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OWC ThunderBay 4
High capacity, high-performance fault-tolerant storage for photography and video.

Non-RAID or RAID-0/1/4/5/10.
Capacities up to 56 Terabytes!

More about OWC Thunderbay 4...

Hard drives or SSD.

Zeiss ZM 28mm f/2.8 C-Biogon T*

Last updated 2010-02-15 - Send Feedback
Related: Leica, Leica M, Zeiss Biogon, Zeiss ZM, Zeiss ZM 28mm f/2.8 C-Biogon

The Zeiss ZM 28mm f/2.8 C-Biogon (about $1005) is a relatively inexpensive 28mm lens of very compact dimensions and light weight.

Composing with the 28/2.8 Biogon can use the optional 25/28mm ZI viewfinder, or the built in frame lines of the Leica M9. The rectangular lens hood is also advised.

Image quality

Not yet tested.

MTF charts suggest that this lens has some field curvature, typical for a 28mm design.

Specifications

Per Zeiss. See the datasheet.

Zeiss ZM 28mm f/2.8 Biogon
Focal length:	28mm
Aperture scale:	f/2.8 - f/22
Focusing range:	0.5m - infinity
Angular field, diag./horiz./vert	75/65/46 °
Coverage at close range:	37 cm x 55 cm
Image ratio at close range:	1:16
Number of elements/groups:	8 elements in 6 groups
Filter thread:	M 46 x 0.75
Weight:	230g
Dimensions (with caps):	ø 53 mm, length 62 mm

OWC ThunderBay 6

High capacity, high-performance fault-tolerant storage for photography and video.

Non-RAID or RAID-0/1/4/5/10.
Capacities up to 84 Terabytes!

More about OWC Thunderbay 6...

Hard drives or SSD.

Distortion

The barrel distortion of the 28/2.8 Biogon is only about 1% by the far corners, excellent for a 28mm lens.

Distortion of the Zeiss ZM 25/2.8 Biogon

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

MPG discussion of OWC Thunderbolt 3 Dock

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"

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Sony Alpha a7R III Mirrorless Digital Camera Body with Accessories Kit
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