Nikon recently celebrated the 80th anniversary of the Nikkor brand … and decided to commemorate the achievement by releasing a video offering an insight into how its lenses are made nowadays.

The three-and-a-half-minute movie takes viewers through lens-making process; from forming the glass, to meticulously checking and polishing it before fixing it in a barrel ready to mounted on your camera.

It's a fascinating insight into process you probably take for granted, and certainly a great way to celebrate the 80 year history which began with the first shipment of Nippon Kogaku’s Aero-Nikkor aerial photographic lenses.

                                                                                                                                                                                                                                                                                                                                                                                                Sony think it's daft that so many people buy expensive DSLRs and then leave them on automatic settings, so they sent out professional photographer Gary Heery to investigate why.

In a video which has gone viral online, Heery can be seen chatting to a number of photographers about how they use their cameras, an what they know about them.

It soon becomes apparent that many people may as well be wearing expensive necklaces as their DSLRs, because they are just for show and they don't know how to use them.