Posts Tagged ‘ lens distortion

De-Mystifying ‘Crop Factor’

The crop factor conundrum 5d,scarlet,epic,arri

The Crop Factor Conundrum

There has been quite a bit of discussion lately on the crop factor of cameras like the Scarlet. There is a recurring phrase that I’m seeing which goes something along the lines of, “You will need to shoot at 30mm because the lens will become a 48mm.”. Yes, that’s true – the lens will have a 1.6x magnification factor, and 30 multiplied by 1.6 is, in fact, 48 – but guess what? That 30mm will still behave like a 30mm, regardless of if your field of view changes or not. However, let’s take a step back for a second, because we’re getting ahead of ourselves.

Back when I first began making films there was a de-facto camera for indie filmmakers – the DVX100. A plastic fixed zoom lens gave you plenty of framing options, allowing the camera to shoot anywhere you wanted to in glorious 24p. Jump forward to a couple years ago, and we had the 5DMKII, a camera which changed the indie landscape and gave people the added bonus of using custom glass. Here’s the snag, a lot of people that have shot on the full-frame 5D are now moving on to shooting with other cameras and becoming flustered when their 50mm is now an 80mm equivalent in terms of Field of View (FOV). This is nothing new, in fact many cameras have an ASP-C crop sensor, oftentimes Read more