According to a study
published by the American Association for the Advancement of Science, approximately 80% of those in North America live in ares where the Milky Way is no longer visible.
We found that about 83% of the world’s population and more than 99% of the U.S. and European populations live under light-polluted skies (that is, where artificial sky brightness at the zenith is >14 µcd/m2). Due to light pollution, the Milky Way is not visible to more than one-third of humanity, including 60% of Europeans and nearly 80% of North Americans. Moreover, 23% of the world’s land surfaces between 75°N and 60°S, 88% of Europe, and almost half of the United States experience light-polluted nights.
The countries with the populations least affected by light pollution are Chad, Central African Republic, and Madagascar, with more than three-quarters of their inhabitants living under pristine sky conditions. The countries and territories with the largest nonpolluted areas are Greenland (only 0.12% of its area does not have pristine skies), Central African Republic (0.29%), Niue (0.45%), Somalia (1.2%), and Mauritania (1.4%).
On the other side, the most light-polluted country is Singapore, where the entire population lives under skies so bright that the eye cannot fully dark-adapt to night vision. Other populations experiencing this level of light pollution are Kuwait (98%), Qatar (97%), United Arab Emirates (93%), Saudi Arabia (83%), South Korea (66%), Israel (61%), Argentina (58%), Libya (53%), and Trinidad and Tobago (50%); all of these countries have more than half of their inhabitants living under extremely bright skies.
Read the entire study at ScienceAdvances.com
As you are likely aware, in addition to the new equipment it offers, B&H also sells used camera equipment
. And right now, B&H has a pretty large selection of used Canon EF/EF-S lenses
available including many super telephotos.
Do you want a secondary or backup camera? B&H has a good selection of used Canon DSLRs
Buying used/older equipment is a economically attractive way to gain new capabilities in imaging. Most items qualify for a 90-Day B&H Used Warranty.
results from the Canon EOS 5Ds R
have been added to the Canon EF 20mm f/2.8 USM Lens Review
With a TDP popularity rank of 67 among Canon EF and EF-S lenses, the EF 20mm f/2.8 doesn't get a lot of love. Make some comparisons at 20mm
and see if you think it deserves better. B&H
has the Canon EF 20mm f/2.8 USM Lens
has the Vanguard ABEO Plus 363 Carbon Fiber Tripod
available for $209.99 with free shipping. Regularly $429.99. Product Highlights
- Load capacity: 35.27 lbs
- Legs individually adjust to 25, 50 and 80-degree angles
- Anti-spin center column
- Anti-shock ring
- Accessory hook and low angle adaptor
It looks like Canon will soon be offering the new EF-M 28mm f/3.5 Macro IS STM in EOS M3 and M10 kits in Japan (and possibly other regions as well). You can see the kits below.
According to Canon Japan, the EF-M 28mm f/3.5 Macro IS STM is slated for availability at the end of June with the Creative Macro kits following roughly a month later.
B&H carries the EOS M3
and EF-M 28mm f/3.5 Macro IS STM
with built-in LED light.
From Cokin: The dark side has never been so attractive. Hampstead, MD — June 14, 2016
— Only a few months after having introduced NUANCES Full ND filters – the best Neutral Density filters available, Cokin is proud to announce NUANCES Graduated Neutral Density (GND) filters.
Cokin states that their biggest challenge has been to adapt their coating technology to make it graduated. A nano-metallic alloy is gradually applied on both sides of a highly resistant tempered Schott Glass B270, renowned for its high transmittance and low reflection. The result is stunning neutrality, completely free of infrared pollution. Multiple NUANCES filters (GND or Full) can be stacked without color cast.
NUANCES GND filters are dedicated to landscape photography. When the dynamic range of film or the sensor is too narrow, they allow a balanced brightness between two parts of an image by efficiently keeping details in overly-bright part of a scene. GND filters effect cannot be reproduced in post-processing, where clipping is hard to recover. The transition between the dark and light areas is soft, making it easier to use in most situations.
NUANCES GND filters are designed to fit Cokin’s range of CREATIVE filter-holders, from M to XL sizes. They can be combined with other filters from the CREATIVE Filter System range for unlimited creativity. L and XL sizes to begin shipping in late June with M sizes to ship in late July. B&H
carries the Cokin NUANCES
line of ND filters.