Pentax AF-540FGZ Operating Manual
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Pentax AF-540FGZ Operating Manual

Auto zoom electronic flash unit
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AUTO ZOOM ELECTRONIC
FLASH UNIT
OPERATING MANUAL
Please read this operating manual carefully first for proper use.

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Summary of Contents for Pentax AF-540FGZ

  • Page 1 AUTO ZOOM ELECTRONIC FLASH UNIT OPERATING MANUAL Please read this operating manual carefully first for proper use.
  • Page 2 Thank you for purchasing the PENTAX Auto-flash AF540FGZ. In addition to easy daylight sync photography with TTL auto, the AF540FGZ also allows wireless TTL auto (P-TTL auto) photography and high-speed sync. It is clip-on type flash which enables accurate focus adjustments even in dark locations with built-in AF-assist spotbeam.

  • Page 3: For Safe Use Of Your Flash Unit

    FOR SAFE USE OF YOUR FLASH UNIT Although we have carefully designed this flash unit for safe operation, please be sure to follow precautions given on page 2. WARNING This mark indicates precautions that, if not followed, could result in serious injury to the user. CAUTION This mark indicates precautions that, if not followed, could result in minor or medium injury to the user or damage to the equipment.
  • Page 4 WARNING The flash contains electronic circuits that operate at high voltages. Do not attempt to disassemble the flash unit yourself, as there is danger of an electric shock. If internal parts of the flash unit becomes exposed due to impact, etc., do not touch them as there is danger of an electric shock.

  • Page 5: Precautions For Your Flash Unit

    Do not attach any accessories having the wrong number of electrical contacts for the hot shoe or grip. Otherwise, some functions may not work properly. Pentax will not be held responsible for any accidents or damage, etc. caused due to the use of this product with cameras which are made by companies other than Pentax.

  • Page 6: Cautions Regarding Batteries

    Cautions Regarding Batteries This flash unit uses 4 AA-size alkaline, lithium, or nickel metal hydride batteries. Do not use any other type of battery. The flash unit may not be able to operate correctly or demonstrate sufficient performance, or the flash unit itself may generate heat, depending on the type of batteries used.

  • Page 7: Table Of Contents

    Modeling Flash/Test Flash... 58 Connecting the AF540FGZ with the Extension Cord ... 59 Supported Functions for Pentax Cameras ... 60 Cameras that Support Each Flash Mode... 60 Cameras that Support Each Sync Mode ... 62 Cameras that Support Wireless Mode ... 63 Cameras that Support Slow-Speed-Sync Mode...

  • Page 8: Names Of Parts

    Names of Parts  Bounce angle adjustment  LCD panel  Flash mode button  Select button  Adjustment dial  LCD panel illumination button/ Format button  Zoom button/ Channel button  Test button/ Modeling button/ Ready lamp  Setting switch ...
  • Page 9 >...
  • Page 10  5P Sync socket  External power source socket  Socket cover  Slave sensor  Wide-angle panel  Catchlight panel  Flash head  AF spotbeam emitter  Auto flash sensor "...

  • Page 11: Major Bundled Items

    Major bundled items  Stand Slide the hot shoe bracket into the opening of the stand. You cannot attach the off-camera shoe adapter F to the bundled stand. When attaching the flash unit to the stand, do not tighten the locking lever too far. Tightening too far may cause the locking lever to not lock sufficiently when the flash unit is removed from the stand and attached to the hot shoe of the...

  • Page 12: Lcd Panel Indicator

    LCD Panel Indicator  Zoom indicator : (A.Zoom)  Format indicator : (35mm)  Flash mode indicator : (P-TTL)  Flash exposure : (-3.0 to +1.0 steps, 0.5 step increments) compensation indicator  ISO indicator : ISO 25 to 1600 ...
  • Page 13 When in poorly lit locations and the LCD panel cannot be seen, pressing the LCD panel illumination button (LIGHT) will illuminate the panel for about 10 seconds. Pressing it again will turn off the illumination. The camera's LCD panel lights up also when you press the LCD illumination button (LIGHT) and the exposure metering timer is on for the following camera.

  • Page 14: Inserting The Batteries

    Inserting the Batteries Slide the battery chamber cover as shown in the figure to open. Insert four AA-size batteries, making sure the plus/minus marking (+, -) match the diagram inside the battery chamber cover.

