Phase One A/S is a Danish company specializing in high-resolution digital imaging technology. The company develops camera systems and imaging solutions for aerial mapping and geospatial surveying, cultural heritage digitization, industrial inspection, security applications, space missions, and professional medium-format photography.

PODAS workshops (Phase One Digital Artist Series) is a series of worldwide photography workshops designed for digital photographers interested in working with medium format, high-resolution cameras. PODAS is a part of the Phase One educational division. Each attendee receives a Phase One digital camera system for the duration of the workshop.

On 18 February 2014, it was announced that UK-based private equity firm Silverfleet Capital would acquire a 60% majority stake in the company.

On 17 June 2019, Phase One A/S was once again sold, this time to the Danish investment company Axcel.

Products

Cameras In 2009, Phase One purchased a major stake in Japanese Mamiya and the two companies developed products together. Phase One's product line includes: Phase One XC Phase One XT Phase One XF Phase One 645DF+ (discontinued) Phase One 645DF (discontinued) Phase One 645AF (discontinued) Phase One iXM (aerial, surveillance and UAV operations) Phase One iXA (Aerial) Phase One iXG (Reproduction) Phase One iXR (Reproduction) Phase One iXU (aerial, surveillance and UAV operations) Phase One iXU-RS (aerial, surveillance and UAV operations) Phase One iXU-RS1900 (Fully self contained dual camera solution) Phase One iXM Phase One iXM-RS Phase One iXM-MV (Machine Vision) Phase One iXH (Reproduction) Phase One iXM-RC (Reproduction) Phase One iXM-SP (Made for Low Earth Orbit) Phase One iXM-GS (Global Shutter) Phase One iXM-FS (Fusion Shutter)

The Phase One 645DF+ and 645DF cameras are medium format cameras which support both focal plane and leaf shutter lenses with shutter speeds ranging from 1/4000s to 60 minutes and flash synchronization up to 1/1600 sec. Among the new features on the 645DF+ are: Fast and accurate auto focus especially in low contrast environments Custom focus fine-tuning adjustment Rechargeable Li-ion battery with up to 10,000 captures on one charge Rugged construction for high volume production use

The Phase One V-Grip Air vertical grip is compatible with the 645DF+/645DF. The V-Grip Air supports a Profoto Air flash trigger for wireless flash synchronization.

The 645DF+/645DF supports digital back interfaces including the IQ and P+ series digital backs as well as 3rd party digital backs from Hasselblad, Leaf and others.

In 2012, Phase One released two specialty cameras: iXR which is made specifically for reproduction and iXA which is made specifically for aerial photography. Both uses the 645 lenses as the normal 645 cameras. Main difference on this camera is they have no viewfinder and very few mechanical moving parts.

In 2013, Phase One signed a collaborative distribution agreement with Digital Transitions (DT) to deliver advanced digitization solutions for cultural heritage preservation imaging projects worldwide (Repro camera solutions). The range of Digital Transitions digitization equipment includes a multitude of reprographic benches, purpose-built reprographic cameras, specialized book copy stations, film scanning kits, and accessories that are designed to host the line of Phase One digital capture hardware and Capture One software.

In 2014, Phase One launched a medium format digital back with a CMOS/active pixel sensor: The IQ250. All Phase One digital backs launched prior to the IQ250 have sensors based on the CCD (Charge-coupled device) technology.

In 2015, Phase One introduced the XF camera system. It is a new digital camera platform, medium format system built with the intention to upgrade it over a series of updates throughout the product lifetime. At the same time, the IQ3 series digital backs were introduced. This included the IQ3 50MP based on the previous IQ250, the IQ3 60MP based on the previous IQ260 and the newly introduced IQ3 80MP which includes a new CCD (Charge-coupled device) sensor exclusive to Phase One.

