If you’re out shooting on a sunny day and suddenly find that you need to start a fire, your lens may be able to do the trick. The video above shows how a photographer named Mohammad recently used his Carl Zeiss 45mm f/2 lens to light his cigarette while out hiking with friends. You could also use this handy little trick to light a fire if you’re out camping — as long as you have some direct sunlight to focus to a point.

Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.