รายชื่อยี่ห้อเลนส์ที่ถ่ายทั้งภาพภูเขาด้วย Range 'Toubkal Atlas' และภาพภูเขาด้วย Range 'Lasta Massif'
List the brands of lenses that took both a picture of mountains with range 'Toubkal Atlas' and a picture of mountains with range 'Lasta Massif'
df_mountain = pd.DataFrame(columns=['id', 'range']); df_photos = pd.DataFrame(columns=['mountain_id', 'camera_lens_id']); df_camera_lens = pd.DataFrame(columns=['brand', 'id'])
set(df_photos[df_photos['mountain_id'].isin(df_mountain[df_mountain['range']=='Toubkal Atlas']['id'])]['camera_lens_id']).intersection(set(df_photos[df_photos['mountain_id'].isin(df_mountain[df_mountain['range']=='Lasta Massif']['id'])]['camera_lens_id']))