  • Page 15: Using The Optional External Power Source

    TR Power Pack-3. For information on how to recharge the flash unit using the TR Power Pack-3, refer to “Charging the AF540FGZ with the Optional External Power Source” on page 16. The TR Power Pack-2 cannot be used with the AF540FGZ for mechanical reasons.

  • Page 16: Mounting To Camera

    Mounting to Camera Remove the hot shoe cover from the camera. Attach the flash unit to the camera.  Turn the locking lever of the flash unit in the direction opposite to that indicated by (FIX ) (clockwise from the direction of the LCD panel).

  • Page 17: Turning The Power On

    Turning the Power On Sliding the power switch to the (ON) position will turn on the power. The ready lamp will light up when the flash is charged. Sliding it to the (OFF) position will turn off the power. Turn the camera on before turning the flash unit Please refer to page 38 for the WIRELESS MODE position.

  • Page 18: Charging The Af540Fgz With The Optional External Power Source

    Charging the AF540FGZ with the Optional External Power Source Prepare the external power source TR Power Pack-3 in accordance with the instruction in the operating manual. Confirm that the power switch of the flash unit and TR Power Pack-3 is turned to OFF. Then, plug the power cord into the external power socket on the flash unit.

  • Page 19: Auto Power Off Function

    Auto Power Off Function When the flash unit is left unused for about 3 minutes with the power switch set to the (ON) position, it automatically switches off to save the power. Slide the setting switch up. Press the LCD panel illumination button (LIGHT) for 2 seconds or more.

  • Page 20: Select Button (S)/Adjustment Dial Functions

    Select Button (S)/Adjustment Dial Functions 4 types of settings are available as shown on the following pages for the select button (S) and the adjustment dial. Procedure Press the select button (S) so that the number to adjust is blinking. Turn the adjustment dial and adjust the blinking number.
  • Page 21 Flash exposure compensation P-TTL Auto flash ISO / F (aperture) setting Auto flash (A) Manual flash output Manual (M) Wireless (W) master flash (M) Flash output setting Wireless (W) slave flash (S) After adjustment, press the select button (S) and stop the blinking.

  • Page 22: Camera Format And Flash Coverage Angle

    Camera Format and Flash Coverage Angle The AF540FGZ’s flash coverage angle can be adjusted with the auto or manual zoom head to suit the camera’s picture format (35 mm, 645, 67, DIGITAL) and lens focal length. Follow the procedure below.
  • Page 23 Zoom position (Flash coverage angle) setting With the setting switch set to the (white dot), press the zoom button (ZOOM) to set the suitable flash coverage angle matching the lens focal length. The zoom position changes as shown on page 23. ...
  • Page 24 In the manual zoom mode, refer to the LCD panel and set it so the flash coverage angle matches the lens focal length or set a flash coverage angle that is shorter than the lens focal length. Zoom Positions for Each Format 35mm camera 645 camera 20mm*...
  • Page 25 Digital Camera 35mm Camera 645 Camera 67 Camera...
  • Page 26 In the (A.Zoom) mode, the flash coverage angle will be adjusted automatically to suit the lens focal length when you press the shutter release button halfway, and the camera exposure metering timer is on. A warning signal appears as follows when the flash cannot cover the focal length of the camera.

  • Page 27: Using The Flash Modes

    Using the Flash Modes The AF540FGZ has the following flash modes. Select the mode best suited for the subject. Before photographing, confirm the following. 1. Whether your camera supports the desired flash mode. Cameras that Support Each Flash Mode (Page 60) 2.

  • Page 28: P-Ttl Auto Flash

    P-TTL Auto Flash Effective flash range Refer to page 25 for the features and conditions of use of this flash mode. Procedure Turn on the flash unit. Press the flash mode button (MODE) until (P-TTL) is displayed on the LCD panel. Set the sync mode switch to leading curtain sync ), trailing curtain sync ( contrast-control (...

  • Page 29: Ttl Auto Flash

    TTL Auto Flash Refer to page 25 for the features and conditions of use of this flash mode. Procedure Turn on the flash unit. Press the flash mode button (MODE) until (TTL) is displayed on the LCD panel. Set the sync mode switch to leading curtain sync ), trailing curtain sync ( contrast-control ( subject.

  • Page 30: Auto Flash

    Auto Flash Refer to page 25 for the features and conditions of use of this flash mode.
  • Page 31 Procedure Turn on the power switch. Press the flash mode button (MODE) until (A) is displayed on the LCD panel. Set the aperture value and ISO.  Press the select button (S) so that (f/stop) on the LCD panel blinks. ...

