Printing at actual size

[unpopular]

I have an idea for a project, to take found objects and print them on a white background at actual size. I was wondering if anyone had any ideas about how to do this without measuring the object?

The equipment I plan to use is either a 75mm or 50mm lens mounted on bellows. I also know that there is a formula for calculating magnification (Lens Magnification and Depth of Field Calculator) . But i'm a bit confused as to how to put the two together.

 

[unpopular]

you know. a scale would be easier. Nevermind.

 

[480sparky]

Didn't Andy Warhol do that with a can of Campbell's soup?

 

[unpopular]

All the soup cans I've seen were huge or repeating? Right? Besides, I'm thinking gum wrappers, receipts, grocery lists... Warhol was more interested in media saturation and cultural icons. This is more about context.

 

[Fender5388]

i think that would be awesome, itd be cool as an installation in a room, and replace the actual objects with the photos, im talking like tables and chairs too even
sorry though not sure about your actual question

 

[The_Traveler]

you know. a scale would be easier. Nevermind.

very much easier.
Just include a scale in the field

 

[Kerbouchard]

I was thinking about this off and on this since you posted this thread, and I'm still not sure there is any way to do it without measuring the object.

I guess, technically, you could measure the distance to your subject, use the focal length, calculate how much of the frame it fills up, take into account focus breathing, etc, etc, but that seems like a lot more effort than just measuring the height of the object and then using Photoshop to resample your photo for the desired print height.