PhaseOne H 10 C645 Getting Started

H 10 C645

GETTING STARTED

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

Phase One
24 Woodbine Ave
Northport, New York 11768
USA
Tel [phone]
Fax [phone]

Phase One® is registered trademark of Phase One A/S

The names Apple Macintosh®, CONTAX®, Microsoft Windows® and Adobe
Photoshop® are all 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 ©2002, 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 #: 80014001

H 10 C645 Getting Started

Notice

H 10 C645 Getting Started

1 Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2 Special H 10 C645 features . . . . . . . . . . . . . . . . . . . . . . .3

Auto exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

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

Image orientation detection . . . . . . . . . . . . . . . . . . . . . . . . . . .4

IR filter on the CCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

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

Mounting the focusing screen . . . . . . . . . . . . . . . . . . . . . . . . . .6

Mounting the H 10 C645 on the CONTAX 645. . . . . . . . . . . . .7

Use of flash sync cabl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Operating the camera from a host computer . . . . . . . . . . . . . . .9

Use of sync cable for bulb exposures . . . . . . . . . . . . . . . . . . . . .9

4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Cleaning the IR filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Cleaning between the IR filter and the CCD . . . . . . . . . . . . . . .10

5 Current limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

TTL flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

1

H 10 C645 Getting Started

1 Introduction

The H 10 C645 is a single shot digital camera back
for the innovative CONTAX 645 camera. The CONTAX 645
utilizes a TTL phase difference detection type auto focus
system. Furthermore the CONTAX 645 provides auto expo­sure settings. The CONTAX 645 with a H 10 C645
back encourages all kinds of photographic uses from por­traiture and wide-angle photography to high speed shoot­ing to capture fast action with telephoto lenses.

The functionality of the H 10 C645 is well integrated
with the CONTAX 645 camera. The H 10 camera
back communicates with the CONTAX camera thought a
fast internal electrical computer interface. This exiting
direct digital solution is a result of a development project
fully supported by Kyocera.

The H 10 C645 is based on the highly recognized

Phase One technology. The application software for the
H 10 C645 is the same as for all Phase One single shot prod-

ucts. The Capture One User Guide is a general manual for
theese products. This Manual "H 10 C645 Getting Started"
covers only specific H 10 C645 features and
functionality.

2

H 10 C645 Getting Started

2 Special H 10

C645 features

Auto exposure

The CONTAX 645 can work in different auto exposure
modes. This is fully supported by the H 10 C645, which
communicates the equivalent film speed of the digital
back to the CONTAX 645 camera.

When capturing with auto exposure modes, exposure
times between 1/4000 sec. and 32 sec. can be obtained.
Please note that images captured with exposure times
longer than 2 sec. can be degraded because of increased
digital noise. The auto exposure of the CONTAX 645 cam­era use the ISO value set by the H 10 C645. The ISO
value set by the H 10 C645 corresponds to the sensi­tivity set in the Capture One application. The sensitivity
can be set to ISO 50, 100, 200 or even 400.

3

H 10 C645 Getting Started

Double exposure protection

With the C645 it is not possibly to accidentally double
expose the image by capturing one image quickly after
another e.g. when using continuos capture mode. The
H 10 communication with the CONTAX 645 is disabling
capture functionality in the camera when necessary.

Image orientation detection

The CCD in H 10 C645 is positioned in landscape orientation.
Whenever an image is captured in portrait position by
rotating the camera, an internal sensor detects this new
position and the image will appear with the correct
orientation in the Capture One application.

H 10 C645 Getting Started

Camera orientation: Images can be captured in all three
positions – and will appear with the correct orientation in
the Capture One application.

4

H 10 C645 Getting Started

IR filter on the CCD

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

The filter may not be removed for several reasons.

• The focusing of the H 10 will be damaged.

• 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.

• The Phase One Product Warranty is terminated.

5

H 10 C645 Getting Started

3 Getting ready for

taking pictures

Mounting the focusing screen

The image area of the CONTAX 645 is 41.5mm x 56mm.
The image area of the H 10 C645 is 24mm x 36mm.
A dedicated H 10 C645 focusing screen is provided.
This focusing screen has to be mounted instead of the orig­inal focusing screen. Refer to the CONTAX 645 Instruction
Manual "Replacing Focusing Screen" before the focusing
screen is mounted.

6

H 10 C645 Getting Started

Mounting the H 10 C645 to the CONTAX 645

The C645 is fully integrated with the camera house and
acts as a true part of the whole camera system.

When attaching the H 10 C645 to the camera house
it is important to ensure that the bottom part of the

H 10 C645 back is pressed well into the locking
mechanism before the upper locking mechanism is pressed

together.

To avoid that the H 10 C645 back is released by mis­take from the camera house, the enclosed screwdriver can
be used to lock the H 10 C645 locking mechanism.

Step 1

Step 2

Step 3

7

H 10 C645 Getting Started

Use of flash sync cable

No cables are required
between the H 10 C645
and the CONTAX 645.
Flash sync cable must be
connected to the CONTAX
645 camera house.

The flash sync cable may
NOT be connected to the
H 10 C645

.

8

H 10 C645 Getting Started

Operating the camera from the host computer

The supplied release cable must be connected between
the "M" connector on the H 10 C645 and the mini­jack connector on the CONTAX camera house.

Use of sync cable for bulb exposures

When using bulb exposure, a sync cable must be con­nected between the C connector on the H 10 C645 and
the flash connector on the CONTAX camera house.

9

H 10 C645 Getting Started

4 Maintenance

Cleaning the IR filter

When the H 10 C645 camera back is not attached to a
CONTAX camera, the camera back shall be protected with the
protection plate. Still dust particles can stick to the IR filter.
This will degrade the image quality.

The cleaning procedure for cleaning the IR filter is described

In the guidelines for the CCD cleaning kit, that came with
your camera back.

Cleaning between the CCD and the IR filter

10

Do not try to clean between the CCD and the IR filter!

The mounting of the IR filter is done at the factory in a high­class clean room. This process is a very specialized process that
assures an extremely high quality of the glass surfaces of the
CCD and the IR filter. The screws for locking the IR filter are
sealed. If the seal is broken, Phase One will not guarantee for
any particles between the CCD and the IR filter.

H 10 C645 Getting Started

5 Current limitations

TTL flash

Using TTL flash with the CONTAX 645 camera and the
H 10 C645 back, will result in 3 f-stop overexposure. When
using TTL flash, the exposure compensation on the flash unit
must therefore be set to –3 f stops.

11

H 10 C645 Getting Started

6 Technical data

• Single shoot camera back for CONTAX 645

• Electrical computer interface between the H 10 C645
and CONTAX 645

• Full support of dedicated lenses at all shutter speeds (1/4000 -
32 sec.)

• Electronic protections against double exposures

• Orientation sensor for correct display of landscape and portrait
images

Resolution: 3992 x 2656 pixels

Image modes . RGB, Grey or CMYK

Pixel depth: 3 x 8 or 3 x 16 for RGB

8 bit or 16 bit for Grey

4 x 8 or 4 x 16 for CMYK

Image area: 24.6 mm x 36.9 mm (1" x 1.5")

Computer connection: IEEE 1394

Power consumption: 7 Watt

Compatible strobe systems: See Section "Strobe Equipment"

in the Capture One
Users Guide

12