Kepler KL400 FI
Kepler KL400 FI


Kepler KL400 FI

Regular price
$ 13,160.00
Sale price
$ 13,160.00
Unit price

This item is a Special Order from the Manufacturer

Special Order


  • USB3.0 (3 Gbps)
  • Optional QSFP (8 Gbps)
  • Broadband AR Coated Window - (Transmissivity Curves)
  • Liquid and/or Air Cooled
  • Deep Cooling (up to 60°C below ambient)
  • Optional Anti-Dew Technology (ADT)
  • LDR and HDR modes
  • Small Footprint (4 x 4 x 4.2 in.)
  • Reaches operating temperatures in 5 minutes!
  • Support for up to 35 channels
  • View Kepler Overview pdf


    The Kepler KL400 sCMOS camera represents the first release in a new family of Scientific CMOS cameras from Finger Lakes Instrumentation. The KL400 provides high sensitivity, ultra-low noise with high frame rates, all at a game-changing price to performance ratio.

    The Kepler Series is a giant step forward in throughput, providing faster digitization, higher speed interfaces, and up to 35 channel readout. Sensors to be supported include front and back illuminated sCMOS, interline transfer CCDs, and EMCCDs.

    Kepler’s Low Dynamic Range (LDR) mode reads the image once and digitizes it to 12-bits. The user has eight gains to select from in LDR mode. Adjusting the gain affects full well size, dark current growth, and linearity.

    The High Dynamic Range (HDR) mode reads the pixels twice, digitizing through different amplifiers with different gains. (Unlike CCDs that only read the charge from each pixel once, CMOS sensors can measure the charge multiple times.) The two images are merged to create a 16 bit image with the linearity of a single image, thus allowing an HDR image to show detail in both low-count and high-count areas of an image. Because of the additional read time, the maximum HDR frame rate is half that of the LDR mode.

    The Kepler camera also features a Low Dark Current (LDC) options for both LDR and HDR. When used, the LDC option minimizes dark current at the expense of reduced full well capacity. For short exposures where dark current growth is not a problem, LDC is not generally used. Standard modes (not LDC) provide the highest full well capacity and widest dynamic range. On the other hand LDC mode is very useful for imaging dim objects that require very long exposures where dark current growth can be significant.

    The following may be useful in making the decision on which mode is most appropriate:

    Choose LDR mode for required frame rate greater than 24 FPS (exposures <42 ms).

    Choose HDR mode for a dynamic range greater than 0 – 4095 counts

    Choose LDC when your exposures are sufficiently long that dark current growth uses a significant percentage of full well capacity. (Also cool sensor to lowest possible operating temp.)

    Do not choose LDC for short exposures.



    KL400 FI Sensor Specs
    Sensor: GPixel GSense400
    Pixels: 2048 x 2048
    Pixel Size: 11 μm
    Full Well Capacity: 120000 e-
    Dynamic Range: 96 dB HDR
    Sensor Diagonal: 31.9
    Video Size (inch): 2.0
    Color Options: Monochrome
    Sensor Type: Front Illuminated
    Shutter Type: Rolling
    Sensor Grades: Grade 1
    KL400 FI Performance
    Camera Spec Sheet: PDF
    Digitization Speed: 24 fps HDR
    Typical System Noise: 1.5 e- HDR
    Typical Maximum Cooling: 45ºC Below Ambient
    Typical Dark Current: <0.15 e-/pixel/sec @ -20ºC
    Typical Non linearity: <1%
    Lens Mounts: Optional Nikon F-Mount or Canon EOS mount
    Available Shutters: Optional 45 mm
    All Kepler Cameras
    Housing Dimensions: 4.0 x 4.0 x 4.17 (101.6 x 101.6 x 105.9)
    Focal Plane to Faceplate: 15.53 mm (optical; no cover slip)
    Weight: 3.0 lbs.
    Interface: USB 3.0
    Temperature Stability: 0.1ºC
    Remote Triggering: Standard
    Shutter MTBF: 1,000,000
    Power: 12V (100-240V AC to 12V DC power supply included). With TEC off: <1A. TEC at 100%: 4.4A. (Optional Electromechanical Shutter open: 4A pulse for 100msec. Shutter held open, add 0.22A.)
    Environment: -30ºC - 45ºC | 10% - 90% Relative Humidity

    Personal Upgrade Path

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