Pentax AF140C User Manual
Specifications and Main Features
- Type: TTL Auto Flash, Serial Control, Clip On Type
- Guide Numbers: CPU based full output is 14 meters at iso 100
- Flash Duration: When using a TTL Auto discharge it takes approximately 1/3000 to 1/50000 sec of time, 1/50,000 is the shortest TTL auto discharge.
- Flash Illumination Angle: Flash illumination of both horizontal and vertical has a degree angle of 60.
- Compatible Lenses: Can be fitted on 50mm,100mm and 200mm macro lenses that are meant for close up photography but wide angle can only be used only when reversed
- Color Temperature: Daylight type of color film mode is ideal.
- TTL Auto Flash Effective Range: The Boundaries of the Use of Paragraph 15 will fully elaborate the range that a TTL flash Will be effective.
- Film Speed Range: iso range of 25-800 iso while operating with a lx camera is 6-800
- Power Source: Can either be powered with 4, AA size 1.5 v batteries LRGA and 12 volt Ni-Cd rechargeable batteries or KR AA batteries.
- Size and Weight:
- Control pack: (100(ø)x26(d))mm (3.9"x1.0")=105grams and (101 W x 74 D x 71 H )mm(4.0"x2.9"x2.8") = 180grams
- Adapter ring comes in various sizes 49,52,58mm along with a case
- Testing Conditions: The testing peformed on the unit is done at a temperature of 20 degree celsius. The only constraint is the recycling time period as it is only 30 seconds.
- Manufacturer has the right to change any specifications as he sees fit without having to notify anyone.
Frequently Asked Questions
Q: What type of batteries does the AF140C Macro Flash use?
A: The AF140C Macro Flash can use four AA 1.5V alkaline or 1.2V Ni-Cd rechargeable batteries.
Q: What is the guide number for this macro flash?
A: For ISO 100, the maximum light output guide number of this macro flash is 14 which is stated in meters.
Q: Can I use any lens and still have it working?
A: The flash is suitable for use with macro lenses like the Macro 50mm, 100mm, and 200mm that are used in close-up photography. Reversed, wide-angle lenses could also work, but only in this altered position.
Q: How it is performed the function of TTL Auto Flash?
A: TTL Auto Flash feature works based on the distance of the film from the object and the aperture that was selected as well. This feature also controls the exposure of the image, as the distance of the shine to the subject’s image must be in the suitable range afterwards.
Q: What Must I Do When the Flash does not Fire?
A: Check for loose connections, make sure that the power is on, and ensure that the batteries are charged and inserted correctly.
Q: Wht steps should I observe concerning the batteries?
A: As a general rule, for all battery operated devices, one should replace all batteries at once, never mix brands or types, and remove batteries for devices not used regularly to prevent leakage.
User Manual
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