Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2019 iMac up to 128GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$2699 $2199
SAVE $500

$2699 $2099
SAVE $600

$290 $203
SAVE $87

$130 $115
SAVE $15

$100 $40
SAVE $60

$3498 $3198
SAVE $300

$2347 $1897
SAVE $450

$1297 $1097
SAVE $200

$597 $497
SAVE $100

$2297 $1997
SAVE $300

$699 $499
SAVE $200

$60 $40
SAVE $20

$1699 $1199
SAVE $500

$1997 $1097
SAVE $900

$1499 $1379
SAVE $120

$372 $247
SAVE $125

$9999 $2999
SAVE $7000

$4500 $3500
SAVE $1000

$1000 $500
SAVE $500

$1398 $898
SAVE $500

$935 $549
SAVE $386

$309 $259
SAVE $49

$1300 $900
SAVE $400

$450 $280
SAVE $170

$700 $600
SAVE $100

$2000 $1270
SAVE $730

$1499 $779
SAVE $720

$450 $120
SAVE $330

$3998 $3498
SAVE $500

$150 $80
SAVE $70

$369 $175
SAVE $194

$1699 $1199
SAVE $500

$649 $449
SAVE $200

$1498 $998
SAVE $500

$999 $949
SAVE $50

$1099 $999
SAVE $100

$400 $300
SAVE $100

$7697 $4997
SAVE $2700

OWC
Blast off into savings!


DIY upgrades, computing essentials and more from OWC.

Focus Stacking: Banishes Depth of Field Limitations for Many Field Images

See my Zeiss DSLR lenses wish list at B&H Photo.

Update 4 September: focus for the two frames is now added/shown/explained.

See my instructional on focus stacking in Making Sharp Images.

Two frames at f/11, 2 minutes with Zerene Stacker, and aside from optical limitations in extreme corners of the Zeiss Loxia 35mm f/2 Biogon, this image is razor sharp near to far. Additional time and effort versus single image: negligible (given that a tripod was used).

Why don’t camera makes build in such features for handheld shooting, delivering the N originals plus one finished image, all in raw format too? In this age of unprecedented computing power and sophisticated software image processing, the slothful lack of imagination in the camera industry by the major players is shameful: only a few make some half-hearted efforts: Pentax with SuperRes pixel shift mode, Sigma with its elephantine torture of SuperFine image mode.

Update: the Olympus OMD E-M1 has built-in focus stacking. I have not tried it, but of course the tiny M4/3 the sensor size is least needful of the feature. Also, the stacked result is a JPEG: given the space hit of also saving the 8 RAW files for a stack as the camera does, why does it not output a 16-bit TIF as an option?

Spuller Lake (2 frame focus stack)
f11 @ 1/40 sec, ISO 100; 2016-08-26 15:49:04
Sony A7R II + Zeiss Loxia 35mm f/2 Biogon

[low-res image for bot]

Our trusted photo rental store

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.