Sekonic L-208 Twimmate Light Meter.
Small size, takes both reflective and incident readings. Uses one CR2032 Lithium battery (included).
I used this exclusively with my Yashica Mat for about a year until I got a different meter. Everything works as it should.
$75, plus shipping, CONUS only.
I prefer PayPal, but will accept other forms of payment that must clear before I will ship.
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