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Forum: Lens Clubs
05-11-2012, 10:49 PM
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Forum: Pentax K-5 & K-5 II
05-10-2011, 12:31 PM
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In some of my own research on this topic, the big key is avoiding star trails (unless you want them). The wider the lens the better. There's a formula...
600 ÷ focal length = exposure time (in seconds) to avoid star trails.
So for example... I shot some with the Samyang 14mm f/2.8 lens. It's effective focal length is 21mm on the Kx (the camera I was using at the time).
600 ÷ 21mm = 28.5 seconds.
So I shot at 30 seconds, wide open, ISO 1600 or 3200.
These aren't the most beautiful results, but it was my first attempt!
I'm looking forward to trying this again with the K-5... once I get a nice wide lens again :)
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Forum: Pentax K-5 & K-5 II
10-19-2012, 08:00 PM
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Have a great time with it, it's been hard for me to find fault with the K-5 that's for sure. Don't forget to try Film Reversal setting with your autumn colors, that can add amazing vibrancy to the leaves. Good luck with the night skies, that's something I want to try but haven't yet... still deciding whether to grab an O-GPS1 for those times.
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Forum: Pentax Price Watch
10-14-2012, 12:25 PM
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