So i want to do a kind of long-term art project, but i need some ideas for what to draw.

This depends on your drawing skills, if they are good I would go for drawing a person or detailed lips, if you have less skills draw something simpler like a field of flowers or a textured sunset. Hope I helped!

~Sunflower UwU

changeable lenses of different focal lengths allows light to enter the camera,which then forms the image on light-sensitive film;