Latest or all posts or last 15, 30, 90 or 180 days.
Today’s Deal Zone Items... Handpicked deals...
$170 $130
SAVE $40

$1799 $1349
SAVE $450

$1399 $1049
SAVE $350

$150 $50
SAVE $100

$380 $340
SAVE $40

$489 $389
SAVE $100

$274 $174
SAVE $100

$400 $300
SAVE $100

$699 $499
SAVE $200

$1997 $1097
SAVE $900

$499 $499

$4500 $3500
SAVE $1000

$1000 $500
SAVE $500

$700 $600
SAVE $100

$1499 $699
SAVE $800

$700 $600
SAVE $100

$1499 $699
SAVE $800

$369 $200
SAVE $169

$1699 $1199
SAVE $500

$649 $449
SAVE $200

$1498 $998
SAVE $500

$999 $949
SAVE $50

$1099 $999
SAVE $100

$400 $300
SAVE $100

Upgrade the memory of your 2019 iMac up to 128GB
Apple 15" 2019 MacBook Pro
Only $2799 $1999

16GB / 512GB SSD / 2.3 GHz 8-core
Like new, refurbished.
macOS 10.14 Mojave, 90 day warranty.

Perfect for high-school or college student!

Shop all Firecracker savings...

Sigma 12-24mm f/4 DG HSM Art Aperture Series: Forest Stream (Nikon D810)

Sigma 12-24mm f/4 DG HSM Art

Get Sigma 12-24mm f/4 DG HSM Art and Sigma DG HSM Art lenses at B&H Photo.

See my reviews of Sigma DG HSM Art lenses at 20mm, 24mm, 35mm, 50mm and more.

This aperture series from f/4 through f/11 shows the total imaging quality of the Sigma 12-24mm f/4 DG HSM Art. The behavior is complex, and so this series should be of keen interest to anyone considering the Sigma 12-24/4.

A key aspect of image quality in practice is focus placement in a scene. This implies both that the photographer place focus wisely, including anticipating and compensating for a lens with focus shift, which requires special care based on the shooting aperture. This series discusses what is required for the Sigma 12-24/4.

Sigma 12-24mm f/4 DG HSM Art Aperture Series: Forest Stream

Includes images up to 28 megapixels along with many large crops, all from f/4 through f/11.

Never before have I been in Yosemite and experienced October temperatures a month later in mid-November. Not only would there usually not be water here, if it were here it would be solid ice. The heavy snows in October were followed by very warm temperatures in November, and this has resulted in very high flows approaching that of late spring, at least in this area. This is just a minor drainage usually containing water only in the spring. All over the area, evidence of very heavy overflows abounds, even here it can be seen that the water was much higher—and normally it is bone-dry. The trout are swimming around in the main creek very happily.

Lakes at 10,000 feet are open and clear; I have seen deep lakes with 18-inch-thick ice at earlier dates! Yet the perimeter of Saddlebag Lake and Ellery Lake have barely a trace of ice. Temperatures at night are running 15°F warmer than I had expected, allowing me snow-free access into this area at ~8200 feet elevation.

Unusual Free Flowing Water in mid-November
f9 @ 13.0 sec, ISO 64; 2016-11-13 18:02:25
NIKON D810 + 12.0-24.0 mm f/4.0

[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).

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.