Today's Practice

Hey Hammy! I only used one camera, i just set it up in different angles. I'm glad u liked it!

Very nice work! Did you have more than one video camera to shoot this? The different angles were captivating.

There is a direct correlation between aperture opening and depth of field. The smaller the aperture opening the deeper the depth of field. If you look on a 35mm camera lens you will see on the lens lines inscribed that match on both sides of the center. Sometime it's in colors and sometimes its married to f-stop openings. If you follow the lines back to the distance scale on the lens (ie, ft or meters), the spread between the two lines (ie, 8 to 8 or 16 to 16( will show you exactly what the depth of field is. Where the focus field starts and stops, in distance from the camera. In video the correlation is not so precise but in theory similar. Hence, the more closed down the aperture (iris), the deeper the depth of field. It is impossible (without spending a lot more money (a lot)) to get this kind of control. DSLR cameras have much more control over depth of field, but the audio is not quite there. In very expensive professional lenses (ie, Fujinon) there is a back-focus that lets you set the depth of field parameters. In the under 15k range, it's hard to find so you have to approximate. Does this help?

I've been looking for a good tutorial on depth of field and most say to open the aperture and compensate with ND filter and shutter speed and then stand far from the subject and zoom in. Is there a better way to do this? My camera is the JVC-GYHM 100 (when i took the TCA you recommended this one) and i'm using the lens it came with. How can i achieve a shallower depth of field with the cam?