Externally, only the type designation "75" hints at the power that is contained within. As you might expect, however, its internal features once again vigorously raise the standards for mobile high-end digital backs.
The Sinarback eMotion 75 thus provides continuous image sequences of up to 160 exposures. This is made possible by a unique memory of 6 GB that is incorporated into this back, which is ready to store fresh image data approximately every 1.5 seconds. As soon as the shutter release button is no longer activated, the images are transferred to an interchangeable CF card at a rate of more than 16 MB/s.
The sensitivity of the 6668 x 4992 pixel CCD can be set for a value between 50 and 400 ISO. That ensures that difficult lighting situations can also be mastered without problems. File sizes of up to 190 MB provide sufficient latitude for even the most demanding output formats, so that subsequent, unexpected assignments can be handled without complex reshootings. The desire and the objective of the photographer is to be able to handle as many different exposure situations and assignments as possible with a single digital back – regardless of whether it is to be used with a medium-format or a view camera. Only then does it become possible also to master the commercial aspect of an assignment with economic efficiency. With the Sinarback eMotion 75, Sinar once again increases the flexibility and the performance capabilities of its systems for the professional.
The active and usable surface of the sensor is still 48 x 36 mm as it is in the Sinarback eMotion 54 or eMotion 22 (more than twice the size of the sensors used in 35 mm cameras). The pixel size is 7.2 microns, which is smaller than the pixel size in the eMotion 54. The smaller pixel size leads to much better Moiré characteristics, while at the same time raising the performance capabilities of this back in advanced wide-angle and view camera applications. This is the compelling consideration that led Sinar to select this 33 million pixel sensor for the Sinarback eMotion 75.
Pixel sizes that are even smaller would provide greater resolution, but this would be at the expense of image dynamics and speed. These criteria play an inc reasingly important role in virtually all other fields of object photography. In addition, only Sinar guarantees that the performance capabilities of the new generation of sensors can be applied to the optical-physical camera system for optimized digital image data without compromises.
Technical Data
Digital camera back for 1-shot exposures with all types of light sources
Active sensor size: 48.0 x 36.0 mm
Sensor resolution: 6668 x 4992 pixels, 33 million pixels
CCD pixel size: 7.2 µm
File size RAW: 64 MB
File size RAW, compressed: 32 MB
File size at 48 bit TIFF: 190 MB
Image capturing rate: Up to 40 images per minute
Live image view finder: Yes (only with eMotion 75 LV)
Shutter speeds: 1/10000 to 4 seconds; long time exposures: 4 to 32 seconds
Dynamic range (contrast): 12 f-stops
Digitalization: 48 bit (16 bit per color channel)
Nominal sensitivity: ISO 100 (adjustable from 100 to 800)
Interface: 1x IEEE 1394A Firewire
Power supply: Alternatively via Firewire or interchangeable lithium-ion battery
On-board battery operating time: Up to 3 hours or approximately 250 exposures
On-board data storage:
Solid-state memory 6 GB (for up to 85 uncompressed or 160 compressed images)
Optionally and additionally on interchangeable UDMA Compact Flash Card of up to 16 GB
On-board monitor: 2.5", 16 million colors
Information on display: Images, histogram, sensitivity, battery condition, exposure warning, memory status, white balance
Operation mode: Alternatively untethered (data storage onboard) or tethered (data storage via Firewire cable directly on hard disk)
Functionality: Sensitivity, White balance, Zoom up to 1:1, Resolution, compression, language selection (Chinese, English, French, German, Italian, Japanese, Korean, Spanish)
Exposure software: Sinar CaptureShop™ as of Version 5.5 and Sinar eXposure™ as of version 6.01
Dimensions: 92 x 81 x 71 mm
Weight: 600 g
Computer requirements (recommended): Apple Macintosh G5, Core Duo, or Core 2 Duo >1.8 GHz, with OS 10.4.9 and higher, 1 GB RAM, IEEE 1394a Interface
