AF assist v2
I built a controller for the laser pointer (so it would be controlled by the camera’s hot show) as per the directions given on this post on fred miranda forums. The OpAmp I used was two LM741. However as I found out after I built the setup, the LM741 needs over 10V to power it, which is why I was having no success with that build.
My power source is 3AAA batteries (4.5V).
After some searching , I bought some LM358 op-amps, which will run on any voltaqge between 3-30V which should run just fine on 4.5V. Also, there are two op-amps in each 8pin chip, so I can make the board smaller.
I also bought a few NE5523 op-amps (which have the same pinout as the LM358) just so I have another option.
Below is a schematic of what I will be building later today: