Pentax as first DSLR?

Started Jul 17, 2013 | Discussions thread
audiobomber
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Re: K 85mm f1.8
In reply to yardcoyote, Jul 23, 2013

yardcoyote wrote:

I'm already thinking good thoughts about the Sigma AF 50 mm f 2.8 EX DG macro, shorter brother of the 70mm recommended above. Reviews tell me that's the equivalent of 80mm in 35mm-speak.

Not quite. You must have been looking at a Canon mount, their sensor is 1.6X crop,

50mm X 1.6 = 80mm equivalent focal length.

Pentax uses a 1.5X crop sensor: 50mm X 1.5 = 75mm equivalent FL.

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Dan

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