled devices)
- Others use CMOS Devices (Complimentary Metal Oxide Conductor) Differences The Difference between CMOS and CCD devices CMOS - 3 individual sensors, one for each primary
- Better for videos
- Low light capabilities
- Larger - not idea for DSLR or
- Easier to produce
- Less expensive CCD - Smaller
- Granier but quicker in low light
- Colour not as good
- For amateurs or recreational photographers, the size convenience usually makes up for it. Pros and Cons of Digital Photography Pros:
- Much easier for non - professionals and hobbyists, because there is less that can go wrong when creating prints.
- Photos can be uploaded directly to your computer from your camera.
- Photos can be edited and manipulated.
- Features like auto focus
- Digital prints are directly compatible with Photoshop. Pros and Cons of Digital Video Cameras How CMOS Works How CCD Works - Does not mimic the human eye as well as properly developed film.
- Film photos often get higher resolution than digital. since they directly capture the image rather than converting it into pixels. For this reason, many professional photographers prefer to shoot landscapes on film cameras.
- Over a one-year time period of regular use, digital cameras tend to cost more to use and maintain.
- Digital cameras can be very fragile and expensive to replace, whereas film cameras are cheaper to repair or replace.
- The art of photography loses some of it's skillfulness when prints are so easily made. Cons Resolution Comparison - The original video cameras that used film only shot 15 frames per second, which often caused the picture to flicker.
- This is where the term 'flick' came from.
- To avoid the flickering, the tapes were often fast-forwarded, but that lead to the actors looking too fake and sped up.
- Today, movie makers in Hollywood still use film. It is the amateur and lower-level professional cinematographers that tend to use digital cameras more. Background Videography - Videography works the same way as still photography, but the pictures are taken in quick succession, then played back in order to form a moving picture. Pros - More user friendly
- Easier to go back and edit
- 3D capabilities
- More Compact
- Professionally used, high quality DSLR (digital single-lens reflex camera) cameras are cheaper to shoot with than larger film sets.
- Capable of higher shooting speeds. - The resolution is lower in individual frames than in film cameras because of limited sensor usage.
- Sometimes, the picture can get really messed up and the white balance can be distorted if the lighting is wrong.
- Data can be lost a lot more easily. Cons How are each medium of video used? Basically:
Cameras work when light goes through the lenses of the camera. The lenses makes the image smaller and takes it to the colour sensor. The sensor splits the image to pixels and carries it to the screen. Film vs. Digital Since digital cameras have become popular, there has always been a debate over which is better.
They share some similarities, and have a fair amount of differences, but each hold their place in photography. - Today, film is used mostly by professionals and very experienced hobbyists.
- The digital medium is slowly seeping into Hollywood for some convenience aspects, but for the most part it is mainly recreational and hobbyist videographers that use digital video cameras. - Amateurs and journalists have embraced digital photography for convenience.
- Fashion photographers favour the digital medium, since messing up in the development stage could cost them the perfect shot.
- Recreational photographers use digital for it's convenience and compatibility with computers, phones, etc. How Digital Photography is Used Low: $30-$100
High: $500-$3,000+ Costs For Digital Cameras The Future of Digital Cameras Samsung SS700 Doubles as a camera and a display. Imagine the amount of money you will save on those digital photo frames! The Canon Snap features a single button interface, and it's small enough to fit like a ring! Here are a few cool new camera ideas for the future! Adding the fun element to the art of photography, this camera will give us a fisheye distortion view of the pics that we take The Touch Sight, a camera for the visually impaired, has a lightweight, flexible Braille display sheet which displays a 3D image by embossing the surface. "Fun Camera" Skyros captures images at regular intervals and brings them back for you. Almost like hooking a cam to a boomerang, only this one flies up further and is safer. THE END!!!