So, it sounds like you’re


So, it sounds like you’re looking to establish a shallow depth of field for your interview, with the subject in focus, but the background blurry.

With such a small lens (and a smaller still CCD), depth of field is going to be a bear, but it’s not impossible.

A telephoto lens adapter might help, but befor you rush out to drop $50 on it, try this (if you haven’t already):

Use manual settings to turn off any light boosting, and open your aperture as wide as it goes.

Put your subject as far away from the background as possible.

Put your camera about 1/3 the distance to your subject as they are to the background of the shot. (You might have to play with this a bit to get it right)

Zoom in all the way, as far as your optical lens will allow you. (Disable, or at least don’t extend into the digital zoom range, it will mess stuff up.)

Zoomed in all the way, adjust your camera so you get the shot you want. Physically move the camera (don’t zoom out) until your subject is in the frame.

If you’ve done all of this, you should have a much shallower depth of field, and by manually focusing, you should be able to blur up the background.

Now, I’ve got to admit, that’s a very crude guerrilla method to depth of field, but it’s a lot easier than trying to figure out all the math, and it works well for me.

You might want to add a lot of light to the scene as well, as zooming in will cut down your total light hitting the CCD, and you need a lot of light to really pull off a good DOF.

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