Latest or all posts or last 15, 30, 90 or 180 days.
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$280 $230
SAVE $50

$100 $100
SAVE $click

$4499 $3499
SAVE $1000

$1398 $898
SAVE $500

$649 $449
SAVE $200

$7595 $5995
SAVE $1600

$799 $499
SAVE $300

$2598 $2398
SAVE $200

$1498 $1398
SAVE $100

$249 $219
SAVE $30

$1699 $1299
SAVE $400

$21999 $19999
SAVE $2000

$8399 $7599
SAVE $800

$1149 $799
SAVE $350

$260 $180
SAVE $80

$4998 $3998
SAVE $1000

$569 $519
SAVE $50

$899 $799
SAVE $100

$2347 $1997
SAVE $350

$883 $633
SAVE $250

$1299 $949
SAVE $350

$1636 $1036
SAVE $600

$1699 $1299
SAVE $400

$1199 $1099
SAVE $100

Upgrade the memory of your 2018 Mac mini up to 64GB
OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!

Shootout: Voigtlander FE Nokton 21mm f/1.4 Aspherical vs Zeiss Loxia 21mm f/2.8: Mosaic (Sony A7R IV)

This series evaluates the Voigtlander Nokton 21mm f/1.4 Aspherical from f/1.4 through f/8 against the Zeiss Loxia 21mm f/2.8 on an extremely demanding target: a planar subject with exceedingly fine detail. This target is among the most demanding any lens can face, mercilessly showing most all lens weaknesses.

Sony A7R IV 4-shot pixel shift was used to capture the best possible detail. Results with pixel shift will always look notably better than without (assuming no checkerboarding issues).

Field curvature is of particular interest because at 60MP, small deviations across the field are not so small, and stopping down past f/4 begins to degrade micro contrast from diffraction. Also of interest is lens symmetry, which is hard to find among most lenses on a 60MP sensor, which mercilessly shows the slightest flaw. However, lacking stated specifications from Sony, there is no way to be certain that any particular lens skew is the fault of the lens, or the sensor/flange parallelism being off a few microns.

Shootout: Voigtlander FE Nokton 21mm f/1.4 Aspherical vs Zeiss Loxia 21mm f/2.8: Mosaic (Sony A7R IV)

Includes images from f/1.4 to f/8 at up to full camera resolution.

CLICK TO VIEW: 21mm Options for Sony Mirrorless

CLICK TO VIEW: Suggested Voigtlander Lenses for Sony FE

  
Zeiss Loxia 21mm f/2.8 and Voigtlander Nokton 21mm f/1.4 Aspherical
f2.8 @ 1/60 sec pixel shift, ISO 100; 2019-09-17 18:58:47
Sony A7R IV + Voigtlander FE Nokton 21mm f/1.4 Aspherical RAW: vignetting corrected, USM {8,50,0}

[low-res image for bot]
OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!

Best Deals, Updated Weekly
View all handpicked deals...

SanDisk 256GB Extreme PRO UHS-I SDXC Memory Card
$100 $100
SAVE $click

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.