DIY Depth of Field (dof) adapter – for sony vx2100

I love the tight dof look that you can get with cine lenses. I have always been greatly saddened by the lack of dof in consumer and prosumer cameras. I have gone through a few iterations of building different half-assed diy dof adapters. This current one is based on a cd player motor spinning a ground down cd blank with one side sanded to a matte finish. The case is a 2 outlet electrical junction box painted black inside and out. It has a nikon lens mount from a $10 macro tube jb welded to the outside, an external battery pack, and a power switch.

The theory of a dof adapter.
Something having to do with the dimensions of the image sensor and the lens optics means that most digital videocameras have very wide depth of field. What depth of field means is that if you are interviewing them sitting at their desk chair, then their desk and the wall behind them are all in focus. The range of things that are in focus is called the depth of field. By using an adapter you can control this field with lens and aperture selection.

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CHDK Update

chdk_splash screen

So as I referenced in an earlier post, I bit the bullet and bought a camera so I could test out CHDK. CHDK is a hacked firmware for canon cameras that use one of three imge sensors. I believe it is the digic 2, 3, and 4 sensors. It turns out that all of the powershot line uses the same image sensors. The optics, buttons and features are added or removed based on the price point of the camera. If you use CHDK you can enable them AND add new features the designers may never have thought of! click here to find a compatible camera on amazon More info about my trials and tribulations after the jump.

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