u/Finchypoo

I have recently gotten into wide angle lenses for my rangefinder and I want to play around with some really deep depth of field photography. Since I don't have similarly wide angle lenses for any SLR, and of course there is no DOF preview on a rangefinder I was hoping there are some great tools, or just writeups on how to handle deeper DOF.

I think I know the basic concept of it, I can shoot at a smaller aperture, focus to where the aperture I'm using's marker on the DOF scale is on Infinity, and everything from infinity to the corresponding mark on the other side of the DOF scale is in focus. I've tried it and it's not always worked and I've gotten out of focus backgrounds, or foreground objects still out of focus that I should should be within the range. Just looking for a resource to really nail this so I'm not always having to think about it when I'm out.

I'm working on a project to add a light meter to an old manual camera. I am very new to all of this, no real hardware or software backgrounds outside of consolizing arcade boards and working on music gear. So I am starting from SCRATCH here and just want to see if the community thinks I'm on the right path.

The Project:
Adding a ttl light meter to a vintage camera to display aperture & shutter speeds as well as frame lines inside the camera's original viewfinder.

Requirements:

• Compact, I want to fit this into the existing camera body with minimal 3D printed additions to house both board and battery.
• Low power, mostly to be able to use the smallest batteries possible, but also to not have to charge or change batteries often, auto-off and wake on push would be ideal compared to an on/off switch.
• Needs to support one photoresistor or other light measuring component with tweakable sensitivity levels.
• Support for a couple buttons, ideally AE-lock, cycle framelines and some form of +/- to change ISO and screen brightness.
• Run a small, 0.32" 64x32 OLED screen.

Is this the sort of thing I should look into using an arduino Nano for? I don't need any kind of wireless communication; power saving is probably the biggest requirement.

Thank you!