Nikon S2. Some questions...

Hey all. Here's my new Nikon S2 Rangefinder that I just came across.

Here are some pictures.

Imgur: The magic of the Internet

I'm slowly familiarizing myself with film, it's completely new to me. I have one question about adjusting the Depth of Field on the lens. How that works and how it relates to the aperture / shutter speed that I set.

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And if anyone has any good resources / crash course type stuff that helped them out, I'd appreciate it.

Thanks!