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V1 Drop3 Size

Numeric value 
between 000 and 
999

The number of milliseconds that the valve will be 
open to release the third drop. 

Flash Delay

Numeric value 
between 000 and 
999

The number of milliseconds to wait after the 
second drop to trigger the flash.

 
The following settings are only useful for advanced users with 2 valve sensors.  The second valve 
sensor should be plugged into the Sensor2 port.
 

Parameter

Options

Description

V2 Start Offset

Numeric value 
between 000 and 
999

The number of milliseconds from when the first 
valve start to when the second valve starts.  If 
you want the drops at the same time set this to 
0.

V2 Drop1 Size

Numeric value 
between 000 and 
999

The number of milliseconds that the valve will be 
open to release a drop.

V2 Drop2 Delay

Numeric value 
between 000 and 
999

The number of milliseconds after the first drop to 
start the second drop.

V2 Drop2 Size

Numeric value 
between 000 and 
999

The number of milliseconds that the valve will be 
open to release the second drop.

 
 
The following settings are useful for users who want to take automatically take a series of shots that 
demonstrate what is happening over time.  One use of photos taken in this mode would be to make a 
movie of what happens to the droplet over time.
 

Parameter

Options

Description

Flash Delay Auto 
Inc

Numeric value 
between 00 and 99

The number of milliseconds to automatically 
increase the flash delay between each shot.  
Each time you press Activate the valve will be 
activated and the “Flash Delay” menu setting 
above will be updated with a new value if this 
is non-zero.  This can also be used with the 
settings below.

Содержание 5

Страница 1: ...Camera Axe 5 User Manual Document Version 5 3 1 July 21 2012 Authors Maurice Ribble and Andrew Morgan ...

Страница 2: ...lash Ports Sensor Ports USB Port Menus Enabling or Disabling Menus Advanced Sensor Menu Projectile Menu Valve Menu Intervalometer Menu General Settings Menu Other Menus Gravity Menu IR Remote Menu Stacker Menu Panorama Menu Jog Menu Sensors Light Sensor Laser Sensor Microphone Sensor Projectile Sensor Valve Sensor Photogate Sensor Motion Distance Sensor Camera Shutter Sync Sensor Clip Sensor Multi...

Страница 3: ... 5 Use the USB cable to upgrade the firmware It also comes with a custom designed enclosure The extra third LED on this board is used to indicate if power is being provided from the USB cable The Camera Axe 5 Shield is a kit that must be soldered together The user must supply an Arduino Uno or compatible development board and a way to power the device Since this version gets it s power from the Ar...

Страница 4: ...tions below The activate button will also turn off the display to save power when in the photo mode if the display is set to turn off in 10 seconds If the Activate button is depressed during the startup process the unit will be reset to the factory default values Select Button The select button toggles the edit mode on and off When in edit mode the value of individual parameters can be adjusted us...

Страница 5: ...are active The focus line can also mean that the camera is being kept in in a ready state if auto focus has been disabled which will give a shorter shutter lag on most cameras Camera Flash Ports Two of the 3 5 mm jacks on the side of the Camera Axe are camera flash ports These ports are labeled Camera Flash 1 and Camera Flash 2 These ports are used to connect either a camera or flash to be trigger...

Страница 6: ...r values Depending on the menu function there various ways the middle sensor pin works analogRead This returns an analog value between 0 and 1023 proportional to the sensor voltage of 0 to 5 volts The Camera Axe displays values from 0 to 999 This is the slower way to read the sensor value still quite fast at 20 microseconds but it provides the ability to read the range of values from the sensor Th...

Страница 7: ... and arrow buttons allow the user to navigate to the different parameters to set up the menu functions Advanced Sensor Menu Device1 Device2 Trig Sen Sensor1 None Delay ms 000 0 000 0 Bulb sec 002 0 002 0 Prefocus No No Sensor1 Sensor2 Trig Typ High High Trig Val 700 500 700 Power On On Advanced Sensor Menu Values highlighted in black are modifiable The top area of the menu sets the device settings...

Страница 8: ... triggered The setting of None will turn off triggering of that device Delay ms Numeric value between 000 0 and 999 9 This is the number of millisecond delay between when the sensor is triggered and the device will fire Using the Select and Arrow buttons allows changing one of the four numeric values at a time until the desired delay is set Bulb sec Numeric value between 000 0 and 999 9 The number...

Страница 9: ...lue read by sensor The current sensor value which is displayed to the right of this value is updated every 500 ms When set to a trigger type of Threshld the updating value is the difference between the high and low sensor readings during that sampling period If trigger type is set to digial then this will dislay Hi or Low instead of a number Power On Off_Dev1 Off_Dev2 This setting allows the senso...

Страница 10: ...or has high values when nothing is between the sensors so this should be set to a value of Low when using the projectile sensor described below Distance Units Inch Cm Set to determine whether the user provided distance is in inches or centimeters The distance is measured from Sensor 2 to where you want the projectile when the flash fires See the section below for more details and example of how to...

Страница 11: ...e valve sensor should be plugged into the Sensor1 port Parameter Options Description V1 Drop1 Size Numeric value between 000 and 999 The number of milliseconds that the valve will be open to release a drop V1 Drop2 Delay Numeric value between 000 and 999 The number of milliseconds after the first drop to start the second drop V1 Drop2 Size Numeric value between 000 and 999 The number of millisecon...

