Large Format 4x5" Camera using phone to capture the photo/video No film negative required

You also need to have:

-A projector len for projector's LCD size about 4-5 inch. (around USD5 for a 2nd hand one). Mine is a cheap 120mm len from Taobao online shop (which is equivalent to about 36mm len in full frame camera) . Your len diameter may be different, then you need to adjust the camera body len mount hole size.

-A phone with camera. This camera's phone holder is designed for iPhone X. You may need to make adjustments to the size of the phone-holder-thicker.stl for your phone. And also make sure the minimum focus distance of your phone camera is less than 11 cm. Some phone cameras cannot close focus.

-A white board paper is needed as reflector of the image for the phone camera to capture. It should be glued to the backplate. See photo.

-A video or photo app to process the photo/videos captured because the images are slight tilted and required sharpening in post.

-2 screws to secure your len to the Lenfocus-holder.stl if your len is similar to mine (see photo).

-The Lenfocus-holder.stl is also used to stop the focus ring and len element coming off when pulling focus to the farthest.

The image quality can be seen here:
https://wordpress.com/post/fotojuny.wordpress.com/8

https://wordpress.com/post/fotojuny.wordpress.com/7

Note: the lock.stl are needed to glue to the body front surface near the len. They are used to secure the len to the body.
I used matte black PLA to print, but I think PETG may be better. The camera body inside must be dark and non-reflective.

The backplate's distance to the projector len can be adjusted slightly to accommodate your len type and to achieve infinity focus. This 3D printed camera with a 120mm len has a minimum focus distance about 1 meter. But if you adjust the backplate's distance, the minimum focus distance can be less.