As I don't have a full frame camera, to a large extent, this is actually meaningless to me other than knowing that if I used the same lens on a 5D I would have a wider field of view. I am aware that when I mount these to my Canon 7D, there is the 'crop factor' of 1.6.

I must admit, I wasn't aware it was a marketing term and am more than happy not to use that term. I am using the term 'crop factor' to describe the stills EF lens I have in terms of a stills lens's field of view compared to a 35mm Full Frame.

I should have qualified my reference points. That said, forget the tern “crop factor” as this is mamstill Cameras term used to describe diffennt fields of view on cameras compaired to the old 36x24mm film size, and is not really of much nausea in Cinema Camera comparisons, where S35 24x14 is the reference standard.ĭenny Smith wrote:When you refer to the old still camera marketing term “crop factor” what are you referring to, the sensor size difference between a Broadcast camera sensor to what, a Full Frame Camera? Removing the B4 Mount and adding a PL mor EF mount gives you back then1-stop and turns the Broadcast camera into a S16 Cinema Camera (sensor is slightly larger than then S16/Micro Cinema Camera) When used with its native B4 mount, the optical block in the B4 lens mount, expands the lens image to cover the larger 1-inch sensor, works much like a tele-converter x1.5, which adds about a 1-stop light loss. Other words a 18mm lens is your “normal”, 50mm equivalents field of view lens. That said, the Broadcast camera with a EF mount will give you about a 2.78 difference compared to a 35.5x20mm FF Camera. So for a compariason between the Broadcast camera you need to be specific, compared to which camera. A full frame DSLR Camera in 16:9 uses about a 35.5x20mm area of its sensor, some crop down to APS/C about 24x14mm. The Ursa Broadcast has a 1-inch sensor, 13x7.3mm. When you refer to the old still camera marketing term “crop factor” what are you referring to, the sensor size difference between a Broadcast camera sensor to what, a Full Frame Camera?

Blackmagic ursa broadcast