Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2018 Mac mini up to 64GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$1798 $1298
SAVE $500

$148 $138
SAVE $10

$1858 $1358
SAVE $500

$1858 $1358
SAVE $500

$3049 $2399
SAVE $650

$3664 $3154
SAVE $510

$4087 $3088
SAVE $1000

$1597 $1297
SAVE $300

$80 $33
SAVE $46

$1898 $1498
SAVE $400

$600 $400
SAVE $200

$240 $175
SAVE $65

$699 $499
SAVE $200

$400 $300
SAVE $100

$1645 $1345
SAVE $300

$2106 $1476
SAVE $630

$1699 $999
SAVE $700

$180 $100
SAVE $80

$1199 $1099
SAVE $100

$1199 $1099
SAVE $100

$999 $949
SAVE $50

$400 $300
SAVE $100

$1699 $999
SAVE $700

Nikon Z7: Image Sharpness vs Zone of Focus, Autofocus Error and Mitigation

See my Sony mirrorless wishlist and Nikon mirrorless wishlist and Canon mirrorless wishlist.

My review of the Nikon Z7 is in full swing, though I’m spending a lot more time evaluating/publishing than enjoying the gorgeous fall season and weather.

This page shows just how wildly inaccurate the placement of the zone of focus can be with the Nikon Z7 (and other systems!). Placement of the zone of focus has major implications for total sharpness and visual impact, yet autofocus can easily choose a sub-optimal choice of focus which displaces/biases the zone forward or rearward even as the chosen point is fully sharp. This has implications for total sharpness and visual impact.

Nikon Z7: Autofocus Accuracy: Zone of Focus Error, Example and Mitigation

Includes a discussion of how to manage the issue. In terms of reliably making more sharper images on any camera, this page alone is worth the price of admission, since these days understanding such issues is required for excellent technical execution. See also Making Sharp Images.

Sharp image (IBIS ON), with focus biased to the foreground
f4 @ 1/15 sec handheld IBIS=on, ISO 64; 2018-10-08 17:21:32
NIKON Z7 + Nikon NIKKOR Z 24-70mm f/4 S @ 42mm
ENV: Lundy Canyon trail near trailhead, altitude 8000 ft / 2438 m, 55°F / 12°C
RAW: LACA corrected

[low-res image for bot]

Save the tax, we pay you back, instantly!
View all handpicked deals...

Sony HVL-F20M External Flash
$148 $138
SAVE $10

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.