DoF may not exist...

Started 3 months ago | Discussions thread
JimKasson
MOD JimKasson Forum Pro • Posts: 35,338
Definitions
2

Greg7579 wrote:

It's a matter of where you think the pixels start falling off focus, which could be immediately as you say. That alone proves that the DOF tables are vastly exaggerated as to distances when the focus falls off the chosen point / plane of focus.

The definition of DOF is not based on the difference in sharpness at the plane of focus vs sharpness elsewhere. It's based on when the image sharpness falls below some predetermined absolute value.

If you are going to define a metric based on the difference between in-focus sharpness and some other level of sharpness, it's best to call it something else.

Jim

-- hide signature --
 JimKasson's gear list:JimKasson's gear list
Nikon Z7 Fujifilm GFX 100 Sony a7R IV Sony a9 II +1 more
Post (hide subjects) Posted by
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
MOD JimKasson
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow