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4.0 Introduction to the IQ2 Series Digital Back
System Overview
The Phase One IQ2 Series Digital Back is designed to t on the Phase One
645DF+ as well as several other brands or models of medium format cameras.
The IQ2 Series include three dierent models; the IQ280, IQ260 and the
IQ260 Achromatic. The backs incorporate 80 and 60-megapixel sensors for
the IQ280 and two IQ260 models repectively. They also feature USB3 and
FireWire 800 connections facilitating the fastest possible tethered image
transfers speeds. All three models have a 3.2 inch touch display that features
1.15 megapixel resolution. The wide format display allows for a full 4:3 aspect
ratio VGA resolution image next to histogram, highlight warning, focus mask,
File Info, and touch controls. This touch screen display is complemented by
Phase One’s intuitive 4-button navigation.
Phase One’s patent-pending Sensor+ technology, built into the Phase One
IQ2 Series models, supports a variety of shooting conditions. Images can
be captured at full resolution or, using Sensor+ mode, switch instantly to
capture images with 20 megapixels* resolution at 4 times higher sensitivity,
up to ISO 3200.
The following section deals with generic features that are available in all
three IQ2 Series digital back models.
* The IQ280 produces 20 megapixel resolution and both the IQ260 and IQ260 Achro-
matic produce 15 megapixel resolution when the Sensor + mode is activated.