gliderbee
18-Apr-2011, 02:58
I have a Fujinon 75mm SWD 5.6 lens, and I would like to use it on the Shen Hao HX57-IIAT. According to the Shen-Hao site, it has a minimum extension of 90mm ... Should this lens work on that camera, be it with a recessed lensboard ? In that case, do lensboards with enough recession exist (Copal 0) ?
FWIW, I have a Shen Hao (for sale right now) TZ45-IIA, that has a minimum extension of 110mm (according to the Shen-Hao site), but I can use my Schneider 90mm perfectly with a recessed lensboard, meaning I can focus at infinity (and shorter, of course) with a lensboard with 1.5cm recession, and I can even focus PAST infinity (meaning: I'm not at minimum bellows when focused at infinity with the recessed lensboard).
I don't understand this: 110mm - 15mm = 95mm. How come I can focus my 90mm while not even being at minimum extension ? It does work, and that's what count, but I would like to understand .. In fact, I can NEARLY focus my Fujinon 75mm at infinity, I miss only a few millimeter ..
Thanks,
Stefan.
FWIW, I have a Shen Hao (for sale right now) TZ45-IIA, that has a minimum extension of 110mm (according to the Shen-Hao site), but I can use my Schneider 90mm perfectly with a recessed lensboard, meaning I can focus at infinity (and shorter, of course) with a lensboard with 1.5cm recession, and I can even focus PAST infinity (meaning: I'm not at minimum bellows when focused at infinity with the recessed lensboard).
I don't understand this: 110mm - 15mm = 95mm. How come I can focus my 90mm while not even being at minimum extension ? It does work, and that's what count, but I would like to understand .. In fact, I can NEARLY focus my Fujinon 75mm at infinity, I miss only a few millimeter ..
Thanks,
Stefan.