2 questions: Dof, and G35

[mushyosh]

Can someone explain to me why the CMOS chips equal a greater depth of field?

Also, will the guerilla 35 lens work with the V1U?

Thanks alot

[Huy Vu]

CMOS doesn't automatically equal better depth of field. The size of the chip will play a big role. The V1U uses CMOS chip but smaller size (1/4'') so it might be more difficult to get DOF.

[Barry_Green]

Smaller chips need a wider-angle lens to deliver a comparable field of view. Wider-angle lenses = deeper DOF.

[mushyosh]

Um.... Wider angle lens means you can get a more shallow depth of field? Of course, like everyone else and their grandma, I want a shallow depth of field to simulate film as much as possible. I was hoping the G35 lens would give me this.

[Barry_Green]

Wider lens = deeper DOF. More telephoto lens = shallower DOF.

Small chips need wide-angle lenses to deliver a usable field of view. Larger chips use longer lenses for the same field of view. Which is why the larger-sensor formats (like 35mm film or 2/3" video) have shallower depth of field for any given subject size, as compared to the small-sensor cameras (like 1/3" CCD or 1/4" CMOS cameras).

A mini35/G35/M2/Letus type of lens adapter will give you the same shallow DOF as a 35mm movie camera, regardless of what type of camera you mount it to.

[Huy Vu]

Ah, you beat me to it.