Upgrade the memory of your 2018 Mac mini up to 64GB
Handpicked deals...
$1299 $1124
SAVE $175

$30 $15
SAVE $15

$2998 $2498
SAVE $500

$1199 $920
SAVE $279

$1999 $1599
SAVE $400

$2799 $2399
SAVE $400

$89 $59
SAVE $30

$400 $280
SAVE $120

$1798 $1598
SAVE $200

$3297 $2797
SAVE $500

$3397 $2797
SAVE $600

$150 $90
SAVE $60

$1398 $898
SAVE $500

$3698 $2998
SAVE $700

$1799 $1329
SAVE $470

$1999 $1199
SAVE $800

$2299 $1599
SAVE $700

$2399 $2049
SAVE $350

$2799 $1899
SAVE $900

$997 $897
SAVE $100

$2099 $1699
SAVE $400

$1999 $1369
SAVE $630

$1349 $949
SAVE $400

$4499 $3999
SAVE $500

$329 $329
SAVE $0

$1499 $1029
SAVE $470

$1499 $1289
SAVE $210

$2199 $1999
SAVE $200

$3399 $2199
SAVE $1200

OWC
USB-C Travel Dock

Fast charging with up to 100W!

HDMI, SD card reader,
USB-C port, 2 USB Type-A ports
Built-in cable self-stores neatly.
See also OWC 14-port Thunderbolt 3 Dock"

Zeiss ZM 50mm f/1.5 C-Sonnar T*

The Zeiss ZM 50mm f/1.5 C-Sonnar (about $1117) is a classic alternative to the 50mm f/2 Planar.

The 50/1.5 C-Sonnar is a classic design favored by some for portraits and its dreamy look when shot in the f/1.5 - f/2 range, as well as its classic (historical) look long appreciated in photography.

The compact design is characterized by uncorrected spherical aberration resulting in some focus shift, as well as wave-type field curvature. This is not a lens to look technically excellent, but rather one that offers unsual artistic qualities.

Use if this lens must be learned: its focusing characteristics (eg focus shift) can result in soft images if not understood! Get it only if you understand these issues; it’s an artists lens that takes some skill and appreciation to use well.

Image quality

Not yet tested.

MTF charts suggest that this lens offers significant focus shift and field curvature: expect a dreamy look at f/1.5, and be sure to understand focus shift, which is discussed in more detail in DAP.

The T* coatings and 6 elements promise outstanding flare control.

Specifications

Per Zeiss. See the datasheet.

Zeiss ZM 50mm f/1.5 C-Sonnar
Focal length: 50mm
Aperture scale: f/1.5 - f/16, 1/3 stops
Focusing range: 0.9m - infinity
Angular field, diag./horiz. 45.7°/38.4°
Coverage at close range: 37 cm x 55 cm
Image ratio at close range:            1:15
Number of elements/groups: 6 elements in 4 groups
Filter thread: M 46 x 0.75
Weight: 250g
Dimensions (with caps): ø 56 mm, length 63 mm

Distortion

The wave distortion is mostly pincushion, reversing to barrel distortion near frame edges.

However, the total distortion is only about 0.5%, unsually low for a 50mm lens, and thus likely to go unnoticed with the majority of images.

Distortion of the Zeiss ZM 50mm f/1.5 C-Sonnar

Conclusions

Not yet tested.

OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3


Dual Thunderbolt 3 ports
USB 3 • USB-C
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3
OWC Thunderblade Thunderbolt 3 SSD
Gen 2!

Blazing fast, 1TB, 2TB, 4TB, 8TB.

Lloyd’s all-time favorite SSD!

√ No more slow and noisy hard drives!

MacPerformanceGuide.com

View all handpicked deals...

Pelican 3rd-Generation 1910B LED Flashlight (Black)
$30 $15
SAVE $15

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.