An Easy Way to Set Infinity Focus on DP Merrill Cameras

Started Feb 14, 2013 | Discussions thread
PicOne
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Re: How does it know "real" infinity?
In reply to victorgv, Feb 15, 2013

victorgv wrote:

Kendall Helmstetter Gelner wrote:

Scott Greiff wrote:

Fukui-san today wrote a post today that gives a super-easy way to set the DP Merrill cameras to infinity focus. The original article is here:

http://shinzlogclips.blogspot.com/2013/02/sigma-dp-merrill.html

The procedure is:

  1. Set the camera to Auto Focus.
  2. Turn off the camera.
  3. Turn the camera back on. When the camera restarts, focus will be set to infinity.
  4. Turn the camera to Manual Focus to ensure the shutter won't auto focus.
You have to be careful here, not to touch the focusing ring on the lens, of course.

It may go to what it thinks is infinity, but I wonder if it's accurate... it seems like if it really knew where infinity was it would not ever let you focus past it (which I think it does).
A great tip if it works...

It works and it faster then manual adjustment. . It focuses past the infinity but may be they did it such that when you use aperture around f11 you still be able to blur everything but very distant objects.

ability to 'focus past infinity' is by design to accommodate potential temperature (climate) changes, which as you can imagine heat etc.. makes things expand (eg. lens elements) etc.. and therefore affect where 'infinity', as denoted by the lens barrel, really is.

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'Everything in photography boils down to what's sharp and what's fuzzy.'
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