I did this recently and today I did it again, while suffering through stomach pain because I don’t know how to eat food anymore.
I put my DSLR onto the tripod, set the ISO to as close as I could get to the new roll of film, zoomed in to a point that is similar to the lens currently on Dad’s camera, used the light meter on my iPhone and set the aperture and shutter speed manually, manually focused while basically laying on the ground (I’m tall), and took a picture.
Then I put the DSLR away and did all of the same steps with Dad’s film camera. Assuming I didn’t mangle the film while struggling to load the camera earlier today, then I have one picture down and 35 to go.
Some day in the distant future I will get this new roll developed and then I will compare the results. the focal length won’t be the same because the lenses don’t match up exactly, and the ISO on the film is 100 and my DSLR only goes down to 200 so really the two pics won’t have much of anything to do with each other… but so what.
I did notice that even with the aperture set the same, the depth of field was massively different. I couldn’t get the guitar and the amp both into focus with Dad’s camera so I focused on the guitar. We’ll see if it comes out… someday.
Also, just to note, I had to move my guitar nook to the other side of my office because of something to do with work that I don’t want to mention. This is how it looks now.