  • Page 32: Manual Flash

    Example: If the flash zoom position is 50mm, subject distance (between the AF540FGZ and subject) is 4 m, and sensitivity is ISO 100, the calculation will be as follows: With flash output (1/1), the Guide No. will be 45 (according to the Guide No.
  • Page 33 Confirm that the subject is within the effective flash range and the ready lamp is lit. Then take a picture. In the following cameras, if the correct flash output is obtained, the flash mode indicator and ( ) in the viewfinder will blink. 645, LX, MZ-M/ZX-M For details, refer to “Auto Check Display”...

  • Page 34: Using The Sync Mode

    Using the Sync Mode The AF540FGZ has the following sync modes. Select the mode best suited for the subject. Before photographing, confirm the following. 1. Whether your camera supports the desired sync mode. Cameras that Support Each Sync Mode (Page 62) 2.

  • Page 35: Leading Curtain Sync Mode

    Leading Curtain Sync Mode Refer to page 32 for the features and conditions of use of this sync mode. Procedure Set the power switch to the (ON) position. Set the sync mode switch to leading curtain sync Confirm that the subject is within the effective flash range and the ready lamp is lit.

  • Page 36: High-Speed Sync Mode

    High-Speed Sync Mode Refer to page 32 for the features and conditions of use of this sync mode. As can be seen in the table on page 84, as the shutter speed becomes faster, the guide number becomes smaller. Accordingly, it should be noted that the distance for taking pictures would become shorter.
  • Page 37 Check the flash range by looking at the bar graph on the LCD panel. Confirm that the subject is within the effective flash range and the ready lamp is lit. Then take a picture. Please read the camera operating manual for camera operation.

  • Page 38: Contrast Control Sync Flash

    Set the zoom position. (The setting method differs according to your camera and lens. Refer to page 21.) If the AF540FGZ is much closer to the subject than the flash unit to be used in combination, use (M.Zoom) to set the zoom position to a shorter lens focal length.
  • Page 39 With a single flash With contrast control sync flash If you are using a single flash unit, you can only perform leading curtain sync photography when the sync mode switch is set to contrast-control...

  • Page 40: Advanced Functions

    Advanced Functions Wireless Mode With the AF540FGZ, you can take photographs with the flash unit separated from the camera wirelessly in P-TTL mode. Combine the flash unit with the built-in flash unit of the camera or another AF540FGZ attached to the camera.
  • Page 41 F when using a tripod, or the off-camera shoe clip CL-10 when setting up in another location such as tabletop, chair, etc. Keep the distance from the built-in flash unit and AF540FGZ to the subject within 4 meters.
  • Page 42 Using the AF540FGZ in Combination with a Built-in Flash Unit Setting switch The AF540FGZ can be used in combination with a built-in flash unit only when used with the following cameras. *ist D, *ist, MZ-S, MZ-L/ZX-L/MZ-6...
  • Page 43 Firstly, set the wireless mode and channel of the AF540FGZ, and register them on the camera.  Turn the camera off and then attach the AF540FGZ to the hot shoe of the camera.  Set the power switch of the flash unit to (WIRELESS).
  • Page 44 When Attaching the AF540FGZ to the Camera for Control Flash Control flash only: not used for main flash (Preparation of Flash Unit Attached to Camera) Firstly, set the wireless mode and channel of the flash unit attached to the camera, and register them on the camera.
  • Page 45 Next, set the channel of the separated (wireless) flash unit to the same channel as the flash unit attached to the camera.  Place the other AF540FGZ in the desired position.  Set the power switch of the flash unit to (WIRELESS).
  • Page 46 When Using Both an AF540FGZ Attached to the Camera and a Separated Flash Unit as Main Flashes Use both flash units as main flashes (Preparation of Flash Unit Attached to Camera) Firstly, set the wireless mode and channel of the flash unit attached to the camera, and register them on the camera.
  • Page 47 Next, set the channel of the separated (wireless) flash unit to the same channel as the flash unit attached to the camera.  Place the other AF540FGZ in the desired position.  Set the power switch of the flash unit to (WIRELESS).
  • Page 48 Firstly, set the wireless mode and channel of the AF540FGZ, and register them on the camera.  Turn the camera off and then attach the AF540FGZ to the hot shoe of the camera.  Set the power switch of the flash unit to (WIRELESS).
  • Page 49 P-TTL mode, and when it is faster than X- sync speed, the flash will be set to high-speed sync mode. Confirm that the AF540FGZ and built-in flash unit are fully charged, and take the photograph. A lamp on the wireless flash unit will blink.
  • Page 50  Turn the camera off and then attach the AF540FGZ to the hot shoe of the camera.  Set the power switch of the flash unit to (WIRELESS).
  • Page 51 Next, set the channel of the separated (wireless) flash unit to the same channel as the flash unit attached to the camera.  Place the other AF540FGZ in the desired position.  Set the power switch of the flash unit to (WIRELESS).

