Hot Shot #03
To start with I was struggling to get clear, sharp photos. But, as David explained, all I have to remember is the law of reciprocals: if I’m using a 400mm lens, I need a shutter speed of at least 1/400 sec to ensure a sharp image. With a 1.7x converter, of course, the shutter speed needs to be even faster – around 1/680 sec in my example. With the image above, though, this wasn’t practical, as it wasn’t bright enough on the day to set a fast shutter speed without really bumping up my ISO and risking noise. To get round this, I used my tripod to help me steady the camera and keep the seals sharp.