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AlexMonro
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Reged: 05/06/2006
Posts: 741
Loc: Exeter, Devon (and Somerset so...
Re: Infinity closer than you think?
      08/11/2007 10:06

I tend to use a hyperfocal technique for landscapes, similar to that suggested by beejaybee, but mindful of the improvements in film resolution since my Nikon AI lenses were designed and the assumptions made for the circle of confusion, I allow an extra stop, i.e. I set the DoF scale mark for a stop or so wider than I'm actually using against the infinity infinity mark.

So using a 24mm lens at f/11, I'd focus at about 2.3m, and expect everything from just over a metre to be in focus. This is usually adequate to get the foreground sharp. With longer focal lengths and close foregrounds it gets trickier due to the narrower DoF, and I have to think carefully about the composition and what I want to be in focus.

You might find this tutorial and this on-line calculator helpful (especially if your lens doesn't have DoF scales).

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Subject Posted by Posted on
* Infinity closer than you think? Per 07/11/2007 21:33
. * * Re: Infinity closer than you think? beejaybee   07/11/2007 22:46
. * * Re: Infinity closer than you think? AlexMonro   08/11/2007 10:06
. * * Re: Infinity closer than you think? Per   08/11/2007 19:37

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