  • Page 52: Slave

    Slave With the AF540FGZ, you can take photographs with the flash unit separated from the camera wirelessly in auto or manual mode. Combine the flash unit with the built-in flash unit of the camera or another flash unit attached to the camera.
  • Page 53 Position the slave unit(s) so that the slave sensor can receive the flash fired by the camera’s built-in flash unit or attached flash unit. The AF540FGZ will fire at the same time that the camera’s flash fires. Keep the distance from the built-in flash unit and AF540FGZ to the subject within 4 meters.

  • Page 54: Slave Mode Setting

    Slave Mode Setting To properly control the slave flash, it is necessary to set the slave mode settings. 2 seconds or more Procedure Slide the setting switch up. Press the LCD panel illumination button (LIGHT) for 2 seconds or more. SL1 will be displayed. Press the select button (S) to select SL 1 or SL 2.

  • Page 55: Slow-Speed-Sync Photography

    Slow-Speed-Sync Photography When using a normal flash to photograph a subject in a night or evening setting, the background will appear very dark because a normal flash light cannot sufficiently light it. However, it is possible to balance both subject and background by using the flash to properly expose the foreground subject and a slow shutter speed to expose the low light background.

  • Page 56: Bounce Flash

    Bounce Flash With the AF540FGZ, you can tilt and swivel the flash head to aim at the ceiling or wall to bounce the flash before it reaches the subject. Doing so creates softer light and shadows to make the picture look more natural.
  • Page 57 A click stop is provided for each bounce angle. Hold the bounce lock release button and tilt the flash head downward when you set the bounce angle at -10 ° When using bounce flash, ( on the LCD panel. The effective flash range will blink only when the bounce angle is set at -10 °...

  • Page 58: Af Spotbeam

    This function is activated only when the camera is set to autofocus. By setting the flash mode to (SB), the AF540FGZ can be used exclusively as a focusing aid in dim light. Using the AF540FGZ Spotbeam Exclusively as a Focusing Aid 1.Set the power switch to the (ON) position.

  • Page 59: Wide-Angle Panel And Catchlight Panel

    Wide-Angle Panel and Catchlight Panel The AF540FGZ has a built-in wide-angle panel and catchlight panel at the top of the flash head. Execute the following if necessary. Pull out both the wide-angle panel and catchlight panel. Store the panel you are not using.

  • Page 60: Modeling Flash/Test Flash

    Function Chart" in the camera's operating manual.) *ist: You can use the flash pop-up button. (Refer to "Setting the Custom Function" in the camera's operating manual.) MZ-S: You can use the LCD illuminator button. (Refer to "Pentax Functions" in the camera's operating manual.)

  • Page 61: Connecting The Af540Fgz With The Extension Cord

    Connecting the AF540FGZ with the Extension Cord When using the AF540FGZ separately from the camera connected by an extension cord, use the optional extension cord F5P. Attach the extension cord F5P to the camera using the optional hot shoe adapter or the optional hot shoe adapter F (refer to the diagram on the right).

  • Page 62: Supported Functions For Pentax Cameras

    Supported Functions for Pentax Cameras Cameras that Support Each Flash Mode Cameras that support each of the flash modes are listed below. Please note that functions related to each flash mode differ. Refer to "Functions Related to Each Flash Mode" (page 64 - 71).
  • Page 63 /SF1 SFX/SF1 645, Super A/ Super Program, LX Auto Flash (A) Aperture setting capable Pentax single lens reflex cameras Manual Flash Aperture setting capable Pentax single lens reflex cameras - In trailing curtain sync or contrast control sync mode, the flash mode will automatically be switched to (TTL) when you press the shutter release button halfway down, even if you have set it to manual (M).

