Topcon Healthcare empowers providers with advanced imaging, diagnostic solutions and intelligent data technology, offering a more fully integrated approach to diagnosis and treatment in eyecare.


Digital Slit Lamp

The SL-D4 is part of Topcon’s D-Series Digital Slit Lamps. It can be used as a conventional examination instrument or with the several imaging options. SL-D4 has the same product features as SL-D2, except for the magnification. SL-D4 slit lamp has two more magnifications: 6x, 10x, 16x, 25x and 40x.

Used as a conventional examination slit lamp, the SL-D4 incorporates three filters: a blue filter, red free filter and an amber filter. The amber filter improves the contrast and colour of retinal images.

Key Features

  • Five magnifications: 6X, 10X, 16X, 25X, 40X
  • Optimal clarity, colour resolution and depth-of-field
  • Compact and easy to use
  • Halogen light source
  • DC-4 Digital camera compatible
Type Galilean type
Magnification Selection 3 step by drum rotation
Eyepiece 12.5x
Magnification Step 6x / 10x /16x /25x / 40x
Magnification Ration (Field of View) 6x (φ35.1mm)
10x (φ22.5mm)
16x (φ14.1mm)
25x (φ8.8mm)
40x (φ5.6xmm)
Diopter Adjustment Range -5D to +5D
Slit Width
Continuous from 0 mm to 14 mm (14 mm circle)
Slit Length
Continuous from 1 mm to 14 mm (14 mm circle)
Aperture Diameter φ14, 10, 5, 2, 1, 0.2 mm
Slit Direction Side swing
Filter Blue, Red-Free, Amber, UV Cut (normal use), IR Cut (normal use)
Illumination Lamp Halogen

Not Available

Not Available


Topcon DC-4 Digital Camera

BG-2GN Background Illumination

Yellow Filter

Observation Tube

PG-1 Patient Grip

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