Thursday, January 18, 2018

SINARBACK eVOLUTION 86H and SINARBACK eXACT – IMAGE QUALITY WITHOUT COMPROMISE







Sinar, a division of Leica Camera AG, has two digital backs in their lineup which offer unsurpassed performance and color accuracy.  If your goal is to create digital images in highest quality, then rely on the Sinar Multi-shot digital backs. They provide much higher color resolution than one-shot backs – a clearly visible improvement, which cannot be achieved even with involved computer rework.

"It's easier to get the color you want by recording the color that's there."
Prof. Dr. Roy S. Berns, color expert at the Rochester Institute of Technology, USA
Photo: Roy S. Berns

In Multi-shot photography, each pixel is captured by every primary color. You achieve an unimagined level of color accuracy and intensity. In addition, moirĂ© will be prevented. Since there is no interpolation, there is no loss of definition either. The result is brilliant, sharp images of the highest quality.  The multi shot Sinarbacks make it possible to reproduce the entire color spectrum perceptible to the human eye with absolute precision.  With these backs  Sinar has redefined color accuracy in digital photography. In addition,since they eliminate  the need for time-consuming color corrections, they also save valuable time.  Applications, for instance, are the digitization of artwork, reprography, and scientific photography, all of which require very accurate color reproduction.

Detail from the painting "Mathilde Boscovits" by Friedrich Boscovits (1845-1918). © Regula Schmid

With the Sinarback eVolution 86H, 1- and 4-Shot captures can be taken with its 50 MPx sensor, and prints of up to 50 cm x 70 cm can easily be produced.

Thanks to a unique adapter concept, it takes only a few simple moves to mount a Sinarback on a wide variety of camera platforms, including other brands. In addition, you can use this digital back not only with a view camera, but also with medium format camera systems.

The Sinarback eXact opens up a whole range of possibilities for you – use it flexibly in any studio situation, from packshots to high-end photography.

With this digital back, you can create multi-shot photography with 4 or 16 shots, allowing you to get resolution of up to 192 megapixels! In addition, the Sinarback eXact has a built-in downscaling function. That means, if required, you can also take photographs at low resolutions of 12 or 24 megapixels. With one digital back you are ready for all applications.

The Multi-shot Sinarbacks are designed for reliable studio work. They avoid electronic components like displays, batteries and internal memory as they can produce heat that causes color noise. The dual cooling of the sensor secures consistently high-quality photography, even over long shootings.

For more information go to www.sinar.ch


Technical Data Sinarback eVolution 86H
Sinar eVolution86H schwarz

SENSOR TYPE
Dalsa FTF 6080C - RGB Mosaic Filter, Full Frame Technology

SENSOR SIZE
8000 x 6000 pixels, 48.0 million pixels, 48 x 36 mm

FILE FORMAT
DNG

FILE SIZE (RGB)
144 MB (8 bit), 288 MB (16 bit)

CAPTURING MODES
1- and 4-shot

EXPOSURE RATE
up to 13 images per minute

LIVE IMAGE
Available

EXPOSURE TIME
1/10000 to 32 seconds

NOMINAL SENSITIVITY
ISO 50 - 800

DIGITIZATION
48 bit (16 bit per channel)

FILE STORAGE
via Firewire on computer

ACTIVE COOLING
Available (with fan and Peltier)

POWER SUPPLY
Firewire 800

FIREWIRE INTERFACE
IEEE 1394b (800 Mbps)

compatible with IEEE 1394a (400 Mbps)

EXPOSURE AND WORKFLOW SOFTWARE
Sinar CaptureFlow

OPERATING SYSTEMS
Mac OS X 10.10 and higher

MINIMUM SYSTEM REQUIREMENTS
Apple Macintosh with Intel Core 2

Duo 2 GHz with 8 GB RAM

OPERATING TEMPERATURE
0 - 45° C / 32 - 113° F

DIMENSIONS AND WEIGHT
90 x 85 x 73 mm, 0.6 kg

CAMERA INTERFACE
Sinar p3/p2/p/x view cameras,

Sinar m, Hasselblad V/H, Mamiya

645 AFD, AFD II, 645 Super Pro TL,

any 4x5 view camera via Graflock adapter



Technical Data Sinarback eXact
multishot exact

SENSOR TYPE
Dalsa FTF 6080C - RGB Mosaic Filter, Full Frame Technology

SENSOR SIZE
8000 x 6000 pixels, 48.0 million pixels, 48 x 36 mm

FILE FORMAT
DNG

FILE SIZE (RGB)
up to 576 MB (8 bit), 1.14 GB (16 bit)

CAPTURING MODES
1-, 4-, and 16-shot (with Downscaling)

EXPOSURE RATE
up to 13 exposures per minute

LIVE IMAGE
Available

EXPOSURE TIME
1/10000 to 32 seconds

NOMINAL SENSITIVITY
ISO 50 - 800

DIGITIZATION
48 bit (16 bit per channel)