  • Page 64: Cameras That Support Each Sync Mode

    Please note that the conditions under which they can be used differ depending on camera type and settings. For details, refer to the restrictions reference pages. Sync Mode Leading curtain sync ( ) All Pentax single lens reflex cameras provided with a hot shoe Trailing curtain sync ( Digital single lens reflex cameras...

  • Page 65: Cameras That Support Wireless Mode

    Cameras that Support Wireless Mode Function Wireless Mode Digital single lens reflex cameras Film cameras (35mm autofocus single lens reflex cameras) You can use the slave flash instead, if your camera does not support wireless mode. In this case, the available flash modes are auto and manual (page 50).

  • Page 66: Cameras That Support Slow-Speed-Sync Mode

    Cameras that Support Slow-Speed-Sync Mode Function Slow- Digital single lens reflex speed-sync cameras Film cameras (35mm autofocus single lens reflex cameras) Film cameras (medium format) Film cameras (35mm manual focus single lens reflex cameras) Functions Related to Each Flash Mode Supported flash modes and sync modes differ for each camera model.
  • Page 67 In type A cameras, if you set the aperture of the lens to a setting other than (A), the flash mode will switch to TTL auto. *: The AF540FGZ can be used in combination with a built-in flash unit only when used with the following cameras. *ist D, *ist, MZ-S, MZ-L/ZX-L/MZ-6...
  • Page 68 Red-eye reduction AF spotbeam : Only when combined with cameras provided with red-eye reduction. : Only when the AF540FGZ is detached from the camera and connected by an extension cord. , MZ-30/ZX-30, MZ-7/ZX-7, Z-1/PZ-1, Z-5, Z-1P/PZ-1P, Z-5P, Z-20/PZ-20, /SF1 (TTL) TTL auto...
  • Page 69 <Film cameras (medium format)> Type D: 672 Type E: 645 N2, 645 N Type F: 645 (P-TTL) P-TTL auto Flash Mode flash photography Camera type (D), (E), (F) Leading curtain sync Trailing curtain sync Slow-speed-sync High-speed sync Automatic switching to X-sync speed when flash is charged Flash ready display...
  • Page 70 <Film cameras (35mm manual focus single lens reflex cameras)> Type G: LX Type H: Super A/Super Program (P-TTL) P-TTL auto Flash Mode flash photography Camera type (G), (H) Leading curtain sync Trailing curtain sync Slow-speed-sync High-speed sync Automatic switching to X-sync speed when flash is charged Flash ready display in...
  • Page 71 3. Cameras that Does not Support P-TTL and TTL Auto Flash Mode <Film cameras (35mm autofocus single lens reflex cameras)> Type A: SF7/SF10 (P-TTL) P-TTL auto Flash Mode flash photography Camera type Leading curtain sync Trailing curtain sync Slow-speed-sync High-speed sync Automatic switching to X-sync speed when flash is charged...
  • Page 72 <Film cameras (35mm manual focus single lens reflex camera, 67 camera)> Type B: MZ-M/ZX-M Type C: P30T, P30N/P3N, P30, P50/P5, A3Date, A3DateS, Program A/Program Plus Type D: ME, ME-Super, MG, ME-F/MEF, MV1/MV (P-TTL) P-TTL auto Flash Mode flash photography Camera type (B), (C), (D) Leading curtain sync Trailing curtain sync...
  • Page 73 Type E: 35mm single reflex cameras other than those in Type A to D, 67 camera (P-TTL) P-TTL auto Flash Mode flash photography Camera type Leading curtain sync Trailing curtain sync Slow-speed-sync High-speed sync Automatic switching to X-sync speed when flash is charged Flash ready display in viewfinder...

