Leaf (Israeli company) explained

Leaf
Type:Division of Phase One[1]
Foundation:Massachusetts, USA (1991)
Location:Kfar Saba, Israel
Industry:Digital imaging
Products:Digital backs

Leaf is an Israeli company that manufactures high-end digital backs for medium format and large format cameras. It was previously a division of Scitex and later Kodak, and is now a subsidiary of Phase One. In 1991, Leaf introduced the first medium format digital camera back, the Leaf DCB1, nicknamed ‘The Brick’, which had a resolution of 4 million pixels (4 megapixels). As of 2012, Leaf produces the Credo line of digital camera backs, ranging from 40 to 80 megapixels. Until 2010, Leaf also produced photography workflow software Leaf Capture.

Products

Digital camera backs

After Leaf's DCB, the digital backs evolved into two product lines, the Aptus and the (now discontinued) Valeo. The main difference is that the Aptus models have a 3.5-inch touchscreen, where the Valeos have no on-board display. The Valeos can still be used untethered by using the DP-67 software or the more recent WiView software on a Compaq iPAQ. The iPAQs are connected via Bluetooth with the digital backs. For untethered usage, you will need battery packs for both the Aptus and the Valeo, otherwise the back must be powered via a FireWire connection to a computer. The Valeo models need a Leaf Digital Magazine as well for untethered use, where the Aptus models have a Compact Flash slot.

Current models

Credo is the current generation of digital camera backs from Leaf, and the first Leaf back based on Phase One platform and not Leaf legacy platforms.Some of the changes are that the back no longer has a cooling fan, but instead makes use of passive cooling.Also to be noted is the new hi res capacitive touch screen which no longer require stylus pen.The back also boots in one second with Phase One OS. Previous Windows CE operating system took up to 10 seconds to reboot.

The differences between Credo and Aptus II:

ModelSensor SizeResolutionActive PixelsISO rangeDynamic rangeFrames per SecondLens conversion factorDisplayStorageHost ConnectionReleased
Credo 5044 x 33 mm 50 MP, 16 bit8280 x 6208100-6400 14 f-stops1.2 1.253.2-inch 1.5-megapixel Retina-type multi touchscreenCF up to UDMA 6IEE1394b FireWire 800 and USB32014
Credo 8053.7 x 40.4 mm 80 MP, 16 bit10328 x 776035–800 12.5 f-stops0.7 1.02012
Credo 6053.9 x 40.4 mm 60.5 MP, 16 bit8984 x 673250–80012.5 f-stops1.01.02012
Credo 4043.9 x 32.9 mm, 40 MP, 16 bit7320 x 548450–80012.5 f-stops1.2 1.252012

Aptus II models are very similar to corresponding previous Aptus models, with the notable differences:

The following table shows the models which Leaf still shows on their website as current models.[2] [3] [4]

ModelReleasedSensor SizeResolutionActive PixelsISO rangeDynamic range(f-stops)Seconds/FrameLens conversion factorDisplayStorageNotes
Aptus-II 12R201053.7x40.3 mm80 MP, 16-bit10320 x 775280-800121.51.03.5-inch touchscreenFireWire, CFRotating sensor
Aptus-II 12201053.7x40.3 mm80 MP, 16-bit10320 x 775280-800121.51.03.5-inch touchscreenFireWire, CF
Aptus-II 8201044x33 mm40 MP, 16-bit7360 x 556280-80012.81.33.5-inch touchscreenFireWire, CF
Aptus-II 7200948x36 mm33 MP, 16-bit6726 x 504050-800121.11.13.5-inch touchscreenFireWire, CF
Aptus-II 5200948x36 mm22 MP, 16-bit5356 x 405625-40012.91.13.5-inch touchscreenFireWire, CF