In 2019, Phase One launched its IQ4 series of digital camera backs at 100MP to 150MP resolution (included with both the Phase One XF IQ4 150MP Camera (MSRP $51,990 without lens, 1 fps, DSLR) and the Phase One XT IQ4 150MP Camera (MSRP $56,990 without lens, 1 fps, mirrorless)), with the 150MP generating 120.26 x 90.19 cm (47.35" x 35.5") 16-bit color images at 300dpi.

In August 2025, Phase One announced a leadership transition. Long-serving CEO Henrik Håkonsson stepped down from his executive role and joined the company's board of directors. Arne Dehn, formerly CEO of STEMMER IMAGING, was appointed Chief Executive Officer effective 1 September 2025. At the same time, Casper Jensen was appointed Chairman of the Board*Plain Text

Lenses The 645DF / DF+ / XF is compatible with the following lenses: Phase One Digital focal plane lenses Schneider Kreuznach leaf shutter lenses Mamiya 645 AF lenses Mamiya 645 manual lenses (mechanical lens modification is required for the Phase One XF) Compatible with Hasselblad V and Pentacon 6 (via multimount adaptor)

Phase One

Focal lengthMaximum Aperture rangeDesignator Optical Construction Shutter speed Minimum focusing distance Filter thread Equivalent 35mm Focal Length Dimension Weight 28mm4.5–32AF Aspherical14 elements, 10 groups N/A 35 cm /1.15 ft Rear sheet filter / Optional LEE SW150 filter17mm136 x 90mm / 5.35 x 3. 54"886g / 31.01 oz. 1.9 lbs. 35mm3.5–22AF9 elements, 5 groupsN/A35 cm / 1.15 ft77mm22mm62mm x 84mm 2.4” x 3.3”480g 45mm2.8–22AF9 elements, 7 groupsN/A45 cm / 1.4 ft.67mm29mm49.5 x 77mm / 1.9 x 3"492 g. / 17.35 oz. / 1.1 lbs. 80mm2.8.5–22AF6 elements, 5 groupsN/A70 cm / 2.3 ft.67mm50mm51.5 x 80.5mm / 2 x 3.2"330 g. / 0.7 lbs / 11.6 oz. 120mm4–22 MF Macro9 elements, 8 groupsN/A40 cm / 1.3 ft.67mm73mm111 x 83mm / 4.4 x 3.25"835 g. / 1.8 lbs / 29.2 oz. 120mm4–22 AF Macro9 elements, 8 groupsN/A 0.37 m / 1.21 ft72mm73mm 107 x 91 mm / 4.2 x 3.6 "960 g / 2.12 lbs. /33.86 oz. 120mm5.6-22TS (Tilt/Shift)6 elements, 4 groupsN/A0.84m104mm72mm135 x 106 mm 150mm2.8–22 AF IF8 elements, 7 groupsN/A100 cm / 3.3 ft.72mm93mm120 x 85mm / 4.7 x 33"780 g. / 1.7 lbs / 27.03 oz. 75-150mm4.5-32AF Zoom11 elements, 10 groupsN/A1.00m / 3.3 ft.77mm47mm-93mm145 x 86mm 7 5.7 x 3.4"1114 g. / 2.5 lbs / 38.99 oz.

