If you were to carry one prime lens for all occasions, which one would it be? - Quora
40mm f/2.8 VS 50mm f/1.8 Canon EF Prime Lens Face-Off!
What advantages do a 40mm prime lens have over a 35 or 50? - Quora
Canon EF 40mm f/2.8 STM review: Digital Photography Review
What is the disadvantage of zoom lens? - Quora
If you were to carry one prime lens for all occasions, which one would it be? - Quora
What's the best lens ever made and why? - Quora
Is there a point to owning both a 50mm and a 35mm prime lens? - Quora
If you were to carry one prime lens for all occasions, which one would it be? - Quora
If you were to carry one prime lens for all occasions, which one would it be? - Quora
What advantages do a 40mm prime lens have over a 35 or 50? - Quora
Smallest Leica M Mount Lenses - 21mm, 35mm, 40mm, 50mm, 90mm)
What are the advantages and disadvantages of prime lenses and zoom lenses? - Quora
Sony FE 40mm F2.5 G Review