I own a Krasnogorsk K-3, I purely use it for fun, not professionally. I've put about three rolls through it at this stage, and although I'm happy with the quality of the footage, I notice a large dust build up on all the the footage, as well as some continuous straight scratching on the right side of the film. Have been quoted £400 to have the camera professionally cleaned and serviced, but it's not worth that so I'm not really willing to fork out that much just for a camera that I use for fun. Was wondering if anyone here has experience of cleaning this camera themselves? And if they could give any advice to potentially fixing this at home? I gave the camera a good blow with compressed air, and a little brush the last time I put a roll through it, but still got the recurring issues. Any other help would be massively appreciated!
I have attached some images for reference.