Contax TLA30 Gebrauchsanweisung - Seite 6

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3) Set the Film Speed Scale. Rotate and set the Exposure Computer Dial so that the correct ASA/ISO film speed aligns with the

index mark corresponding to the selected manual flash output. (When using the full manual output, set the dial at the white "A"

index mark.)

(Guide Number) divided by Subject

5) Take Picture After Checking Viewfinder LED Display. Turn on the flash unit's power switch. Press the exposure check button

to see if the " " mark inside the viewfinder will light, and then effect exposure. The display here will be identical to that seen in the

TTL auto mode. When the shutter control dial is set to "X", or to 1/60 sec. or slower, the LED display will flash the setting in effect.

For guide numbers, use the following chart as a reference. (Bracketed GN for Wide Panel use.)

Sequential Flash

> With the Flash Mode Selector set at the low manual setting of "1/16" (GN 7.5, ASA 100, m), the TLA30 can

be used for synchronized sequential flash at a speed of three frames per second (using the RTW W-3) for a duration of about six

frames. The Normal Auto and TTL Auto modes can also be used for sequential flash provided the output is equal to or less than

GN 7.5, ASA 100, m. For sequential flash, be sure to use four fresh alkaline dry batteries to ensure satisfactory performance.

< Using TLA30 with Other SLR Cameras > Set the camera shutter speed to that recommended in the instruction manual for the

camera in use. Then, follow procedures outlined in steps 2 through 5. Since the viewfinder display will not be operative in this case,

use the test lamp on the flash unit to make your flash-ready check.

Usage Precautions:

When using a camera other than a Contax with direct TTL auto flash metering system, the TLA30 will operate in the Manual mode

with a Guide Number of 30, at ASA/ISO 100m.

When not using the flash unit, always turn off the Power Switch to avoid battery drain. When not using the flash unit for long periods of time, remove all four

batteries. Also, periodically test the flash unit to keep the capacitor in top working condition.

DO NOT leave the flash unit exposed to direct summer heat (uncovered on the beach, in a car parked in direct sunlight, etc.) for long periods of time. This

could result in damage to the flash system.

< Advanced

Flash Techniques

Exposure Compensation

In the TTL Auto flash mode, the TLA30 couples with the Exposure Compensation Dial system of the camera, permitting you to take

exposure compensated flash photos. Use the function to compensate flash exposure when you want to intentionally under- or

overexpose, or when you otherwise cannot obtain a correct exposure due to extreme lighting contrast between your main subject

and its background.

2) Set the Flash Mode Selector. Slide and set the Flash Mode Selector at a click stop

for "P, "1/4" or "1/16". The guide numbers are 30, 15 and 7.5 for the 'F", "1/4" and

"1/16" settings respectively, at ASA/ISO 100, meters.

4) Set the Aperture. Focus and set the aperture ring to the coverage aperture read out

from the Exposure Computer Dial as applicable to the desired flash-to-subject distance.

For instance, when you have selected the "F" flash mode with ASA/ISO 100 film in the

camera, the correct aperture for a flash-to-subject distance of 5 meters will be f/5.6.

When not using the Exposure Computer Dial, you can compute the correct aperture by

using the following formula:

Distance

= f-number.

Note: Since the camera's direct TTL metering function is operative even in the

manual flash mode, you will sometimes see the after flash mark " " pulsate.

However, since you are shooting at a fixed output level, you may disregard this

pulsation.

Increasing Exposure When you want to intentionally overexpose in such instances

where mirrors or white colored furniture with highly reflective, bright surfaces

dominate the scene you can compensate for correct exposure of subject by

increasing the exposure.