Downloads

Software, drivers, manuals and service documents for FLI cameras and accessories. Start with the guide below, then jump to your product.

Windows 11 notice: Recent Windows 11 security updates add a Windows Driver Policy that can stop the current FLI USB driver (fliusb64.sys) from loading, so FLI CCD cameras and filter wheels may not be detected. We are preparing a Microsoft-signed driver. Until it is released, Microsoft explains how to confirm the block and turn the policy off: see "How do I turn off the Windows Driver Policy?" at https://support.microsoft.com/en-us/windows/hardware/drivers/the-windows-driver-policy. The steps depend on which Windows updates you have installed and need administrator rights. Caution: Microsoft warns that turning off this policy reduces your device's security. If your PC needs the older steps, re-enable Secure Boot afterwards as Microsoft directs. Once our signed driver is available, install it and turn the policy back on. Questions? Contact our support team.

Which file do I need?

Kepler (CMOS) camera: install FLI Pilot V1.2.95 (Windows 10 or 11, 64-bit). Using a fiber (QSFP) link? Also install the PCIe QSFP driver. Using a CFW filter wheel with Kepler? Also install the FLI Software Installation Kit.
MicroLine, ProLine or Hyperion (CCD), CFW or CenterLine filter wheel: install the FLI Software Installation Kit, 64-bit (32-bit only for older PCs). Remove older versions first.
Using MaxIm DL, TheSkyX, ASCOM, INDI or LabVIEW? Install the driver above first, then see Third-party software.
Writing your own code? Kepler: Kepler Windows SDK 2.1.4 or Linux packages. All other FLI devices: FLI SDK 1.104.
Older or discontinued device? See Legacy products.
Aurora and Revelation camera control and capture app: Comet 1.1.14.
Not sure? Email sales@flicamera.com with your model and serial number.

CMOS cameras: Kepler (KL series)

Kepler requires Windows 10 or 11, 64-bit. FLI Pilot is for Kepler only.

Required add-ons: PCIe QSFP Driver (fiber only)
Manuals: Kepler Camera Manual · Kepler ASCOM Driver Manual · Kepler LabVIEW Manual · Window Transmissivity
Drivers: Kepler Camera ASCOM driver v.7.0.9700 (4.7 MB) · MatLab Driver (30 MB) · LabVIEW Tools (1.9 MB) (needs Microsoft VC++ redistributable)
Firmware (run the Firmware Updater v1.18 first): KL400 RevF · KL400 Rev10 · KL4040 v32 · KL6060 Rev B.
Developers: Windows SDK 2.1.4 (38 MB) · Linux 2.1.4 Ubuntu · Linux 2.1.4 Fedora · KL4040 Basic Example Code (79 MB) · ASCOM-Python Programming (1 MB)
Older versions: Linux 1.12.59 for CentOS 7

FLI Aurora and Revelation CMOS cameras are supported via Comet and the libfli SDK (see Developers).

Aurora and Revelation (CMOS): Comet 1.1.14

Comet is FLI's new camera control and image capture software for Aurora and Revelation cameras. Runs on Windows 10 and 11.

Download Comet 1.1.14 (zip, 28 MB)

Install: 1) Download and unzip. 2) Connect your camera to your PC. 3) Run FLIComet.exe; the scripting guide is SCRIPTING.md in the zip.

CCD cameras: MicroLine, ProLine, Hyperion

Older 32-bit PCs: 32-bit kit. (Windows XP/Vista/7/8/8.1/10)
Manuals: MicroLine · ProLine · Hyperion · FLIGrab Startup Guide
ASCOM: covered by the Kepler ASCOM driver (per current site text).

Filter wheels: CFW, CenterLine

High Speed Filter Wheel (HS-625 / HS-632 / HS-1025 / HS-1032): User's Guide
Manuals: CFW User's Guide · CenterLine User's Guide
CFW chain utilities: Chain Unite · Chain Separate

Focusers

Atlas Focuser: Install the FLI Software Installation Kit; for ASCOM, NINA or MaxIm, also install the FLI ASCOM driver (in the Kepler section).
Digital Focuser: FLI Software Installation Kit; ASCOM compliant.
Manuals are in Legacy products.

Shutters (maintenance)

Adjusting 65mm Shutter Spring Tension · Exercising Vincent 65mm: KL65 · ML65 · ProLine · MG63 Adjustment · MG63 Manual Operation

Developers: FLI SDK (all devices except Kepler)

Recommended: SDK Download 1.104

SDK Documentation · SDK Example Code
Windows Binaries 2.0.4 · Linux: Kernel Module 1.5 (kernel 4.18)
Older versions: Linux Kernel Module 1.3.2
Open source; license in each file header.

Third-party software

MaxIm DL/CCD: Read Me First → Plug-in 1.2.3
TheSkyX: plug-in ships with TheSkyX; Windows users still need the FLI Software Installation Kit.
ASCOM: see the Kepler ASCOM driver.
INDI: INDI website
LabVIEW: SDK works natively; integration help from Sixclear.

Legacy products

These products are no longer sold. Manuals stay available. Windows 10/11 compatibility is listed only where FLI engineering has confirmed it.

Product	Manual	Software	Windows 10/11
Atlas Focuser	Atlas Focuser User's Guide	FLI Software Installation Kit; ASCOM support stated on site	Contact support
Digital Focuser	User's Guide	FLI Software Installation Kit	Contact support
LDR	User's Guide	Contact FLI support	Contact support
Signa 550	User's Guide	Contact FLI support	Contact support
Signa 6xx-10xx	User's Guide	Contact FLI support	Contact support
Incite	User's Guide	Contact FLI support	Contact support

Need help with a legacy device? Email sales@flicamera.com with the model and serial number.

Service & returns

Return Instructions

RMA Form

Warranty terms

End Use Certificate Form

Standard T&C

Vendor T&C

Temporary loans (evaluation & loaner units)

FLI may lend equipment for evaluation or while your camera is being serviced. Loaned equipment stays the property of Finger Lakes Instrumentation and must be returned to FLI by the agreed date. Loans last 30 days; longer loans are considered case by case. Before a loan ships, complete the End Use Certificate Form and pick "Temporary loan." Equipment out for repair still goes through the RMA Form.