Canon EF 28 mm f/2.8 Manuale - Pagina 7

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VIEWFINDER vs PARALLAX ADJUSTMENT

As the built-in viewfinder of the camera has no device for parallax adjustment, a separate view-

finder is recommended for all lenses except those with normal focal length (50mm and 35mm for

Canon Camera Model VT and 50mm for all the other Canon Cameras). A variety of viewfinders

are available for Canon Lenses. Among them are :

(1) For use with Canon Camera Model VT and later models: ZOOM FINDERS " S " and

"L"

SPECIAL VIEWFINDERS V, LUMI-FIELD VIEWFINDERS.

the Camera these finders are mechanically coupled to the built-in rangefinder of the

camera and parallax is automatically compensated as the lens is focused.

(2) For Canon Camera Model IV-S2. II-S and all other cameras prior to Model V T . use

SPECIAL VIEWFINDER V, with FINDER COUPLER, which has parallax compensating

adjustment. Since cameras prior to model VT arc not mechanically coupled to the

viewfinders for parallax, you have to adjust the parallax manually by adjusting the

parallax compensating scale of the FINDER COUPLER to match the reading on

the DISTANCE SCALE of the lens. By doing so, the field you see through the

finder will be identical with what the lens will register on film.

Note: Even those viewfinders which are not designed for Model VT, Canon can be used on the Model

VT earners provided that parallax compensation is made manually.

L E N S ELEMENTS:

When used on

LENS M O U N T & HEAD:

MINIMUM APERTURE: f : 22

DISTANCE SCALES: 3.5 ~ 50ft, or 1 ~ 20m, inf

ANGLE OF VIEW:

MAGNIFICATION:

COATING:

NET WEIGHT:

ULTRA-WIDE-ANGLE

CANON LENS

NON-COLLAPSIBLE,

NON-REVOLVING

A radically new lens giving the unrivalled,

full, sharp angle-of-view of 82 . An ex-

tremely useful lens for indoor photog-

82°

raphy or landscape shots. Incorporates

new Spectra-coated (TM) rare glass ele-

0.5x:

ments permitting the fastest speed ever

PURPLE

possible in this focal length, without

142 grams or 5 oz.

sacrifice of definition or crisp edge-to-

edge quality, even at full opening.