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Opticallimits > Forums > Just Talk > The (non)sense of hyperfocal distance

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The (non)sense of hyperfocal distance
Klaus Offline
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#9
09-06-2011, 08:07 PM
[quote name='Brightcolours' timestamp='1315331044' post='11347']

It does not assume that anymore or less than hyper focal distance....

[/quote]



Well, the Sigma 12-24mm images at 12mm are reasonably sharp in the corners when choosing a focus distances that is closer to the HFD. At infinity focus the corners are very smeared in the foreground.



The HFD is invariant of field curvature as you mentioned, yes, but in practical terms it is more useful with ultra-wides where a negative field curvature (the corners of the focus field are "pushed" towards infinity) is actually more common (to a varying degree) than a flat one.
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Messages In This Thread
The (non)sense of hyperfocal distance - by Rainer - 09-06-2011, 09:02 AM
The (non)sense of hyperfocal distance - by PuxaVida - 09-06-2011, 12:29 PM
The (non)sense of hyperfocal distance - by Klaus - 09-06-2011, 12:34 PM
The (non)sense of hyperfocal distance - by frank - 09-06-2011, 03:56 PM
The (non)sense of hyperfocal distance - by Klaus - 09-06-2011, 04:20 PM
The (non)sense of hyperfocal distance - by youpii - 09-06-2011, 07:42 PM
The (non)sense of hyperfocal distance - by Klaus - 09-06-2011, 08:07 PM
The (non)sense of hyperfocal distance - by Klaus - 09-07-2011, 04:52 AM
The (non)sense of hyperfocal distance - by frank - 09-07-2011, 06:11 AM
The (non)sense of hyperfocal distance - by frank - 09-07-2011, 06:17 AM
The (non)sense of hyperfocal distance - by PuxaVida - 09-07-2011, 06:33 AM
The (non)sense of hyperfocal distance - by frank - 09-07-2011, 07:00 AM
The (non)sense of hyperfocal distance - by Klaus - 09-07-2011, 07:44 AM
The (non)sense of hyperfocal distance - by Guest - 09-07-2011, 07:51 AM
The (non)sense of hyperfocal distance - by frank - 09-07-2011, 08:00 AM
The (non)sense of hyperfocal distance - by frank - 09-07-2011, 08:01 AM
The (non)sense of hyperfocal distance - by PuxaVida - 09-07-2011, 08:11 AM
The (non)sense of hyperfocal distance - by Dick England - 09-07-2011, 08:23 AM
The (non)sense of hyperfocal distance - by Klaus - 09-07-2011, 08:48 AM
The (non)sense of hyperfocal distance - by frank - 09-07-2011, 09:28 AM

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