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-   -   Setting backfocus with beamer (16x5.5 lens) (https://www.dvinfo.net/forum/jvc-gy-hd-series-camera-systems/128928-setting-backfocus-beamer-16x5-5-lens.html)

Claude Mangold August 28th, 2008 02:44 PM

Setting backfocus with beamer (16x5.5 lens)
Hi all,
We recently used a 720p beamer via component to set the backfocus, as no monitor was at hand. We didn't manage a sharp image at both focal ends !!
Is that because the image on the beamer is too large ( but same resolution as the Panasonic monitor we usually have) or because our stock lens is actually deficient ?
We used the Siemens chart from the lens manual.
Thanks !

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