We’re talking filters in this episode—not the kind you apply in Instagram to make your photos look different, but actual glass filters that change how light passes through the lens. Neutral density (ND) filters, circular polarizing (CPL) filters, infrared (IR) filters, and the debate over whether ultraviolet (UV) filters are worthless junk or actually useful.

You can shoot the most amazing photos using the best gear you can afford, but it doesn’t mean anything if the pixels you capture aren’t saved to a storage card. In this episode, Kirk and Jeff talk about SD cards: what do the symbols on the card stand for? What speeds are good? How best to transfer images from the camera to the computer? What capacities should you buy? If your camera includes two card slots, do you write to them sequentially or for simultaneous backup? And how in the world did Jeff manage to shoot a Hawaiian sunset and end up with zero images?