PhaseOne H 25 Getting Started

H 25

GETTING STA RT E D

Phase One A/S
Roskildevej 39
DK-2000 Frederiksberg
Denmark
Tel [phone]
Fax [phone]

Phase One U.S.
24 Woodbine Ave
Northport, NY 11768
USA
Tel [phone]
Fax [phone]

Notice

The name Phase One is a trademark of Phase One A/S.

The names Hasselblad, Mamiya and Rollei are registered
trademarks of their respective companies.

All specifications are subject to change without notice.

Phase One takes no responsibility for any loss or damage
sustained while using their products.

This manual ©2003, Phase One A/S Denmark. All rights
reserved. No part of this manual may be reproduced or
copied in any way without prior written permission of
Phase One.

Printed in Denmark.

Part #: 80035000

Table of Contents

1

1 I n t r o d u c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2 Special Phase One H 25 features . . . . . . . . . . . . . . . . . . . . .3

ISO Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Double exposure protection . . . . . . . . . . . . . . . . . . . . . . .4

IR filter on CCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Large format photography . . . . . . . . . . . . . . . . . . . . . . . .5

3 Getting ready for taking pictures . . . . . . . . . . . . . . . . . . .6

Mounting the viewfinder mask . . . . . . . . . . . . . . . . . . . .6

Mounting the H 25 on a Hasselblad Camera . . . . . . . . .7

Camera body specifics . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Hasselblad 553 ELX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Hasselblad 555 ELD . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Hasselblad 501 CM and 503 CW . . . . . . . . . . . . . . . . . . .11

Mamiya RZ67 Pro II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Cleaning the IR filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

1 Contents

H 25

Getting Started

2

1 Introduction

The Phase One H 25 single shot camera back is designed for
advanced photography applications with a need for
productivity, flexibility and the absolute best in image
quality.

The Phase One H 25 is able to capture large objects and still
reproduce the finest details. The rectangular formatted 22
megapixel CCD allows the Phase One H 25 to generate
image files that can be offset printed as large posters. The
CCD is mounted in Landscape orientation and practically fits
the horizontal area of a Hassleblad camera.

The ability to use the same software as all the Phase One
single shot camera backs and connect to a computer simply
by hot plugging allows the Phase One H 25 to integrate
perfectly with the productive and flexible workflow
appreciated by thousands of studios around the world.

The Phase One H 25 is based on the highly recognized Phase
One technology. This manual ”H 25 - Getting Started” only
describes features and functionality unique to the Phase One
H 25.

For a detailed guide to the application software, please refer
to the Capture One User Guide for Mac and PC.

2 Special H 25

Features

The Phase One H 25 can be mounted on a wide range of
cameras including Hasselblad 555 ELD, 553 ELX, 501 CM,
503 CW as well as Mamiya RZ67 Pro II and 4” x 5” view
cameras via an optional Phase One adaptor.

ISO Settings

The default film speed of the H 25 camera back is ISO 50.
However, this setting can be changed to ISO 100, 200 or
400 in the Capture panel of the Capture One application.

It is recommended to capture images using a film curve.
That is done by selecting the film curve in the Capture
panel of the Capture One software. Click the camera icon in
the icon bar and select: “Film Standard,”“Film outdoor” or
”Film extra shadow.”

H 25

Getting Started

3

H 25

Getting Started

4

Power management

The CCD on the H 25 constantly needs to be cleared from
previous data before an exposure. This requires some
power consumption. Situations can occur where this is not
convenient (i.e. in connection with Phase One portable
systems where the batteries will get drained too rapidly).
On electronically controlled camera bodies the power
consumption can be drastically reduced by setting the Low
power or Ultra low power mode inside the Capture One
Application (Please read the section specific for your
camera body to learn if you are able to use these settings.).

Double exposure protection

It is not possible to accidentially double expose the image
by capturing one image quickly after another when the
H 25 is used on a Hasselblad 555 ELD. The electronic
communication with the Hasselblad body ensures that the
H 25 is ready before allowing release of the next shot. On
other camera bodies not using the electronically interface
from the H 25, the user has to wait for the ready beep
signal before releasing the next shot.

IR filter on the CCD

The IR filter (Phase One TG1 Infrared cut-off filter) is
permanently mounted on top of the CCD.

The filter may not be removed for several reasons:

l The focusing of the H 25 camera back will be damaged.

l It is only possible to remount the filter without dust in

between the filter and the CCD if you have access to
special clean room facilities.

l The Phase One Product Warranty is terminated.

