DOF question. Making it happen.

[Geaux]

http://camerasim.com/camera-simulator.html

Camera simulator. Have fun

 

[KmH]

Also, on the actual lens of my camera are a few numbers and what I know to be the infinite symbol. When and why would I apply these adjustments?

That is the focal length.. I would go read about how a DSLR works, investigate focal length, exposure triangle, and general DSLR use.

To make a correction: The numbers that have the ∞ symbol are focus point distances, not focal length.

I recommend you read, and work to understand, the information in your camera and lens user's manuals.

 

[889Media]

To make a correction: The numbers that have the ∞ symbol are focus point distances, not focal length.

...as I already pointed out!