The versatility of a zoom or the light-gathering capabilities of prime lenses? Here's why Michael Topham chose the latter for a once-in-a-lifetime tour of Japan
AP speaks to Mr Kazuto Yamaki in an exclusive interview held at the company's headquarters in Aizu, Japan.
Sigma has created a world first with its latest wideangle prime lens. Michael Topham puts it to the test
Is the Sigma 24-35mm f/2 DG HSM | A lens a viable alternative to the manufacturer’s wideangle primes? Michael Topham finds out