I recently asked how to solve a simple SQL query. Turns out that there are many solutions.
After some benchmarking i think this is the best one:
SELECT DISTINCT Camera.*
FROM Camera c
INNER JOIN cameras_features fc1 ON c.id = fc1.camera_id AND fc1.feature_id = 1
INNER JOIN cameras_features fc2 ON c.id = fc2.camera_id AND fc2.feature_id = 2
Now, I've not clue how to perform this query with Django ORM.