Schneider Kreuznach

Focal lengthMaximum Aperture rangeDesignator Optical Construction Shutter speed Minimum focusing distance Filter thread Equivalent 35mm Focal Length Dimension Weight 28mm4.5–32LS Aspherical14 elements, 10 groups 1/1600 35 cm /1.15 ft Rear sheet filter / Optional LEE SW150 filter17mm90 x 136mm / 3.5 x 5.5”1100g /2.43bs / 38.80 oz. 55mm2.8–32LS7 elements, 6 groups1/160045 cm / 1.47 ft.72mm34mm77.6 x 86.5mm / 3 x 3.4660 g / 1.3 lbs. / 21.15 oz. 80mm2.8–22LS6 elements, 5 groups1/160070 cm / 2.3 ft.72mm50mm64.4 x 86.5 / 2.5 x 3.4"500g / 1.1 lbs. / 17.6 oz. 110mm2.8–22LS6 elements, 5 groups1/160090 cm / 2.9 ft.72mm68mm83.3 x 86.5mm / 3.2 x 3.4"700g / 1.5 lbs. / 24.69 oz 150mm3.5–32LS5 elements, 5 groups1/1600150 cm / 4.92 ft.72mm96mm87.1 x 86.5mm / 3.4 x 3.4"652g / 1.43 lbs. / 22.99 oz. 240mm4.5–22LS IF8 elements, 8 groups1/1000170 cm /5.58 ft86mm149mm169 x 104.5mm / 6.7 x 4.1”1600g /3.53bs / 56.44 oz. 40-80mm4–32 / 5.6–45LS15 elements, 11 groups1/1600 0.60m / 1.97 ft.105mm25mm-50mm5.90 x 4.40 " / 150 x 111 mm4.1 lbs. / 1860 g / 65.60 oz. 75-150mm4–22 / 5.6-45LS11 elements, 10 groups1/16001.00m / 3.28 ft.95mm47mm-93mm172 x 105.5mm / 6.8 x 4.2”1800g / 3.96 lb / 63.49 oz.

Focal lengthMaximum Aperture rangeDesignator Optical Construction Shutter speed Minimum focusing distance Filter thread Equivalent 35mm Focal Length Dimension Weight 35mm3.5–32LS Blue Ring11 elements, 8 groups1/16000.5m / 1.64 ft105mm22mm111mm x 119mm, 4.4" x 4.7"1370g 45mm3.5–32LS Blue Ring10 elements, 7 groups1/160055 cm / 1.80 ft95mm28mm101 x 122.9mm /4.0 x 4.8” 55mm2.8–32LS Blue Ring7 elements, 6 groups1/160045 cm / 1.47 ft.72mm34mm77.6 x 86.5mm / 3 x 3.4660 g / 1.3 lbs. / 21.15 oz. 80mm2.8–22LS Blue Ring6 elements, 5 groups1/160070 cm / 2.3 ft.72mm50mm64.4 x 86.5 / 2.5 x 3.4"500g / 1.1 lbs. / 17.6 oz. 80mm Mark II2.8–32LS Blue Ring8 elements, 6 groups1/160070 cm / 2.3 ft.72mm50mm85.4 x 87.2 / 3.4 x 3.4"765g / 1.69 lbs. 110mm2.8–22LS Blue Ring6 elements, 5 groups1/160090 cm / 2.9 ft.72mm68mm83.3 x 86.5mm / 3.2 x 3.4"700g / 1.5 lbs. / 24.69 oz 120mm4–22 LS Macro Blue Ring9 elements, 8 groups1/160040 cm / 1.3 ft.86mm73mm111 x 83mm / 4.4 x 3.25"835 g. / 1.8 lbs / 29.2 oz. 150mm3.5–32LS Blue Ring5 elements, 5 groups1/1600150 cm / 4.92 ft.72mm96mm87.1 x 86.5mm / 3.4 x 3.4"652g / 1.43 lbs. / 22.99 oz. 150mm2.8–22LS IF Blue Ring8 elements, 7 groups1/16001.0m / 3.28 ft95mm96mm115 x 141.6mm /4.5 x 5.6”1.658g / 3.65 lb 240mm4.5–22LS IF Blue Ring8 elements, 8 groups1/1000170 cm /5.58 ft86mm149mm169 x 104.5mm / 6.7 x 4.1”1600g /3.53bs / 56.44 oz. 40-80mm4–32 / 5.6–45LS Blue Ring15 elements, 11 groups1/1600 0.60m / 1.97 ft.105mm25mm-50mm5.90 x 4.40 " / 150 x 111 mm4.1 lbs. / 1860 g / 65.60 oz. 75-150mm4–22 / 5.6-45LS Blue Ring11 elements, 10 groups1/16001.00m / 3.28 ft.95mm47mm-93mm172 x 105.5mm / 6.8 x 4.2”1800g / 3.96 lb / 63.49 oz.

