Description in text form

Camera

• Operating the Camera is simple: load a Film Roll, open the Viewfinder,
  compose your shot and release the shutter.
  
• Press/Hold Sneak when looking through Viewfinder to control Camera
  settings: Focal Length, Shutter Speed, Flash mode, Composition Guides.
  
• Use the Camera while sneaking to open the Attachments window,
  where you'd be able to:
  • Load a Film
  • Equip the Flash (Redstone Lamp)
  • Modify the Lens (Spyglass)
  • Put a Filter on the lens (Glass Panes)

Film

• To capture an image you'll need to expose light-sensitive film.
• You can use simpler black and white film or, more sophisticated
  and harder to make and process, color film.
• Single film roll can fit 16 frames on it.
• Developing is required to prepare film for printing.

Lightroom

• Photographs are printed with the help of a Lightroom block.
• Negatives can be previewed before printing to help you choose the
  best exposure.
• Black and white print requires Paper and Black Dye.
  Color print will require Cyan, Magenta and Yellow dyes on top of that.

Photograph

And finally, you have your Photograph - a captured moment in time!
Now it's time to admire the result, hang it on the wall, share with
friends, sell it to the National Geographic. The possibilities are endless.

• Optifine - known for causing problems with other mods. Use Sodium/Embeddium instead.
• Visual Overhaul - crashes when opening camera controls - GitHub Issue
• Exordium - causes issues and flickering when looking through viewfinder.
• FastAnim (Fabric) - breaks player model animations with camera. Github Issue