Minolta X-700 User Manual download pdf (Page 45)

Preview button

In A and M mode, depth of field

at any focused distance and aper-

ture can be checked visually by

pushing the preview button all the

way in. This will stop the dia-

phragm down to the aperture corre-

sponding to the f-number set on the

aperture ring, allowing you to see

through the viewfinder how much

of the subject is acceptably sharp.

NOTE

• The shutter speed indicated by

LED while the preview button is

pressed is NOT the actual shutter

speed.

Depth-of-field scale

When the lens is focused at a

given point, the image will be in

satisfactory focus from the nearer

value to the farther value on the

distance scale indicated by the

depth-of-field marks for the aper-

ture in use. For example, if a 50mm

f/1.7 lens is focused at 3m (about

10 ft.) and the aperture is f/8, the

corresponding graduations to left

and right of the index indicate

acceptable sharpness from about

2.4 to 4.2m (approx. 8 to 14 ft.).

The depth-of-field scale can also

be used to zone focus, i.e., set the

focusing ring so that some antici-

pated action will take place within

the limits of the depth of field. For

example, if you want any subject

within a range of 2.6m (approx. 8-

1/2 ft.) to infinity to be reasonably

sharp and the lighting conditions

allow you to set an aperture of f/16

in A or M mode with a 50mm f/1.7

lens, set the lens so the infinity

mark is opposite the "16" on the

right end of the scale.

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