Large format photography

The Phase One H 25 can be used on most large format
cameras via the optional Phase One FlexAdaptor and supports
all mechanical shutters and the Horseman ISS electronic
shutter. To ensure optimal image quality, Phase One strongly
recommends shutters that can be fired twice within four
seconds. The first release of the shutter activates the CCD,
the second release takes the picture. If the time limit of four
seconds is exceeded, the camera gives a warning “beep”
followed by a “ready” signal. If for some reason it is not
possible to fire the shutter twice within the time limit, the
camera will send a time-out error message to the screen.

H 25

Getting Started

5

The Phase One FlexAdaptor

H 25

Getting Started

3 Preparing to take

pictures

Mounting the viewfinder mask

The image area of the Hasselblad camera body is approximately 6 cm
x 6 cm, wheras the image area of the H 25 is 48.9 x 36.7 mm.
Therefore, it is necessary to use the H 25 viewfinder mask. Remove
the protection tape from the mask and mount it beneath the original
focusing screen.

6

The viewfinder mask is
positioned in the
bracket that holds the
focusing screen. Please
refer to the Hasselblad
camera manual
instructions before the
focus screen is
removed.

After the Phase One
viewfinder mask is
positioned in the
bracket, place the
Hasselblad focusing
screen on top of the
mask and slide the
viewfinder top back
into place.

H 25

Getting Started

7

Mounting the H 25 on a Hasselblad camera

The H 25 is fully integrated with the camera body and acts
as a true part of the whole camera system.

It is important to ensure that the bottom part of the H 25
camera back is pressed well into the locking mechanism
before the upper locking mechanism is pressed together.

To avoid the H 25 accidentally being released from the
camera body, you can use the enclosed screwdriver to lock
the H 25 locking mechanism on the top of the camera back.

H 25

Getting Started

8

Camera body specifics

A sync cable is connected from the lens to the C-connector
on the camera back on all Hasselblad cameras.

The flash cable is then connected
to the F-connector on the
camera back.

FireWire connector

Flash cable connects
to the F-connector

Sync cable connects to
the C-connector

H 25

Getting Started

9

When using the H 25 on a Hasselblad motorized body (i.e.
Hasselblad ELX series or Hasselblad ELM series), a motor
cable is supplied to enable capture from the computer.

The cable is connected between the M-connector on the
H 25 and the DIN connector on the Hasselblad.

The motor cable is not needed when using the H 25 on a
Hasselblad 555 ELD body.

Motor cable

H 25

Getting Started

1 0

Hasselblad 553 ELX

Avoid using A or AS mode.

Please note that the Phase One H 25 should not be
mounted while the camera is set to mirror up (S or RS
modes). Also make sure that the lens is not jammed or
locked open on the “B” setting when connecting the flash
sync cable to the Phase One H 25.

Power Condition:

If you are using the Hasselblad 553 ELX you should set the

Camera power mode to ”Normal.”

It is possible to use Ultra Low Power mode on this camera
when using a motor cable and only using the capture
button inside the Capture One Application.

Hasselblad 555 ELD

When using the Phase One H 25 with a Hasselblad 555
ELD, the shutter release on the front of the Hasselblad
must be in the “Digital” position. If using the shutter
release is in the “Film” position you must make sure that
the Camera power mode is set to ”Normal” in the Capture
One application.

A motor cable is not required when using the camera on an
Hasselblad 555 ELD body.

H 25

Getting Started

11

Please note that the Phase One H 25 should not be
mounted while the camera is set to mirror up (S or RS
modes). Also make sure that the lens is not jammed when
connecting the flash sync cable to the Phase One H 25.

Power Condition:

If you are using the Hasselblad 555 ELD you should set the
Camera power mode to ”Ultra Low Power.”

Hasselblad 501 CM and 503 CW without winder

The Phase One H 25 also supports mechanical Hasselblad
cameras such as the 501 CM and 503 CW. These cameras
are operated in single shot mode via the shutter release
button or a standard cable release.

Please note that the Phase One H 25 should not be
mounted while the camera is set to mirror up.

Also make sure that the lens is not jammed or locked open
on the “B” setting when connecting the flash sync cable to
the Phase One H 25.

Power Condition:

If you are using a mechanical Hasselblad you should
normally set the Camera power mode to ”Normal.”

H 25

Getting Started

1 2

It is possible to use ”Ultra Low Power” mode on
Mechanical cameras, but precautions must be taken not to
trigger too fast and ”Mirror Up” is not supported when
using this setting.

