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05-09-2014, 09:08 AM   #1
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Pentax LX question: film speeds between clicks

I have been having a terrific time with my LX, recently refurbished by Eric. One of the films I'd like to try is Portra 160. The clicks on the dial for setting film speed don't include 160. Can one simply approximate by setting the dial in between clicks?

Advice gratefully appreciated.

James

05-09-2014, 09:14 AM   #2
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The ASA/ISO dial should be in 1/3 f-stop increments. ASA 200 - 1/3rd stop = 160 ASA. Just set it to the click below 200.

The manual can be download here (password = Pentax)
http://www.pentax-manuals.com/manuals/mf/pentax_lx_manual_s.pdf

See page 17.
05-09-2014, 09:14 AM   #3
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I would set it to 100 and underexpose by a half-stop, or 200 and overexpose by a half-stop.
05-09-2014, 09:33 AM   #4
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Many thanks! I seem to have been simply wrong about the click stops.

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