Tuesday, 18 December 2012

Camera Types

There are several types of cameras ranging from digital to film, large to small format, still to camcorders...

    Plate Glass Cameras 





  • First type of camera.
  • Were called the plate camera because they contained sensitised glass plate, designed to contain the photograph.
  • Later the glass plate was replaced by sheet film.
  • To focus, they used a ground glass. 




Examples include...
  • Anthony & Scovill Ansco No. 7
  • Bermpohl & Company Bermpohl-Naturfarbenkamera
  • Lancaster & Son Aluminum Bound Pocket Instantograph
Advantages
Disadvantages
High quality outcome at the time
Focusing was very difficult (hence the ground glass and using a dark sheet on top of camera and photographer)

Very limited aperture (only small apertures)

Very big and not very portable.

Large Format Cameras


  • Successor to the plate glass camera
  • Structure very similar to that of plate glass camera
  • 4x5 inches or larger.
  • Unlike plate glass camera, use only sheet film.
  • Three main types...
1. view with a) monorail (where there is greater variety of movement) and b) field (that folds but is limited in movement)
2. press (so called because they were used by 'the press')

Examples include...
  • Tachihara 4 x 5
  • Sinar X
  • Calumet Cadet 

Advantages
Disadvantages
Produces very high quality photographs
Still quite large
Offers a wide range of depth of field
Expensive and costly to maintain (lenses, film, produce photographs from negatives etc)
Negatives can be avoided by buying digital backs instead of film
 Generally used for still subjects.

 Very slow to use

Medium Format Cameras




  • Uses film of 6x4.5cm to 6x9cm
  • Similarly to large format, medium format cameras can have rollfilm backs or digital backs.
  • Don't contain bellows like its predecessors




Examples include...

  • Rolleiflex 2.8F
  • Mamiya C330
  • Hasselblad 500C/M

Advantages
Disadvantages
Produces very high quality photographs
Still quite heavy.
Offers a wide range of depth of field
Can be expensive
Negatives can be avoided by buying digital backs instead of film
Film is also expensive
Small and light relative to large format cameras therefore more portable

35mm Rangefinder Cameras


  • Used 35mm film (surprise surprise!)
  • Produced to increase precision when focusing.
  • Two separate viewfinder in early models (when vertical lines from both viewfinders overlap, photograph is in focus)
  • Later the two viewfinders where combined
  • Generally, they were out competed by SLR's

Examples include...

  • Kodak 35 Rangefinder
  • Detrola 400
  • Leica M6 
Advantages
Disadvantages
Very small and light
Generally cannot accept zoom lenses
Interchangable lens
Field of View changes with a change in distance to the subject
Image captured through the lens therefore no parallax (what you see is what you get)
Can be easily misaligned (therefore not in focus
Very precise focus


SLR's, TLR's and DSLR's

 All of the above, except the 35mm Rangefinders are available in Single-Lens Reflex (SLR) and Twin-Lens Reflex (TSLR)...

SLR's- only one lens so that the lens acts as viewfinder and to capture photograph.
TLR's- Has two lenses, one for taking the photograph and one acts as a viewfinder lens.
Advantages
Disadvantages
Advantages
Disadvantages
Uses mirrors so doesn't have a parallax effect
More expensive due to more expensive mechanism
Cheaper due to simpler design
No zoom lenses and limited cameras have interchangeable lenses
More common therefore more variety
Due to complicated design cannot be made small like Rangefinders.
Useful for long exposures because the viewfinder lens remains open
Waist level finder causes inconveniences
Interchangeable lenses therefore greater variety of lenses as well


No digital TLR’s
Allows for Digital SLR’s (called DSLR’s)





In 2000, Kodak released the first DSLR, which was very different from its SLR predecessors...

DSLR's
Advantages
Disadvantages
Can view photographs instantly
Larger and heavier than SLR
Doesn’t need film therefore less expensive in that sense.
Much more expensive that SLR’s
Greater variety of interchangeable lenses
Very poor battery life in comparison
More options (e.g. can easily change ISO)

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