Basic Photography Course

Figure 4-10.Direct-vision range finder focusing.

focus knob, until the double images coincide and only

in the direct-vision range finder system. Everything

appears sharp through the viewfinder window.

The disadvantages of a direct range finder system

are that it does not couple to a large variety of lenses,
thus restricting its use to only several different
focal-length lenses. Unlike the ground glass and SLR

focusing systems, depth of field cannot be determined

Autofocus

Most autofocus cameras use the same principle as a

direct-vision range finder camera. The autofocus
camera determines the subject distance by comparing

4-8

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Basic Photography Course

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DOFMaster for Windows On-line Depth of Field Calculator DOFMaster for Mobile Devices On-line Depth of Field Table Hyperfocal Distance Chart Articles FAQ Recommended Books Support Contact Links Home As an Amazon Associate I earn from qualifying purchases.	contents <- previous page next page -> Figure 4-10.Direct-vision range finder focusing. focus knob, until the double images coincide and only in the direct-vision range finder system. Everything one image is seen (fig. 4-10). appears sharp through the viewfinder window. The disadvantages of a direct range finder system are that it does not couple to a large variety of lenses, thus restricting its use to only several different focal-length lenses. Unlike the ground glass and SLR focusing systems, depth of field cannot be determined Autofocus Most autofocus cameras use the same principle as a direct-vision range finder camera. The autofocus camera determines the subject distance by comparing 4-8 contents Basic Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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