FILE STORAGE
via Firewire on computer

ACTIVE COOLING
Available (with fan and Peltier)

POWER SUPPLY
Firewire 800

FIREWIRE INTERFACE
IEEE 1394b (800 Mbps)

compatible with IEEE 1394a (400 Mbps)

EXPOSURE AND WORKFLOW SOFTWARE
Sinar CaptureFlow

OPERATING SYSTEMS
Mac OS X 10.10 and higher

MINIMUM SYSTEM REQUIREMENTS
Apple Macintosh with Intel Core 2

Duo 2 GHz with 8 GB RAM

OPERATING TEMPERATURE
0 - 45° C / 32 - 113° F

DIMENSIONS AND WEIGHT
90 x 85 x 73 mm, 0.6 kg

CAMERA INTERFACE
Sinar p3/p2/p/x view cameras,

Sinar m, Hasselblad V/H, Mamiya

645 AFD, AFD II, 645 Super Pro TL,

any 4x5 view camera via Graflock adapter



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Tuesday, January 16, 2018

AN IMPRESSIVE LEICA COMPETITOR – KODAK EKTRA





The following article relies largely on information obtained from Stephen Gandy'sCameraQuest.

 

It is a well-known fact that the Leica inspired quite a number of competitors to offer 35mm rangefinder cameras of their own.  Even today many of them are well known, like the Zeiss Contax, the Nikon and Canon rangefinder models and, of course, a whole number of blatant copies of the Leica.

A much lesser known competitor was the Kodak Ektra.  The Ektra was Kodak's only attempt to produce the best 35 camera. It was amazingly innovative with features that actually outshined the Leica and Contax cameras at that time.  The camera was introduced in 1941, but there was no market when re-introduced in 1948.  The $700 price was astonishingly high for that time and it must be assumed that it contributed to the demise of the camera at the end of 1948.

The Ektra offered a lot of new features, not found on other rangefinder cameras.

  • 1st 35 RF to have a parallax compensated finder!
  • 1st 35 RF to offer lens coating on all lenses
  • 1st 35 RF to offer interchangeable backs
  • 1st 35 RF to offer built in zoom finder
  • 1st 35 RF to offer lever advance
  • 1st 35 RF to use a film rewind lever

Besides its impressive features, the Ektra also had an impressive line of lenses, all rangefinder coupled, fully rivaling the best from Leica or Contax in the late 1930's.  Offered were a 35mm f/3.3, 50mm f/3.5, 50mm f/1.9, 90mm f/3.5, 135mm f/3.5, and 153mm f/4.5.  A 254mm f/4.5 was planned but never put into production.  UNLIKE the best lenses from Leica and Zeiss, all Ektra lenses were coated, a first for this large a lens lineup.  All lenses attached to the camera with a breech lock mount.

 

mvc-003f.jpg (62805 bytes)
Focusing was done with a knurled knob at the lower left of the lenses.

 
The interchangeable back

 
Besides the standard interchangeable backs, the Ektra also offered another very unusual feature,
a ground glass focusing back.

The rangefinder is unusually long, 4 1/8", in fact making it difficult to hold the Ektra without blocking the RF windows.  The viewfinder is almost exactly above the lens to lesson parallax problems.   The Ektra viewfinder zooms from 50mm to 254mm, complete with built in diopter adjustment.   An attachment fits over the finder to show the 35mm field.

mvc-015f.jpg (57803 bytes)    mvc-013f.jpg (54443 bytes)    mvc-014f.jpg (55363 bytes)

Left: The shutter release is on the upper left edge.  The little lever on the right is the 12 second delay self timer.  The high speeds from 1/25 to 1/1000 are set in the window with the knurled knob. The low speeds 1/10th to 1 second are set on the nearby outer wheel.
Center:  The automatic film counter.
Right: The larger wheel is the zoom setting for the finder, from 50 to 254.  The smaller wheel is the diopter adjustment for the rangefinder!

mvc-017f.jpg (46377 bytes)  mvc-018f.jpg (48520 bytes)
The rather large and robust rewind lever

mvc-030f.jpg (42792 bytes)  mvc-032f.jpg (37472 bytes)  mvc-033f.jpg (47363 bytes)
Other useful accessories included a Contax like close-up viewfinder for the 50/1.9, Left,
a Leica like right angle viewer, Center,
and a "High-Low Angle Finder" for waist level or above the head viewing, Right.

An improved version called Ektra II was planned and three of them are known to exist. They incorporated a built in lens for the 35mm focal length, and could mount a magazine back with a spring driven motor.


The Ektra’s premature demise unfortunately eliminated any further development and along with it any noticeable influence on other rangefinder cameras, including the Leica.  It is interesting to note that feature wise, even the market leader Leica did not catch up to the Ektra until the introduction of the Leica M3.  Even then some of the Ektra’s features were still an exclusive, like the interchangeable backs, the diopter correction of the viewfinder and the built-in zoom finder.  One can only wonder what the camera might look like if it had it survived in an updated version today.




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