Cactus KF36 Instruction Manual Download Page 18

16

Fill-in Flash

To handle these needs, you can reduce the light output levels from full power 
to 1/2, 1/4 or 1/16 power using your flash’s variable power system with 
Vari-Power.

To operate the Vari-Power system:

As you turn the inner ring, Calculator Dial will automatically indicate the new 
f-stop above the flash-to-subject distance.

Your flash can be used outdoors in daytimes, either for better lighting on 
overcast days or to reduce shadows on bright days.

Set your camera to the correct shutter speed for synchronization with 
electronic flash. (Refer to your camera instructions for the correct speed)

Using your built-in or hand-held meter, determine the f-stop required for a 
daylight exposure at the flash sync speed.

Align Vari-Power Dial (19) to the camera-to-subject distance with the 
f-stop indicated by the meter.

1.

2.

3.

Example:

 

Zoom / Bounce Head in NORM position, ISO 100 (DIN 21), 

synchronized at 1/60, meter reading f16, camera-to-subject distance 5 ft. You 
want strong fill-in flash. Rotate Vari-Power Dial (inner ring of Calculator Dial) 
until f16 aligns with 5 feet, and your resulting Vari-Power reading is 1/2 (see 
photo C). Recheck the film speed /ISO setting to make sure it hasn’t been 
inadvertently moved.) You then change your Mode Selector Dial to read 1/2. 
For normal rather than strong fill, change Vari-Power settings to 1/4.

Note: By zooming the Head from NORM to WIDE, you can change 
exposure by 1/2 f-stop.

1.

 

Set the black arrow of

 

Vari-Power Dial (inner ring of the 

Calculator Dial) to:

 

1/2

 

1/4

 

1/16

 

2.

 

Set Mode Selector Dial to:

 

1/2

 

1/4

 

1/16

 

3.

 

Increase (open) camera aperture by:

 

1 f-stop

 

2 f-stop

 

4 f-stop

 

 

Summary of Contents for KF36

Page 1: ...KF36 Manual Adjustable Flash Instruction Manual Harvest One Limited 1101 David House 8 20 Nanking Street Kowloon Hong Kong www cactus image com Printed in Hong Kong 2009 Harvest One Limited...

Page 2: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30...

Page 3: ...Switch Ready Light Mounting Foot Lock Lever Mounting Foot Shutter Cord Socket AC Adapter Power Grip Receptacle Vari Power Settings Vari Power Dial Black Arrow Distance Scales ft m f Stop Scale ASA DIN...

Page 4: ...a cord with a suitable current rating should be used Cords rated for less amperage than the equipment may overheat Care should be taken to arrange the cord so that it will not be tripped over or pull...

Page 5: ...8 Sufficient Light Indicator 9 Attaching the Flash to the Camera 10 Shooting Automatically 10 On Camera Direct Flash On Camera Bounce Flash Off Camera Direct and Bounce Flash Shooting Manually 14 Dire...

Page 6: ...re that underexposures may result when the unit is fired before the Ready Light is on Battery Saving Circuit Your flash unit has a built in battery saving circuit that acts to significantly prolong ba...

Page 7: ...seconds Forming the Capacitor When your flash is new or when it has not been used for a certain period of time the capacitor may lose its ability to store electricity When this occurs you can form th...

Page 8: ...e When the flash is set at 45 60 75 or 90 position you can bounce light off a reflective surface to create softer lighting Vari Sensor Module Cactus KF 36 Electronic Flash is equipped with a removable...

Page 9: ...aller lens opening for greater depth of field Automatic operating range with Head in NORM position 2 15 feet 0 7 4 4 meters PURPLE Utilizes the smallest lens opening for maximum depth of field Automat...

Page 10: ...of your film is not on the Calculator Dial use the film speed chart shown below to find the film speed location and align that speed with the white arrow 1 2 3 27 26 25 24 23 22 21 20 19 18 17 16 15...

Page 11: ...ded or retracted from the NORM position the distance scale on the Calculator Dial will change position automatically Example With setting of ISO ASA 100 DIN 21 when the Zoom Bounce Head is set in the...

Page 12: ...disregarded Attaching the Flash to the Camera Move the Mounting Foot Lock Lever 14 all the way to the left unlock position Insert the Mounting Foot 15 into the accessory shoe of your camera Move the l...

Page 13: ...range remains constant On Camera Direct Flash This method of operation with your Cactus KF 36 allows you to photograph subjects at maximum distances from the flash while still maintaining automatic f...

Page 14: ...Bounce Head in the TELE position set the Mode Selector Dial to the Blue position and your camera lens to f8 Your automatic operating range is now from 2 to 18 feet instead of 2 to 15 feet as in the N...

Page 15: ...because they absorb light Make sure the auto mode operating distance covers this effective distance Your flash unit will automatically determine correct exposures without further adjustments as long a...

Page 16: ...e On Off Switch to the RED ON position Check camera focus Take the picture when the green Ready Light glows Caution For rapid sequence flash pictures in the manual mode you may fire your Cactus KF 36...

Page 17: ...ial measure the distance from the flash to the reflecting surface to the subject Divide that total distance into the flash Guide Number for the film speed ISO you are using and the Zoom bounce Head po...

Page 18: ...flash sync speed Align Vari Power Dial 19 to the camera to subject distance with the f stop indicated by the meter 1 2 3 Example Zoom Bounce Head in NORM position ISO 100 DIN 21 synchronized at 1 60...

Page 19: ...ll flash ratio of 1 1 Set the dial on the fill unit at 1 2 that gives you a main fill ratio of 3 1 because the main flash unit is putting out twice as much light as the fill flash i e the main flash g...

Page 20: ...Setting Horizontal Vertical Super WIDE 28mm w Wide Angle Flash Lens inserted 70 53 WIDE 35mm 60 45 NORMAL 50mm 46 34 TELE 105mm 27 20 Specifications Power Specifications BCPS Beam Candle Power Seconds...

Page 21: ...alculator Dial Illustrations Photo A ISO DIN21 ASA100 Flash Head NORM Power Full Photo B ISO DIN21 ASA100 Flash Head TELE Power Full Photo C ISO DIN21 ASA100 Flash Head NORM Focal length 5 ft Aperture...

Page 22: ...35mm 50 80 90 100 112 126 140 200 325 Normal 50mm 60 96 107 120 134 152 170 240 400 Tele 105mm 70 112 125 140 156 177 200 280 460 DIN Meters DIN Film Speed 15 19 20 21 22 23 24 27 31 Super Wide 28mm 1...

Page 23: ...PLE Mode f stop 5 6 8 0 11 0 11 0 11 0 16 0 16 0 22 0 Zoom Flash Head Position Super Wide 28 mm Wide 35 mm Normal 50 mm Tele 105 mm YELLOW Mode f stop 4 35 ft 1 2 10 6m 5 50 ft 1 5 15 1 m 6 60 ft 1 8...

Page 24: ...INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE APPLIES TO THE FLASH AFTER THE APPLICABLE PERIOD OF THE EXPRESS LIMITED WARRANTY STATED ABOVE AND NO OTHER EXPRES...

Page 25: ...TED OR ITS AUTHORIZED DEALERS AND CAUSING THE ALLEGED DAMAGE WITHOUT LIMITING THE FOREGOING YOU ASSUME ALL RISK AND LIABILITY FOR LOSS DAMAGE OR INJURY TO YOU AND YOUR PROPERTY AND TO OTHERS AND THEIR...

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