Focus shift on the Summilux 50 ASPH at f/2?

1. TH

   THTomás Herrera樓主

   #1 · 2026年10月14日

   At f/2 and f/2.8 my Summilux 50 ASPH focuses a touch behind at 1.5 m. Wide open it is spot on. Is this focus shift, or is my rangefinder off?

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2. IM

   IMInès Marchetti

   #2 · 2026年10月17日

   That is classic focus shift; the lens is calibrated wide open. Try the same test on a tripod at 1 m and 3 m.

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3. DL

   DLDaniel Li

   #3 · 2026年10月20日

   Mine does the same between f/2 and f/4. I focus a hair in front and stop worrying.

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4. RT

   RTRen Takahashi

   #4 · 2026年10月23日

   ↩ Inès Marchetti · #2

   the lens is calibrated wide open

   Right, and Leica will not fix it because nothing is broken. If it is behind wide open too, send the camera, not the lens.

   按讚 1回覆 #4