USM stands for Ultrasonic Autofocus Motor. These lenses offer manual focus override and fast, smooth and comparatively quiet ...
Astrophotographer Dan Zafra recently managed to capture rare red sprites flashing in the night sky with the Milky Way and glow from the Aurora Australis.
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Astronomers Release Awe-Inspiring Image of What Our Whole Galaxy Looks Like in Radio Waves
Astronomers from the International Centre of Radio Astronomy Research (ICRAR) have released an incredible image of the Milky Way shining in low-frequency radio light, revealing a spectacular realm ...
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