Страница 12: ...he valve will be open to release a drop V2 Drop2 Delay Numeric value between 000 and 999 The number of milliseconds after the first drop to start the second drop V2 Drop2 Size Numeric value between 000 and 999 The number of milliseconds that the valve will be open to release the second drop The following settings are useful for users who want to take automatically take a series of shots that demon...

Страница 13: ...n Number of Shots if this is 2 the total number of shots will the 3 times the setting in Number of Shots To use this menu plug the valve sensor into Sensor 1 and Sensor 2 if your using two valves Plug an external flash into Camera Flash 2 and plug the camera into Camera Flash 1 camera cable is optional since you could trigger that manually with a long exposure See the section below on the valve se...

Страница 14: ...of 2 will take three shots during each interval The HDR is accomplished by doubling the bulb time for each shot see the example below For this mode to work your camera must be in bulb mode Mirror Lockup Yes No This adds another shutter trigger for each shot To use this your camera must support mirror lockup and have that setting enabled The camera is triggered to raise the mirror and then two seco...

Страница 15: ...onds pressing the Activate button to enter photo mode will also turn off the backlight The backlight is the largest contributing factor to power usage on the Camera Axe so turning it off greatly extends battery life General Settings v5 3 Backlight On Startup Mode Menu Preset Group Preset_1 General Settings Menu Values highlighted in black are modifiable This menu lets you control the startup mode ...

Страница 16: ...t mode of the camera but it might be worth checking to see if yours does There are videos on TechPhotoBlog com that show how the shutter lag on a camera or you try an internet search to see if someone else has found the shutter lag for your camera Using shutter lag in this menu requires that the time from the object passing through the sensor to when it hits the ground is greater than the shutter ...

Страница 17: ...nch of different planes so that software can then merge these photos together into a single photo with a greater depth of field then would be possible even with a very small aperture Stacker Menu Motor Location SENSOR 1 Photo Stack 01 Motor Direction FORWARD Distance Units Inches Steps Units 0025 Total Distance 5 000 Settle Time ms 1000 Speed Steps Sec 0100 Stacker Menu Values highlighted in black...

Страница 18: ...the 5 0 software the sensor pins float instead of using the internal pull up resistors in the Atmel chip This basically means that if nothing is plugged into a sensor port the values will not be valid and will change sporadically If this is a problem the internal pull up resistors can be enabled by un commenting the following two lines in cameraAxe_helperFuncs c digitalWrite SENSOR1_PIN HIGH digit...

Страница 19: ...pe Threshld Low Trigger Value 010 000 Power On On Sensor Settings The camera should be set to take a picture using aperture priority to allow the shutter speed to vary as the daylight dims or you may choose to set up the camera for the shot in manual mode These Camera Axe settings will trigger a shot each time the daylight dims by 10 units on the light sensor The camera will be triggered with no d...

Страница 20: ...o the Camera Flash 2 port The light sensor is plugged into the Sensor 1 port and the laser is plugged into the Sensor 2 port Parameter Device 1 Device 2 Trigger Sensor Sensor1 Sensor1 Delay ms 000 0 000 2 Bulb sec 01 00 Prefocus No No Device Settings Parameter Sensor1 Sensor2 Trigger Type Low Low Trigger Value 100 000 Power Off_Sen2 On Sensor Settings The camera should be set to manual mode and th...

Страница 21: ...his up In this case the settings for Device1 and Sensor2 are configured according to the table below Device2 should have the Trigger Sensor set to None and Sensor2 will be ignored Parameter Device 1 Device 2 Trigger Sensor Sensor2 None Delay ms 500 0 000 0 Bulb sec 01 00 Prefocus No No Device Settings Parameter Sensor1 Sensor2 Trigger Type Low Low Trigger Value 400 000 Power On On Sensor Settings ...

Страница 22: ... detecting the first sensor and the second sensor without the second sensor being triggered a message will be displayed that says Sensor2 did not trigger and then after 5 seconds the unit will return to waiting for a projectile NOTE This sensor and menu are designed to work with projectiles with a nearly constant velocity such as bullets or pellets The sensor and menu can be used for objects falli...

Страница 23: ...s in the valve menu For more detail on using the Camera Axe with the valve sensor and this example see the tutorial at http www techphotoblog com tpb 39 Photogate Sensor This photogate sensor which plugs into either of the Sensor ports on the Camera Axe detects when something passes through the gate Great for detecting well aimed bullets water droplets or anything that can pass through the 0 4 inc...

Страница 24: ...loses end curtain sync Read your camera manual for more details on what options are available on your camera Clip Sensor This Clip sensor which plugs into either of the sensor ports on the Camera Axe is a generic sensor for people who want to make their sensor This sensor can trigger the Camera Axe when the conductivity between the clips changes Examples of how this could be used would be to add a...

Страница 25: ... Camera Flash ports and replicates that signal to up to 4 more devices Normally that would be 4 flashes but it could be 4 cameras Each device is isolated from the other devices so it is safe to use this with devices that have different trigger voltages End of Document ...

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