Rodenstock Phase One XT compatible lenses

Focal lengthDesignatorMaximum Aperture range Glass manufacturar Shutter speed Filter thread 23mmHR Digaron S5.6–22 Rodenstock 1/1000 72mm 32mmHR Digaron W4–22 Rodenstock 1/1000 86mm 40mm TiltHR Digaron W4–22 Rodenstock 1/1000 67mm 50mmHR Digaron W4–22 Rodenstock 1/1000 67mm 70mmHR Digaron W5.6–22 Rodenstock 1/1000 58mm 90mmHR Digaron W5.6–22 Rodenstock 1/1000 72mm 150mmHO-S SB5.6–22 Phase One 1/1000 72mm

*In addition, any medium or large format lens which has sufficient image circle and resolution with the Cambo lens mount

Industrial lenses

RS Lenses compatible with iXM-RS

Focal length Maximum Aperture range Glass manufacturar Shutter speed Filter thread Weight 32mm 4–22 Rodenstock 1/2500 86mm 970g 40mm 4–22 Rodenstock 1/2500 67mm730g 50mm 4–22 Rodenstock 1/2500 67mm 800g 70mm 5.6–22 Rodenstock 1/2500 58mm 580g 90mm 5.6–22 Rodenstock 1/2500 72mm 1150g 110mm 4–22 Schneider-Kreuznach 1/2500 58mm 620g 150mm 5.6–22 Schneider-Kreuznach 1/2500 67mm 1150g 180mm 6.3–22 Rodenstock 1/2000 67mm 1400g

RSM lenses compatible with iXM

Focal length Maximum Aperture range Focus distance Glass manufacturar Shutter speed Filter thread Weight 35mm 5.6–22 Infinity Phase One 1/2500 58mm 540g 80mm 5.6–22 Infinity Phase One 1/2500 58mm 470g 80mm AF 5.6–22 3m to Infinity Phase One 1/2500 58mm 630g 150mm AF 5.6–22 10m to Infinity Phase One 1/2500 58mm 744g 300mm 8–32 10m to Infinity Phase One 1/2000 86mm 1900g

Lenses for iXM-MV NOTE: iXM-MV is also compatible with Schneider-Kreuznach medium format lenses

Focal length Maximum Aperture range Focus distance Glass manufacturar Shutter speed Filter thread Weight 60mm 4–22 334mm to Infinity Linos N/A 60mm 240g 100mm 4–22 570mm to Infinity Linos N/A M58X0.75 mm 340g 105mm 5.6–22 183mm to 241mm Linos N/A M43X0.75 mm 360g 105mm Float 5.6–16 100mm to 417mm Linos N/A M43X0.75 mm 360g

Digital backs

IQ4 series Model Sensor size Sensor type Resolution Active pixels ISO range Dynamic range (Extended Mode / Normal) Frames per Second LS/FP (IIQs FPS) Lens conversion factor Display Storage Host connection Released IQ4 150MP 53.4 × 40 mm CMOS 151 MP 16-bit 14204 × 10652 50–2560015/14.5 f-stops1.2 / 1.4 (2.5)1.03.2-inch 1.5-megapixel Retina-type multi touchscreenXQD and SD Card (CFExpress supported as of Firmware 8) USB-C, Ethernet and WiFi 2018 IQ4 150MP Achromatic 53.4 × 40 mm CMOS 151 MP 16-bit 14204 × 10652200–10240015/14.5 f-stops1.2 / 1.4 (2.5)1.0 2018 IQ4 100MP Trichromatic 53.7 × 40.4 mm CMOS 101 MP, 16-bit 11608 × 8708 35–12800 15 f-stops 0.7 / 1.4 1.0 2018

IQ3 series