View single post by Eric
 Posted: Wed Feb 13th, 2019 04:28
Eric



Joined: Thu Apr 19th, 2012
Location: United Kingdom
Posts: 4435
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chrisbet wrote:
Thanks to Roger & Eric for their contributions to my knowledge on the subject so far but, having been doing some reading and getting hold of a DOF calculator for my phone, I have a question - what is hyperfocal distance??

It's the closest point a lens can be focused, whereby everything behind that point will be in focus to infinity. It varies for lens focal length and aperture.

Used for landscape photography mainly and a throwback from early plate camera days.

These days you would be lucky to get infinity or even great distance into focus due to atmospheric fug.

:thumbsdown:


Dof is more relevant to general photography.
For many years, before apps and internet, I created a spreadsheet specific to my lens a**enal and their fstop range for set distances, which I was more likely to use. It was a sort of abridged version for my use to stop carrying around unnecessary data. I printed out a copy for my camera bag and used it quite a few times. But once you get the hang of a subject it sort of comes intuitively....until you change genre. I am at the moment struggling with dof on my bird shots because my seating position/location varies as does the need to fiddle with settings to handle low light levels whilst avoiding noise.... not to mention bird size and movement.


Of course you can use the depth of field preview button on the camera to get a reasonable idea of where focus tails off. That's assuming you haven't assigned that button for another function....like me


:doh:

Last edited on Wed Feb 13th, 2019 04:29 by Eric



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Eric