On the rooftop of ALPA's Zurich facility, PhaseOne's new IQ4 150 MP back was being tested with the ALPA 12 PLUS.
Lhe test of the Phase One IQ4 150 MP with the RODENSTOCK / ALPA HR ALPAGON 5.6 / 70 MM, LB lens, focused at infinity, an ISO 50, and an exposure of 10s leaves no doubt; the result is amazing, sharp details even without using focus mask.
In addition, thanks to the new construction of the Phase One IQ4 150MPTEST sensor: ALPA 12 PLUS + IQ4 150MP + different lenses, we avoid having to carry out the colour correction that usually affects, with certain optics, backs with previous sensors.
While it is true that these colour aberrations are easily corrected thanks to the application of a LCC (Lens Cast Correction) filter during image processing, it is true that avoiding this step thanks to the new technology of the Phase One IQ4 150 will make the moment of capture less cumbersome.
Below, you can see how different lenses work with a pre-IQ 4150 backing and the current backing.
IQ3 100MP - ALPA 12 PLUS - SCHNEIDER / ALPA APO-SWITAR 5.6/36 MM, LB
IQ4 150MP - ALPA 12 PLUS - SCHNEIDER / ALPA APO-SWITAR 5.6/36 MM, LB
IQ3 100MP - ALPA 12 PLUS - SCHNEIDER / ALPA APO-SWITAR 5.6/36 MM, LB -
IQ4 150MP - ALPA 12 PLUS - SCHNEIDER / ALPA APO-SWITAR 5.6/36 MM, LB - Shift 16mm
The cleanliness of the images, at first glance, is unparalleled.
The Phase One IQ4 150 back is fully compatible with the ALPA system.