Discontinued Models

ModelReleasedSensor SizeResolutionActive PixelsISO rangeDynamic range (f-stops)Seconds/FrameLens conversion factorDisplayStorageNotes
Aptus-II 10R201056x36 mm56 MP, 16-bit9288 x 600080-8001211.03.5-inch touchscreenFireWire, CFRotating sensor
Aptus-II 10201056x36 mm56 MP, 16-bit9288 x 600080-8001211.03.5-inch touchscreenFireWire, CF
Afi-II 10200856x36 mm56 MP, 16-bit9288 x 600050-8001213.5-inch Tilt touchscreenFireWire, CF, Digital Magazine
Afi-II 7200848x36 mm33 MP, 16-bit6726 x 504050-800121.13.5-inch Tilt touchscreenFireWire, CF, Digital Magazine
Aptus-II 6200944x33 mm28 MP, 16-bit6144 x 462250-8001211.33.5-inch touchscreenFireWire, CF
Afi-II 6200844x33 mm28 MP, 16-bit6144 x 462250-8001213.5-inch Tilt touchscreenFireWire, CF, Digital Magazine
Afi 7200748x36 mm33 MP6726 x 504050-800123.5-inch touchscreen
Afi 6200744x33 mm28 MP6144 x 462250-800123.5-inch touchscreen
Afi 5200748x36 mm22 MP4056 x 535625-400123.5-inch touchscreen
Aptus 75s200648x36 mm33 MP6726 x 504050-800121.2, unlimited burst3.5-inch touchscreenFireWire, CF, Digital Magazine
Aptus 65s200644x33 mm28 MP6144 x 462250-800121, unlimited burst3.5-inch touchscreenFireWire, CF, Digital Magazine
Aptus 54s200648x36 mm22 MP4056 x 535625-40012.87, unlimited burst3.5-inch touchscreenFireWire, CF, Digital Magazine
Aptus 75200548x36 mm33 MP6726 x 504050-800121.7, 5 frames burst3.5-inch touchscreenFireWire, CF, Digital Magazine
Aptus 65200544x33 mm28 MP6144 x 462250-800121.5, 6 frames burst3.5-inch touchscreenFireWire, CF, Digital Magazine
Aptus 22200548 x 36 mm22 MP, 16-bit4056 x 535625-40012.9, no burst1.13.5-inch touchscreenFireWire, CF, Digital MagazineBluetooth
Aptus 17200543 x 32 mm17 MP, 16-bit3576 x 471625-400121.2, no burst3.5-inch touchscreenFireWire, CF, Digital MagazineBluetooth
Valeo 22wi200448 x 36 mm22 MP, 16-bit5356 x 405625-200122.3iPaqFireWire, Digital Magazine(+iPaq)Bluetooth
Valeo 17wi200443 x 32 mm17 MP, 16-bit3576 x 471625-200121.7iPaqFireWire, Digital Magazine(+iPaq)Bluetooth
Valeo 22200348 x 36 mm22 MP, 16-bit5356 x 405625-200122.3none (tethered only)FireWire, Digital Magazine
Valeo 17200343.2 x 31.7 mm17 MP, 16-bit3576 x 471625-50121.7none (tethered only)FireWire, Digital Magazine
Valeo 11200236x24mm11 MP, 16-bit4056x268450-20012none (tethered only)FireWire, Digital Magazine
Valeo 6200236x24 mm6 MP, 14-bit3150 x 2100125-25011.7none (tethered only)FireWire, Digital Magazine
C-MOST200236x24 mm6.6 MP, 16-bit3150 x 210011.33none (tethered only)
Cantare XY36x24 mm6 MP, 16-bit2048 x 307250-100none (tethered only)XY-Weave
Cantare36 x 24 mm6 MP, 14-bit2048 x 307250-100none (tethered only)1-shot
Volare36 x 24 mm6 MP, 14-bit2048 x 3072none (tethered only)3-shot
DCB II Live199640 x 40 mm4 MP, 14-bit2048 x 204825-20011.75none (tethered only)Leaf PCI, NuBus
DCB199240 x 40 mm4 MP2048 x 204825-20011.75none (tethered only)

Camera Mounts

The Aptus-II models are equipped with a specific mount to fit one of the following camera systems:

