These are cameras I currently use that are missing from the data base:
Nikon F3P (press model)
Nikon SP rangefinder-vintage
Nikon S3 rangefinder-vintage
Cosina Voigtlander R2S Bessa rangefinder
I would appreciate if they were added.
This will happen when you upload a photo with no EXIF data and you edit the details to add the camera yourself. Afterwards, it will be added to the list automatically for others to use.