Keeler Symphony Q Series Digital Slit Lamp

Quick Overview

The Q series from Keeler Symphony - quality build and leading technology Slit Lamps with a contemporary design.

Aside from combined integrated camera and beam splitting functionality, the Q series Symphony Digital and Digital Ready Slit Lamp comes with a series of additional features for a technologically leading slit lamp. This includes a: 

1). background illuminator

2).  auxillary diffuser

3). blue filter 

4). integrated camera 

5). review mechanism on the dashboard 

The symphony Q series slit lamp enables Optometry practitioners to control the camera exposure and lamp illumination via the dashboard. They can then take the necessary images using the joystick camera trigger to freeze frame before scrolling through through the images and saving the best shots. External illumination can also be independently controlled to help maximise the level of contrast in the captured images.

The selected images of a patient's anatomical eye structures can then be immediately transferred to Keeler's 'Kapture Image and Patient Management' software with the use of a USB device. This stores the patient images and medical notes.

Keeler's Symphony Q Series Digital Slit Lamp comes with a number of software options. These include: 

1). Kapture Lite is a standalone system for still image capturing with live preview, image processing alongside import and export features and access to patient information via a central database. Kapture Lite is included with the Digital Camera upgrade package and the complete Digital Slit Lamp system.

2). Kapture Digital boasts all the features of Kaptue Lite as well as video capturing, measurements, network connectivity and multiple image printing options. This is ideal if you require review stations. 

3). Kapture View allows patient data and images to be viewed over the network. This option requires the Kapture review station.

4). Kapture View Plus includes file import, measure and multiup image printing. Again the Kapture station must be connected. 

Finally, Keeler's Symphony Q Series Digital Slit Lamp's ability to capture and process detailed images is leading the ophthalmic field. It's powerful imaging technology allows for: 

  • freeze frame review
  • Still capture and optional upgrade to video capture
  • Image import and export, compare
  • Colour balance, crop, zoom, split RGB and more
  • Annotate, flip, draw, invert colour
  • Sharpen, contrast, brightness and gamma control

Optical System


Galilean converging binoculars @ 8° or Galilean 0° parallel


Rotating drum change x6, x10, x16, x25 & x40 with 3 step or 5 step options


x12.5  Adjustment +/-8D 

Field of view:

34 mm, 22 mm, 14 mm, 8.5mm, 5.5 mm

Interpupillary distance:

49.0mm to 77.0mm (converging), or 38.0mm to 85mm (parallel)

Objective lens focal distance:


Objective lens convergence angle:


Slit Projection System & Base

Slit width:

0-12mm continuously variable (K & Q series) 0-14mm continuously variable (Z series)

Slit length:

12mm (1.0mm – 12mm continuously variable)

Aperture diameters:

0.2mm, 1mm Square, 2mm, 3mm, 5mm, 9mm and 12mm (14mm replaces the 12mm for the Z series)


Clear; red free; neutral density; diffuser; blue; IR heat
absorbing filter permanently installed in K and Q series only

Slit rotation K and Q series:

+/- 180° continuous with reference scale

Slit rotation:

360° continuous with reference scale

Slit vertical tilt (K & Q series):

0°, 5°, 10°, 15° & 20°

Base travel:

25mm Z-axis, 107mm X-axis, 110mm Y axis.

Horizontal fine adjustment:


Table top dimensions:

405 x 500mm

Fixation lamp:


Light source:

LED. 6V 20W or 12V 30W Halogen lamp option for K and Q series

Weight, Packed (approx.)

Slit Lamp, complete with table top:

26.0Kg (max), 90 x 58 x 45cm W x D x H (external)

Protection Against Ingress


Class II ME Equipment

Insulation between mains parts and the functional earth provide at least two means of protection.

Power Supply

Power supply unit:

Switch mode, (110V – 240V input) +/- 10% multi plug
compliant to EN60601-1 EN 61000-6-2, EN 61000-6-3

Power supply output:

12V DC: 2.5 amps must be IEC/EN 60601 compliant

Complies with:

Electrical Safety (Medical) BS EN 60601-1
Electromagnetic compatibility EN 60601-1-2
Ophthalmic instruments - Fundamental requirements
and test methods ISO 15004-1:2006
Ophthalmic instruments - Optical radiation hazard ISO







+10°C to +35°C

30% to 90%

800 hpa to 1060 hpa


-10°C to +55°C

10% to 95%

700 hpa to 1060 hpa


-40°C to +70°C

10% to 95%

500 hpa to 1060 hpa

Keeler-KAT-luxury-carrying-case KAT Aluminium carrying and storage case
Part #: 3414-P-7000
Keeler-Tonometer-doubling-prism KAT doubling prism
Part #: 2414-P-5001
T-type-guide-plate KAT T type guide plate
Part #: 2414-P-5032
R-type-post KAT R type post
Part #: 2414-P-5042
keeler-calibration-arm-assembly Calibration arm assembly
Part #: 2414-P-5005

Keeler Slit Lamp Q Series Product Brochure 



Keeler Slit Lamp Q Series Datasheet 



Keeler Symphony H Series Slit Lamp Instructions of Use



Keeler Slit Lamp Series Tech Spec 



Keeler Slit Lamp Range Brochure