Hi all,

Question about 4x5 focusing. But first, to set the stage, let's talk digital for a moment.

When learning about focusing a digital camera I have read many times and in many places, to maximize overall image sharpness and depth of field, focus 1/3 of the way "into" your scene.

By all accounts this works pretty well and reliable.

Now, let's shift gears to 4x5. Here, I have learned from others and have read, basically do the following:
  1. Focus on the near/far
  2. Tilt for the near/far
  3. Note the standard position on the metric scale
  4. Then hunt around the scene and find the most out of focus area, focus on that area, then note that position of the standard on the metric scale
  5. Then, here's the catch....place the standard at the mid-point of the near and far focus points

The last step is the one I want to talk about. Positioning the standard on the mid-point....doesn't that equate to focusing 50% "into" the scene? Shouldn't we be focusing at the 1/3 point "into" the scene? I know the math is harder, but, thoughts on that?

Thanks!!