Empire State Building Fast Facts
Read CNN Fast Facts about the Empire State Building in New York.
Source: cnn.com
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Empire State Building Fast Facts
Read CNN Fast Facts about the Empire State Building in New York.
Source: yahoo.com
Ask HN: What entry-level telescope should I choose?
Learning how to setup tracking with a meh telescope and a sturdy mount is in my opinion more fun and more rewarding than just tracing with a DSLR tele lens. Unless you have a system with big enough magnification to start bumping into the real issues with stabilization and tracking, on a DSLR with an APS sensor that will start happening around 300/400 mm focal length and lenses that are good enough to start doing stacking with are more expensive than a meh telescope. Also it's better to start playing with a telescope sooner so that you get used to the particular problems of t...
Source: ycombinator.com