  • Page 74: Sync Mode Restrictions

    Sync Mode Restrictions Leading Curtain Sync Photography ( This sync mode can be used with all Pentax single lens reflex cameras provided with a hot shoe. However, there are restrictions depending on camera type and settings. Camera Model Z-1/PZ-1, Z-5, Z-1P/PZ-1P,...
  • Page 75 (information is displayed in the viewfinder). The built-in flash units of the following cameras do not have the trailing curtain sync function. When used in combination with the AF540FGZ, the built-in flash unit does not fire - only the external flash unit fires. SFX/SF1, SFX...
  • Page 76 However, the flash modes, cameras, and camera shutter speeds that can be used differ depending on the flash unit. Set the shutter speed to the speed shown in the shutter speed column below. Flash Unit AF540FGZ, AF360FGZ, P-TTL auto flash built-in flash units...
  • Page 77 Camera Category Film cameras (medium 645N2, 645N format) Film cameras (35mm Z-1/PZ-1, Z-1P/PZ-1P, Z-5, Z-5P autofocus single lens reflex cameras) Z-10/PZ-10 SF10 All 35mm autofocus single lens reflex cameras other than above *1: The minimum shutter speed varies depending on the focal length of the lens you are using. *2: The minimum shutter speed varies depending on ambient light.
  • Page 78 High-Speed-Sync Mode Photography ( Cameras that support this sync mode are as follows. Be sure to set your camera according to the following settings: - Shutter speed: faster than flash unit's X-sync speed - Exposure mode: Tv (Shutter Priority), Av (Aperture Priority), M (manual) Exposure modes other than the above are not compatible with this sync mode.
  • Page 79 Slow-Speed-Sync Photography Restrictions Be sure to set the camera as follows. - Shutter speed: slower than flash unit's X-sync speed - Exposure mode: manual exposure, Shutter Priority AE, (except 645, SFX (Bulb Exposure) Exposure modes other than the above are not compatible with this photographic method. Refer to the Exposure Modes Not Supported by Slow-Speed-Sync Photography column.
  • Page 80 Camera Model MZ-S, MZ-5 /ZX-5 , MZ-3, P (Programmed AE) and Av (Aperture MZ-5/ZX-5, MZ-M/ZX-M, Priority) modes Z-50P, Program A/ Program Plus MZ-50/ZX-50 PICT and Av (Aperture Priority) modes MZ-30/ZX-30 modes MZ-10/ZX-10 Auto picture, PICT, and Av (Aperture Priority) modes Z-1P/PZ-1P, Z-5P, Z-5, HyP (Hyper Program), Programmed AE Z-1/PZ-1...

  • Page 81: Precautions When Photographing With A Slave Flash

    Precautions When Photographing with a Slave Flash Be sure to set the camera as follows: - Exposure mode: M (manual) or B (Bulb Exposure) * Exposure modes other than those above are not compatible with this photographic method. Set the slave mode of the flash unit to SL 2 (refer to page 52).

  • Page 82: Flash Effective Range

    Flash Effective Range Calculating the Flash Effective Range When setting the lens to manual f/stop, calculate the guide number at full flash with the use of flash's zoom position and ISO. Divide the resulting guide number by the aperture in use. Thus, the maximum distance is obtained.
  • Page 83 Display of Flash Effective Range The shooting distance parameters will be displayed on the LCD panel. Make sure that you are within the flash effective range before taking pictures. The effective flash range is displayed for the following camera and lens combinations. Camera DA, D FA, FA J, FA, F, *ist D series...

  • Page 84: Guide Number (Gn)

    Guide Number (GN) Guide numbers indicate flash light intensity. The larger the number, the farther you can reach with your flash. From the guide number, you can easily obtain the proper aperture setting required for an optimum exposure. Aperture (f/stop) = GN/flash-to-subject distance (m) Guide Number Table Camera format...
  • Page 85 Camera format Flash 35mm light intensity DIGITAL ISO200 1/16 1/32 1/64 ISO400 1/16 1/32 1/64 Zoom position 85mm 70mm 50mm 35mm 150mm 135mm 100mm 70mm 190mm 180mm 120mm 90mm 58mm 48mm 34mm 24mm 27.5 24.5 22.5 19.5 13.5 13.5 27.5 24.5 22.5 19.5...
  • Page 86 High-Speed Sync Guide Number Camera format Shutter 35mm speed DIGITAL 1000 ISO100 2000 4000 6000 1000 ISO200 2000 4000 6000 1000 ISO400 2000 4000 6000 Zoom position 85mm 70mm 50mm 35mm 58mm 48mm 34mm 24mm 24.2 22.4 20.1 17.5 18.8 17.4 15.6 13.6...

