Vintage 1978 Gaf View Master Spacemen Theatre Projector In The Round Reels

Had the projector.  view master and reels. The projector turns on but when I put a reel in I can't see the picture clearly. Not sure if you calibrate the projector and it's just myself who can't figure it out. Not sure what original reels came with but there is 6 star Trek 3 flash Gordon and a buck Rodgers. Those are in the white plastic case that came with tin. Other reels and paperwork also included. The tin is in rough shape. Wear to the artwork and tin. Does have lid. You will receive everything in pictures.
Please make note again the the projector turns on with bulb but getting a clear picture may not work.
Thank you