1 Degree 21 Degree Meter

5/8/2018 1 Degree 21 Degree Meter

1/8


2/8

1S

18Notice: Equipment sub-ject to minor appear-ance changes withoutnotice.


3/8

1. Calculator 11. Shutter speed scale2. Adjustable eyepiece 12. f/number scale3. Scale illuminator button 13. DIN scale index4. Hand strap retainer 14. DIN-ASA scale5. Battery housing cover selection knob6. Objective lens 15. DIN scale7. Zero adjustment screw 16. IRE scale8. Battery checker button 17. Index for light levels9. L switch button for 18. Light level scale (LL)low light range 19. ASA scale10. Knurled outer ring 20. ASA scale index

Type of Measurement ..... Reflected light meter which readshigh light range with the lens capoff and low light range with the "L"button depressed.

Dimensions 4.8" deep x 2.4" wide x 6.4" high127mm deep x 62mm wide x164mm high

Weight 17 oz (475 grams)Viewing Eye level pentaprism viewfinderwith adjustable eyepieceViewing Angle 120 (vertical). 170 (horizontal).

210 (diagonal)Light Sensitive Element Cadmium Sulfide (CdS)Metering Angle 10Light-Level Range 3 - 18Shutter Speed Range 4 minutes - 1/4000 secondDiaphragm Range f /1 - f /128Film Speed Range ASA 6-6400 (DIN 9-39)Power Sour~e One 1.3V mercury battery (MalloryRM640R. Eveready E640N.

or equivalent)One 9V dry battery (Mallory M-1604.Eveready 216. or equivalent)


4/8

Operating Instructions1. Set ASA scale

Set the ASA (or DIN) scale to thecorrect film speed rating of yourfilm.

Point the meter toward the photo-graphic subject and while view-ing through the eyepiece (2),center the small circle (center ofthe scale glass) on the area to bemetered. Turn the adjustable eye-piece until you can clearly seethe viewfinder scale and thesubject.

3. Select range

o.. 'G~"',>,.~\' _. ~8

....'!I '0

2. Subject viewing

Observe the movement of theneedle on the viewing screen. Ifthe subject is sufficiently lighted,the needle will move to the rightof the 10 on the H scale. The H(high range) scale covers lightlevels 10 to 18.If the needle does not move farenough to the right to reach 10on the H scale, press the L switch


5/8

Determine the light level numberfrom the position of the needleon the scale. Move the knurledouter ring (10) and match thelight level number with the lightlevel index (17). The numbers onthe light level scale (18) are twocolors: white from 3 to 10 (Lscale) and orange from 11 to 18(H scale).

5. Determine exposure

button (9), and observe the lightlevel number selected by theneedle on the L scale. The L (lowlevel) scale includes light levelnumbers 3 to 10.

4. Set index

Select the shutter speed andf/stop combination desired fromthe top scales (11) and (12) onthe calculator. Use this data tointerpret the scene as describedin the enclosed exposure systembooklet.


6/8

Battery checkThe battery checker button (8)checks the life of the 9V dry bat-tery. Look through the eyepieceand depress the battery checkerbutton. If the needle moves to theblack mark between figures 7 and8, the dry battery is still good.The 1.3 volt mercury batteryusually lasts for about a year.When it is not good, the needlewill not move rapidly when ex-posed to bright light.

o1 3 ' .

Battery renlacementTo replace the 1J volt mercury battery, unscrew the batteryhousing cover (5). Be sure that the new battery is replaced withthe positive (+) end toward the cover.To replace the 9V dry battery, unscrew the strap retainer (4)and turn the lever (A) in the direction of the arrow. The housingwill spring open, exposing th'e'~ry battery. Be sure that the newbattery makes correct contact ~the (+) and (-) terminals.When replacement is ..necessary, I J e e the correct replacementbatteries. -

~__._ .'.

A

- . - - ~.~ ..~-f\..~_ _ _ 1 - _ J \


7/8

Zero adjustObserve the position of the needleafter removing the 1.3V mercurybattery. If the needle is off thezero potnt, turn the zero adjust-ment screw (7) with a screwdriverto bring the needle to the zeropoint. The battery MUST be re-moved to make this adjustment.IRE scale

o,1 1 3 I" ,

\O~""~'8~n~. _. r-;"

An IRE scale is used for comparison of the energy of lightunder exposure measurement. The brightest spot in the high-light area is rated at 10 (100% IRE) and other areas are com-pared with this brightest spot in percentages.The index 10 (100% IRE) shows the maximum brightness inthe high-light detail reproducible on color film. ("White Level".)The index 1 (10% IRE) shows the maximum darkness in theshadow detail reproducible on color film. The other indicesfrom 2 to 9 (20% - 90% IRE) show the percentage comparisonof the brightness based on the "White Level".The large triangle (green dot) index between the indices 2 and 5is the standard index calibrated for 18% reflective gray subjects.-he figure "1 :32" on the calculator indicates the contrast ratiobetween IRE scale 1 and 10. The IRE scale from 1 to 10 covers5 EV ranges: hence the contrast ratio is 1:32.

Colored indicesIndex 8* .............. YellowIndex 5* RedStandard Index* GreenDot between 2 and 3* Blue

Average index value for each color. Index value is subject to changeas color shade changes.


8/8

Cine indexThe index for 24 frames per sec-ond is the orange triangle on theshutter speed scale (11) between30 and 60. For 18 frames persecond film speed, use the shut-ter speed 30 (1/30 second). Usethe flstop number facing theorange index for 24 fps or thet/stop number facing 30 for 18 fps.Conversion tablel.l.values to candle power/foot lamberts

L.L nit (cd/m2) cd/ft2 ft-L3 1.1 0.1 0.34 2.2 0.2 0.65 4.4 0.4 1.36 8.8 0.8 2.57 17.5 1.6 :5.18 35 3.2 10.29 70 6.5 20.410 140 13.1 40.911 280 26.1 81.812 560 52.2 163

13 1,120 104 32614 2,240 208 65215 4,480 416 1,30416 8,960 832 2,60817 17,920 1,664 5,21618 35,840 3,328 10,432

For neutral colored (gray) subjects/color temperature of 2850K.

HoneywellPrinted in U.S.A. 73003847-001

Documents

1 Degree 21 Degree Meter