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astrophotography

Stunning mosaic delves deep into spiral galaxy (picture)

As part of an experiment in stunning mosaics and data visualization, astrophotographer Robert Gendler used scientific data from the Hubble Legacy Archive and combined it with his own ground-based observations to assemble a photo illustration of the magnificent spiral galaxy M106.

Years of observations in WFC3 (which offers a unique combination of high sensitivity and wide spectral coverage), Hubble's primary camera, the Advanced Camera for Surveys (which offers three independent, high-resolution channels covering the ultraviolet to the near-infrared regions of the spectrum), and the Wide Field and Planetary Camera 2 have given scientists varied views and detailed pieces of … Read more

Canon 60Da tackles astrophotography after 7-year hiatus

The ceaseless succession of new Canon and Nikon SLRs has a certain predictability, but an unusual model came out of left field today: Canon's astrophotography-oriented EOS 60Da.

The 60Da is a close cousin to the Canon EOS 60D, a higher-end 18-megapixel model geared for enthusiasts. But the 60Da has one big difference: its infrared filter has been modified so it doesn't screen out so much "hydrogen-alpha" light, a deep-red 656.28-nanometer wavelength of light produced by excited hydrogen atoms.

By letting in about three times the amount of hydrogen-alpha red as a regular 60D, the $1,500 60Da can capture much better photos of energetic nebulae, Canon said. It's due to go on sale this month. … Read more