Latest or all posts or last 15, 30, 90 or 180 days.
Memory Upgrades for 2019 Mac Pro - Save Up to 65% vs Factory Costs
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$3498 $2998
SAVE $500

$370 $280
SAVE $90

$4899 $4499
SAVE $400

$1000 $700
SAVE $300

$1699 $1149
SAVE $550

$280 $230
SAVE $50

$1899 $1499
SAVE $400

$4499 $3499
SAVE $1000

$2198 $1998
SAVE $200

$3998 $3498
SAVE $500

$1799 $1649
SAVE $150

$18599 $16599
SAVE $2000

$1149 $799
SAVE $350

$650 $450
SAVE $200

$199 $119
SAVE $80

$280 $200
SAVE $80

$1399 $1049
SAVE $350

$1199 $779
SAVE $420

$250 $200
SAVE $50

$1699 $1149
SAVE $550

$1499 $999
SAVE $500

$200 $125
SAVE $75

$69 $49
SAVE $20

$120 $35
SAVE $85

$189 $159
SAVE $30

$3899 $1499
SAVE $2400

$2999 $1999
SAVE $1000

$1699 $899
SAVE $800

$1698 $1198
SAVE $500

$1149 $799
SAVE $350

$1399 $1049
SAVE $350

$1498 $998
SAVE $500

$2797 $2497
SAVE $300

$280 $230
SAVE $50

$799 $499
SAVE $300

$899 $549
SAVE $350

$1699 $1149
SAVE $550

OWC Envoy Express

World’s first Thunderbolt 3 M.2 NVME SSD enclosure.

Super fast, bus-powered, 3.3 oz, DIY easy, rugged and compact!


See also OWC Express 4M2
√ No more slow and noisy hard drives!

Sony A7R Shutter Vibration: Studio Assessment with 55m f/1.8 Sonnar

Get the Sony FE 55mm f/1.8 Sonnar for A7R / A7 at B&H Photo.

See prior discussion on the Sony A7R shutter vibration as well as the lengths some users are going to mitigate it.

A study from 1/100 through 1/400 in 1/3 stop shutter speeds is now published showing the degradation under ideal studio conditions at a fixed aperture of f/4.

I would call this study “best case for the A7R” because I did my very best to help the camera avoid any issues. The Red Barn example shows greater losses in the field for both the 55/1.8 and Leica 50/2 APO (crops shown for both in that example), but with exactly the same blur pattern.

In simple numbers: 36 megapixels becomes ~24 in resolving power terms (maybe even less), due to this shutter vibration.

The actual-pixels crop below is from the Sony A7R at peak resolution—no degradation and razor sharp complete with color aliasing, spurious resolution and moiré. Exactly what should be recorded. The blur improves some of this, effectively acting as an anti-aliasing filter! But it degrades and dulls fine details.

Actual pixels
OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
Holiday Deals on Camera Gear


Sony, Nikon, Canon, Fujifilm, more!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!
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!

MacPerformanceGuide.com

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.