People are troubled when they tried to find lens and matched lens cam, the pair are rare to find these days, and the price always sky high, handheld 4x5 photography restricted by this, so called range coupled 4x5 almost vanished.
- Range coupled function needs no match lens cam.
- Any lens can be range coupled, no matter what camera used.
- Lens calibration needs no professional expert. one lens can be calibrated in 10 minutes.
Too excited! can not sleep at night.
an interesting discussion here: