Updated version available here. Version 3.1 is complete. It’s done! Version 3.0 of my AF assist tool is complete. Taking a step back, I should
I think I have a schematic I am happy with to drive either an LED or laser module. The 3.3V from the camera comes from
I decided to take apart the AF module from the 550EX flash mainly to see if I could use my own LED in the AF
Using the same laser pointer as in my previous post AF Assist tool v3.0 – laser pointer trials, I decided to stick a cap from a
Did some more experimenting. The problem I am battling with (one of them at least) is that using the AF module out of the Canon 550EX flash
Light source I just received an AF assist module out of a Canon 550EX. Bought it here on Ebay from seller procamerarepair. The ebay item title
From my last post(AF Assist tool v3.0 – more testing)I discovered that the LEDs I have found are just not cutting the mustard. Today it
The 4 AA batteries that all flashes take is enough for most uses, but if the flash is not easily accessible, or batteries die too
For LED 2X2.5MM SUPER RED CLEAR 1.7V forward voltage, 25mA max current draw @ 9v, need 330 Ohm resistor @ 6v, need 180 Ohm resistor
So I got some parts from DigiKey today; enough to do some more testing. Took out the ebay purchase I’ve had for a few weeks,