My venerable Sigma 150mm f/2.8 EX DG IF HSM  macro (to use its full, slip off the tongue, title) virtually lives on a Nikon D7100 body.  For over a decade, it has seen heavy...

I was really delighted when, over a year ago Luis Manuel Iglesias Nuñez asked me to provide a preface for a book he was writing.     We have never met...

Nowadays, we are spoilt by technology and there is a tendency to think in terms of a camera controlling the output of flash guns via its DTTL exposure system. Even better, it...

Shortly after I put my experiences with the Pansonic GH4 4K post focus mode on the Learn Macro site I had a very helpful email from Catherine at Helicon Focus. The more recent versions...