  • Page 87: P-Ttl And Ttl Auto Flash Effective Range

    P-TTL and TTL Auto Flash Effective Range Camera format 35mm 20mm 24mm 28mm 35mm 45mm 55mm 55mm 60mm 70mm DIGITAL 13mm 16mm 19mm f/1.2 1.8 - 17.5 2.6 - 26.6 2.9 - 29.1 3.3 - 32.5 3.7 - 37.0 4.2 - 41.6 4.5 - 45.0 2.5 - 25.0 3.8 - 37.5 4.1 - 40.8 4.6 - 45.8 5.4 - 53.3 6.0 - 59.1 6.4 - 63.3 f/1.4 1.5 - 15.0 2.3 - 22.8 2.5 - 25.0 2.8 - 27.8 3.2 - 32.0 3.6 - 35.7 3.9 - 38.5 2.2 - 21.4 3.3 - 32.1 3.5 - 35.0 4.0 - 39.2 4.6 - 45.7 5.1 - 50.7 5.5 - 54.2 1.1 - 10.5 1.6 - 16.0 1.8 - 17.5 2.0 - 19.5 2.3 - 22.5 2.5 - 25.0 2.7 - 27.0 1.5 - 15.0 2.3 - 22.5 2.5 - 24.5 2.8 - 27.5 3.2 - 32.0 3.6 - 35.5 3.8 - 38.0...
  • Page 88 Zoom position Camera format 35mm 20mm 24mm 28mm 35mm 45mm 55mm 55mm 60mm 70mm DIGITAL 13mm 16mm 19mm f/1.2 3.5 - 35.0 5.4 - 53.3 5.9 - 58.3 6.5 - 65.0 7.5 - 75.0 8.4 - 83.3 9.0 - 90.0 f/1.4 3.0 - 30.0 4.6 - 45.7 5.0 - 50.0 5.6 - 55.7 6.5 - 64.2 7.2 - 71.4 7.8 - 77.1 2.1 - 21.0 3.2 - 32.0 3.5 - 35.0 3.9 - 39.0 4.5 - 45.0 5.0 - 50.0 5.4 - 54.0...

  • Page 89: Optional Accessories

    TR Power Pack-3 (Upcoming product) External power source which supplies power from six C-size batteries. Off-camera Shoe Clip CL-10 Setting clip for using the AF540FGZ as a wireless slave flash. Hot Shoe Adapter F Adapter for using the AF540FGZ as a separate flash unit using the extension cord F5P.

  • Page 90: Specifications

    Specifications Type Clip-on, TTL auto zoom flash unit with serial control Guide No. Maximum 54 (ISO 100/m). In manual mode, seven-step adjustment from M1/1 to M1/64. The focal lengths in the table below are for 35 mm single lens reflex cameras. (when using 35mm format camera) (ISO 100) (ISO 200)
  • Page 91 Approx. 0.8 m - 8.0 m (Guide No. 45, ISO 100, f/5.6) AF spotbeam Red beam emitted under low light or low-contrast conditions. Effective range: Approx. 1 m - 7 m (According to Pentax’s testing conditions.) Film speed setting ISO 25 - 1600...
  • Page 92 (Channels) 1 to 4 Compatible modes: P-TTL, auto (A), manual (M) Effective range: Approx. 4 m (When set to SL 1. According to Pentax testing conditions.) Bounce flash Vertical and horizontal bounce possible, click stops provided, lock provided at 0°.

  • Page 93: Warranty Policy

    If the equipment is not covered by warranty, regular charges of the manufacturer or of its representatives will apply. Shipping charges are to be borne by the owner. If your Pentax was purchased outside of the country where you wish to have it serviced during the warranty period, regular handling and servicing fees may be charged by the manufacturer’s...
  • Page 94 Therefore, we recommend that you review the warranty card supplied with your product at the time of purchase, or contact the PENTAX distributor in your country for more information and to receive a copy of the warranty policy. For customers in the USA STATEMENT OF FCC COMPLIANCE This device complies with Part 15 of the FCC Rules.
  • Page 95 Information on disposal for users 1. In the European Union If your product is marked with this symbol, it means that used electrical/electronic products should not be mixed with general household waste. There exists a separate collection system for these products. Used electric/electronic equipment must be treated separately and in accordance with legislation that requires proper treatment, recovery and recycling of these products.
  • Page 96 (http://www.pentax.co.jp/) Julius-Vosseler-Strasse, 104, 22527 Hamburg, GERMANY (HQ - http://www.pentaxeurope.com) (Germany - http://www.pentax.de) Pentax House, Heron Drive, Langley, Slough, Berks SL3 8PN, U.K. (http://www.pentax.co.uk) 112 Quai de Bezons, B.P.204, 95106 Argenteuil Cedex, FRANCE (http://www.pentax.fr) Widenholzstrasse 1 Postfach 367 8305 Dietlikon, SWITZERLAND (http://www.pentax.ch)

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