What are the names of photos taken with the lens brand 'Sigma' or 'Olympus'?
SELECT T1.name FROM camera_lens AS T1 JOIN photos AS T2 ON T2.camera_lens_id  =  T1.id WHERE T1.brand  =  'Sigma' OR T1.brand  =  'Olympus'
SELECT T1.name FROM camera_lens AS T1 JOIN photos AS T2 ON T2.camera_lens_id  =  T1.id WHERE T1.brand  =  'Sigma' OR T1.brand  =  'Olympus'
[{'name': 'Olympus 15mm f/8.0 Body Cap'}, {'name': 'Sigma 19mm f2.8 EX DN'}, {'name': 'Sigma 19mm f2.8 EX DN'}, {'name': 'Olympus 15mm f/8.0 Body Cap'}, {'name': 'Sigma 19mm f2.8 EX DN'}, {'name': 'Sigma 19mm f2.8 EX DN'}]