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Re: [OM] IMG: Sunrise, Moonset

Subject: Re: [OM] IMG: Sunrise, Moonset
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Tue, 21 Oct 2014 07:44:16 -0400
It's basic optics, Mike, but considers not only the camera lens but the human eye's lens. It has absolutely nothing to do with digital and is not influenced by digital technology. It's as valid today and tomorrow as it was with an 8x10 view camera.

I suggest you read this for an overview
<http://www.cambridgeincolour.com/tutorials/hyperfocal-distance.htm>

Chuck Norcutt

On 10/20/2014 2:16 PM, Mike Lazzari wrote:
Here's a little hyperfocal math at work showing the you can trust them
numbers.
Nothing like a little math to obfuscate things. I never did get the
hyperfocal thing. We were lead to believe that everything between the
marks was "in focus". In or out. Kinda digital. But when you turn the
focusing ring what you see is definitely analogue. What is magical about
those little marks? Well maybe it was the limitations of the media and
equipment of the day. I think that "hyperfocal" is a carryover from the
past that may not have much relevance with today's technology. The
hyperfocal spread is shrinking as the technology improves to the point
where it becomes meaningless. Maybe that's why the markings disappeared.

Mike
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