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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

Zeiss Milvus 25mm f/1.4 Stacking Examples: Glacier Canyon and Dana Lakes (Nikon D850)

Get Zeiss Milvus 25mm f/1.4 at B&H Photo.

Stacking using Zerene Stacker.

I’ve come across many a subject that simply could not be photographed in the way I conceived it: fully crisp where I wanted it so:. There was no way to capture it in a single frame because key areas would blur-out from lack of depth of field and diffraction. This applies particularly to subject matter at close range and/or extended near-far compositions.

These examples use focus stacking (Zerene Stacker) to deliver far more detail than is otherwise possible, even at f/11. Focus stacking is the only method by which adequate depth of field can be obtained in such scenes (while retaining strong contrast), f/11 being inadequate and f/16 far too damaging to contrast at all levels, from diffraction.

The Zeiss Milvus 25mm f/1.4 is ideally suited to focus stacking, with outstanding control of color aberrations, an f/1.4 aperture to nail the focus where desired for precision stacking, and a low level of focus breathing (change in focal length with focusing). Its 24mm focal length at f/9 - f/11 means that many scenes require only two frames for stacking.

Zeiss Milvus 25mm f/1.4 Examples: Dana Lakes

Includes images up to Nikon D850 45-megapixel resolution. Many have both color and black and white renditions. These examples took about an hour each to prepare.

Two Monoliths
f9 @ 1/80 sec focus stack 5 frames, ISO 31; 2017-10-31 14:52:52
NIKON D850 + Zeiss Milvus 25mm f/1.4

[low-res image for bot]
Iced over shallow pond, with hiker’s footprints traversing it
f9 @ 1/125 sec focus stack 3 frames, ISO 31; 2017-10-31 11:51:55
NIKON D850 + Zeiss Milvus 18mm f/2.8

[low-res image for bot]
Icy Creek
f9 @ 1/4 sec focus stack 4 frames, ISO 31; 2017-10-31 10:54:33
NIKON D850 + Zeiss Milvus 25mm f/1.4

[low-res image for bot]
Convoluted Uprooted Pine Tree Stump with Green Lichen
f8 @ 0.8 sec focus stack 7 frames, ISO 31; 2017-10-31 17:51:02
NIKON D850 + Zeiss Milvus 25mm f/1.4

[low-res image for bot]

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