BrandType
Phase One645AF, 645DF (Same mount as Mamiya)
Mamiya645DF, 645AFD (I+II+III), RZ67 (Pro II), RZ Pro IId, RB67
HasselbladH-system
HasselbladV-system (not 200 or 2000 versions)
Leaf AFiAlso known as "Rollei Hy6"
Contax645AF
FujiGX680II, GX680III - not a Leaf mount; adapter available from 3rd party
BronicaSQA, SQAi, ETRSi (No longer made)

It is impossible to convert the mount of a digital back for a different medium format body via adapter or conversion plates, because the sensor would then not sit within the film plane (since the sensor needs to sit the same distance from the lens that the film would). Such conversion may be possible by sending the back to Leaf to be physically reconfigured, depending on the specific model.

Any mount can be used on view cameras by using the correct adapter plate, for example: Alpha, Arca, Cambo, Horseman, Kata, Linhof, Sinar, Toyo, Rollei X-Act2, and other via Leaf Graflok or third party adapters. This is because view cameras have an adjustable focal plane.

The AFI backs (in the Discontinued Models) are specifically designed to work with Sinar and Rollei systems.

Accessories

Leaf Digital Magazine

The Leaf Digital Magazine, or LDM, is a portable, small FireWire-powered hard drive that enables a digital back lacking a Compact Flash slot to be used untethered. There are three models, the 5GB, 10 GB and 20 GB. It can be mounted in the U-bracket, which can also contain two (smaller than normal) batteries. This U-bracket can then be mounted underneath the camera. There are short FireWire cables available to connect the LDM to the Leaf digital back.

Software

Capture One / Capture One Pro

See main article: Capture One. Capture One is a tethering software, Raw image format converter and workflow software which enables photographers to deliver ready-to-use images with adjusted color and detail. It is designed to create very high image quality and provides a series of tools created to match the professional photographer's daily workflow. Capture One replaced Leaf Capture as tethering and processing software for all Leaf Aptus and Aptus II backs.[5]

Leaf Capture

Image capture workflow software, available for Apple Inc. OS X and Microsoft Windows. Leaf capture is no longer developed, and is Replaced by Capture One for all Aptus and Aptus II models.

Note: From v11.2.9 on only supports Aptus models[6]

Leaf Capture Remote App / Server

Used together, allows browsing of your "Shots" folder on wireless devices (iPad, iPod Touch and iPhone). The app works via the device's wireless local area network connection with Leaf Capture Server running on a host computer [7]

Leaf WiView

Leaf WiView is an update of the DP-67 software. It is an application that enables you to have wireless control (via Bluetooth) over your Leaf imaging module to view and edit images on an HP iPAQ Pocket PC as you shoot.

Leaf DP-67

The Leaf DP-67 application on an HP iPAQ allows wireless remote communication with the Leaf Valeo digital camera back via Bluetooth.The advantages of large storage space for your images and full control over the capture process are maintained by the Leaf Digital Magazine and Leaf DP-67 (iPAQ) display and control devices.

Notes and References

  1. Web site: Leaf Imaging -- a new Phase One company . Phaseone.com. 2017-08-11.
  2. Web site: Mamiya Leaf Medium Format Digital Backs and Cameras. Leaf-photography.com. 11 August 2017.
  3. Web site: Mamiya Leaf Medium Format Digital Backs and Cameras. Leaf-photography.com. 11 August 2017.
  4. Web site: Mamiya Leaf Medium Format Digital Backs and Cameras. Leaf-photography.com. 11 August 2017.
  5. Web site: What's new - Phase One . 2010-06-05 . dead . https://web.archive.org/web/20100509165022/http://www.phaseone.com/en/software/capture-one-5-pro/pro-overview.aspx . 2010-05-09 .
  6. Web site: Mamiya Leaf Medium Format Digital Backs and Cameras. Leaf-photography.com. 11 August 2017.
  7. Web site: Mamiya Leaf Medium Format Digital Backs and Cameras. Leaf-photography.com. 11 August 2017.
  8. Web site: Phase One User to User Forum. Forum.leaf-photography.com. 11 August 2017.