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New Mac Pro?

Or iMac 5K or iMac Pro?
Consult with Lloyd ASAP before buying!


System configuration for CPU, GPU, memory, SSD, backup, RAID, optimizing performance, workflow.
For YOUR optimal workflow

Avoid costly mistakes in throwing money at the problem for less performance and/or buying the wrong machine for your own needs!

Remote screen sharing available for RAID, software configuration, etc.

More about 2019 Mac Pro vs iMac 5K vs iMac Pro...

Sigma 14-24mm F/2.8 DG DN Aperture Series @ 14mm: Teak Bench Closeup

This series from f/2.8 through f/11 evaluates the Sigma 14-24mm f/2.8 DG DN Art at 14mm for sharpness at close range as well as focus shift, bokeh and secondary color. Shot in pixel shift mode for absolute highest sharpness.

This is an important series to read/understand for using the Sigma 14-24 at 14mm for how it behaves for respect to focus shift.

Sigma 14-24mm F/2.8 DG DN Aperture Series @ 14mm: Teak Bench Closeup

Includes images up to full camera resolution from f/2.8 through f/11.

I am excited about the about $1399 Sigma 14-24mm F/2.8 DG DN, though not this particular sample so much as it is definitely less good on the left side than the right, which means it is “off” a little optically, e.g., lens skew. Optical designs can look great on the computer but real lenses have to be built, and production tolerances can make high performance designs that deliver the as-designed performance difficult to produce. Thus fantasy MTF charts often conflict with reality in a real lens. Another sample will arrive next week, and the best of the two I will test with on the Sony A7R IV). I plan on buying the about $1399 Sigma 14-24mm f/2.8 DG DN Art, and I will try a 3rd sample if necessary to get one that is top-grade as-built.

CLICK TO VIEW: Recommended Ultra Wide Lenses for Sony

f2.8 @ 1/13 sec pixel shift, ISO 100; 2019-09-03 19:25:51
Sony A7R III + Sigma 14-24mm f/2.8 DG DN Art @ 14mm RAW: LACA corrected

[low-res image for bot]

Save Big $$$$ on Memory for 2019 Mac Pro

Up to 65% better pricing than Apple

Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).



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