Using the Konstruktor DIY 35mm SLR film camera kit is a breeze. First, take your time to assemble the camera. It usually takes 1 - 2 hours. Follow the instructions carefully to understand how all the parts fit together and how the camera works. Once it's built, load a 35mm film roll into the camera. When you're ready to shoot, look through the top - down viewfinder and use the ring on the lens to focus. For regular shots, use the 'N' mode. If you want long exposures, switch to the 'B' mode and use a tripod to keep the camera steady. You can also create multiple exposure photos using the uncoupled shutter release. After shooting, take the film to a lab to get it developed. When it comes to maintenance, keep the camera in a dry and clean place. If you want to change the look of your camera, you can easily peel off the stickers and attach new ones. And that's it - enjoy your creative photography journey with the Konstruktor!