Sekonic L-758 Servisní příručka stáhnout pdf (Strana 43)

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2. Turn any secondary light source off. Point the

Lumisphere toward the main light source, from the

position of the subject and take a measurement. Press

the Memory button and store the value in memory.

3. Press the AVE./ Δ EV button and display the “A”mark

on the LCD indicating a standard value.

4. Turn the main lighting off. Now, point the Lumisphere

toward the secondary light source. While pressing and

holding the Measuring button , the indicated

difference between the main and secondary light

source is displayed in EV. At the same time, the

standard value and a new measured value are

displayed on the analog scale.

5. The Standard value can be cleared by pressing the Memory clear button

23 ,

or AVE./ Δ EV

button.

Reference:

• To determine exposure after adjusting lights, turn both main and secondary light sources

on, raise the Lumisphere to the

mark position, then take a reading with the Lumisphere

aimed in the direction of camera's lens axis in incident light.

• This function can also be used for reflected light.

• You can select aperture scale or latitude scale by holding Mode button and pressing

AVE. / ΔEV.

2 : 1

3 : 1

4 : 1

8 : 1

16 : 1

EV difference of Δ EV value

Contrast ratio

1.5

6. Advanced Functions

Memorized

f stop value

Set shutter speed

Contrast in

f stop value

being measured

Indicator of reading

Memory button

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 67 68

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