To ensure capture reliability, we recomend that you look at
the green LEDs on the back of the camera back while you
slowly press the mechanical trigger on the camera body.

You can safely press the button all the way in the moment
the LEDs flashes.

Hasselblad 503 CW with Winder CW

If operating in mirror up mode, the mirror up mode has to
be set in the Capture One software. This is done on a Mac
by pressing command + M or on a PC by pressing CTRL + M
on the keyboard.

Please note that the Phase One H 25 should not be
mounted while the camera is set to mirror up.

Also make sure that the lens is not jammed or locked open
on the “B” setting when connecting the flash sync cable to
the Phase One H 25.

Power Condition:

If you are using a 503 CW winder you could set the Camera

power mode to ”Normal.”

H 25

Getting Started

13

Mamiya RZ67 Pro II adaptor:

Phase One offers an optional H 25 adaptor plate that
enables mounting and close integration with the the
Mamiya RZ67 Pro II camera.

The camera must be set to multiple exposures when using
this adaptor.

The multiple exposure selector (M) is located on the side of
the camera body just above the cocking lever with the film
back revolve switch (R). Move the selector to the M
position.

Mirror up operation is only recommended if using Mamiya’s
own double cable release.

H 25

Getting Started

1 4

The adaptor plate
connects to the Mamiya
body, and the switch
underneath is set to the L
position (locked).

Power Condition:

If you are using the Mamiya RZ Pro II adaptor you should

set the Camera power mode to ”Normal.”

It is possible to use Ultra Low Power mode on this camera,
but only when shooting using the capture button inside the
Capture One Application.

H 25

Getting Started

15

4 Maintenance

Cleaning the IR filter

When the Phase One H 25 camera back is not attached to a
camera, the camera back must be protected with the
protection plate. However, over time dust may accumulate
on the IR filter. This will degrade the image quality if not
removed.

Please follow the directions included in the CCD cleaning
kit in the H 25 package.

H 25

Getting Started

1 6

5 Technical Data

Phase One H 25 specifications:

Technology: Full Frame CCD

Color filter: Red, Green and Blue

Total pixels: 5,488 x 4,145

Effective pixels: 5,436 x 4,080

Effective size: 48.9 x 36.7 mm

Pixels size: 9 x 9 microns

Imager ratio: 4:3

Imager output: 48 bit (16 bit per color)

Antiblooming: 8 f-stops

Digital image

Color depth: 16 bit per color

Dynamic range: 12 f-stops

Single exposure: 5,436 x 4,080 pixels

24 bit RGB: 65 MB

48 bit RGB: 130 MB

64 bit CMYK: 173 MB

H 25

Getting Started

17

Two exposures: 5,436 x 7,991 pixels (FlexAdaptor)

24 bit RGB: 127 MB

48 bit RGB: 254 MB

64 bit CMYK: 339 MB

Basic sensitivity

ISO range: 50, 100, 200 or 400

System

Exposure time: 60 sec or more to less than 1/10000 sec.

Capture rate: 30 captures per minute

IR filters: Mounted on CCD

Orientation: Automatic rotation

Interface: Direct IEEE 1394/FireWire

®

architecture

Power: 8 - 33 Volt DC

Lighting conditions

Flash, tungsten, daylight, fluorescent, HMI

Data format & compression

Extended Phase One format, TIFF-RGB, TIFF-CMYK, JPEG,
HTML

Color Management workflows

RGB, embedded ICC profiles, CMYK

H 25

Getting Started

1 8

Operating conditions

Temperature: 0˚ to 50˚ C (32˚ to 122˚ F)

Humidity: 15 to 80 % RH (non-condensing)

Physical dimensions

Height: 99 mm (3.9”)

Width: 92 mm(3.6”)

Depth: 53 mm(2.1”)

Weight: 450 g. (1lb)

Computer platform

Mac OS X (10.2.3 or later)

Windows XP, 2000, Me, 98SE

Cameras supported

Hasselblad 500 series, including Hasselblad 555 ELD

Mamiya RZ67 Pro II via optional Phase One adaptor

View cameras (via optional Phase One FlexAdaptor):

Arca Swiss, Cambo 23SF, Rollei Xact, Linhof M679,

Sinar 4” x 5”, Linhof 4” x 5”, Arca Swiss 4” x 5”,

Toyo 4” x 5”, Horseman 4” x 5”, Cambo 4” x 5”,

Plaubel 4” x 5”

Certifications

CE