Over the years that I've been here at RFf, there has been some discussion about sourcing JIS screwdrivers for those seemingly Phillips head screw on our old cameras.
They are not super tough to find but I have another place to get them:
the Ifixit tool kits. I bought an Ifixit Pro Tech kit for about $60.
I have been doing some upgrading of my laptop and am going to be building a desktop pc soon so I decided to get some dedicated tools.
I'm pretty happy with the kit and included in it are four different JIS bits:
J000, J00, J0, and J1.
If all you need are the JIS bits or drivers, Moody Tools is probably a better option but if you also want the other small bits--phillips, slotted, torx, etc--this kit is worth the $60, I think. Ifixit also have kits that are just the bits and a handle for $25-ish if you don't need the electronic repair stuff.
You can't depend on your eyes when your imagination is out of focus.