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...
$1798 $1298
SAVE $500

$3049 $2399
SAVE $650

$3508 $2998
SAVE $510

$1849 $1199
SAVE $650

$998 $848
SAVE $150

$3999 $2998
SAVE $1001

$2299 $1799
SAVE $500

$1597 $1297
SAVE $300

$80 $33
SAVE $46

$2299 $1799
SAVE $500

$1898 $1498
SAVE $400

$2799 $2299
SAVE $500

$2299 $1799
SAVE $500

$600 $400
SAVE $200

$240 $175
SAVE $65

$699 $499
SAVE $200

$400 $300
SAVE $100

$1599 $1398
SAVE $201

$2042 $1597
SAVE $445

$1699 $999
SAVE $700

$180 $100
SAVE $80

$1199 $1099
SAVE $100

$1199 $1099
SAVE $100

$999 $949
SAVE $50

$1849 $1199
SAVE $650

$400 $300
SAVE $100

$1699 $999
SAVE $700

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


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

Testing the Apple iMac Pro + macOS Compatibility Issues with Zerene Stacker and Iridient Developer

Thank you for buying your 2017 iMac 5K and/or iMac Pro at B&H Photo, and for upgrading it at OWC MacSales.com. Both vendors made and make my extensive tests of the Apple iMac Pro and other Macs and gear possible.

Not sure which Mac you need, or how to configure it, plan for backup, etc? Consult with Lloyd.

I am back home from my Jan 2 - Jan 5 trip to OWC labs in Woodstock, IL. It was a tough one, with not a lot of sleep and about 40 hours of testing. Plus some more testing upon my return, to complete the comparisons with other machines.

Thank you for buying from OWC / MacSales.com which hosted me at OWC labs and made machines available for testing, and buying iMac Pro from B&H Photo, which sent me an iMac Pro which is sitting on my desk for a few weeks. This research was a huge amount of work and is provided for all comers to read, so subscribing is much appreciated.

Photographers running macOS will want to follow my blog posts and review of the iMac Pro at MacPerformanceGuide.com very carefully for the next few days.

A lot of stuff will be appearing, including the most in-depth and useful review of the 2017 iMac Pro available anywhere on the internet, at least for still photographers and anything similar. By that I mean whether it will help or not help your own photographic and general computation-intensive work, and whether the iMac Pro is a needless cost or a win. It all depends.

Wide-ranging tests will start appearing shortly, where I might save readers thousands of dollars by showing the value proposition of the iMac Pro versus the 2017 iMac 5K. However, the good news is that Adobe Lightroom users will find joy, if the price of the iMac Pro can be swallowed.

There are also compatibility issues with the new iMac Pro (and 2013 Mac Pro) with both macOS 10.13.2 and 10.12.6 (latest versions with the security updates).

It is my suspicion that Apple’s claims of fixes for Meltdown and Spectre are only half the picture and might be misleading, since I am observing performance issues in my own software whose code has always been highly performant, for 10 years. Now it’s up to 3X slower for no reason (no changes to the source code). And unless carefully tuned, there is a 2X to 3X variation in performance with only small changes in buffer size and thread count. Worse, that tuning changes by machine and drive speed. Over a decade, I never saw such extreme behavior—it all seems to have started with the recent security updates to 10.13.2 and 10.12.6.

OWC Envoy Pro Elektron

Ultra-high performance across entire capacity, outperforms the competition.

Tiny, bus-powered, rugged, compact!


√ No more slow and noisy hard drives!
Thunderbolt 4 Dock

Thunderbolt 4 hub and ports!

Any Mac with Thunderbolt 3.


OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!

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

Nikon Z 7 Mirrorless Digital Camera with 24-70mm Lens (Refurbished)
$3049 $2399
SAVE $650

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.