Envi
Envi ZSL-50 Slit Lamp
Envi's premium five-magnification slit lamp, from 6x to 40x on a rotating drum, with a full filter set including yellow Wratten standard.
Overview
The ZSL-50 is the lamp for detailed examination on the Envi line. Five drum positions run from a 6x survey view to 40x fine inspection, apertures step from 0.2 mm to 14 mm, and the filter set covers clear, blue, neutral density, red-free, and a yellow Wratten filter as standard, a combination contact lens and dry eye practices will use daily.
Key capabilities
Convergent binocular microscope with 12.5x eyepieces
Five drum-selected magnifications from 6x to 40x
Continuously variable slit from 1.8 to 14 mm
Six apertures from 0.2 to 14 mm
Clear, blue, neutral density, yellow, and red-free filters
Yellow Wratten filter standard
Technical specifications
Figures below come from current Envi product material. Confirm configuration-specific details with us before purchase.
| Magnifications | 6x, 10x, 16x, 25x, 40x with 12.5x eyepieces |
|---|---|
| Field of view | 36, 22, 14, 9, and 5.6 mm |
| Working distance | 75 mm |
| Slit length | Continuously variable 1.8 to 14 mm |
| Apertures | 0.2, 1, 3, 5.5, 9, and 14 mm |
| Slit projection scale | 1.2x |
| Filters | Clear, blue, neutral density, yellow (Wratten), red-free |
| Base travel | 103 mm longitudinal, 100 mm lateral, 35 mm vertical |
Who this is a good fit for
If none of these describe your practice, it is probably not the right choice, and we will tell you that.
Detailed anterior segment and contact lens work
Dry eye exams that lean on the yellow Wratten filter
Practices that want 40x available in the lane
What to ask on a demo
A demo is worth more when you arrive with your own cases and a list of questions. Here is what we would raise.
- Examine at 6x and 40x to feel the full range
- Evaluate fluorescein work with the Wratten filter
- Compare against the HSL-20 for a second lane decision
How Blue River Medical supports the Envi ZSL-50 Slit Lamp
Equipment consultation and model selection
On-site or in-office demo
Installation coordination
Staff training
Workflow planning around your existing lane
Ongoing customer support and service coordination
Trade-in discussions when you are replacing equipment
We serve eye care practices across Colorado, Arizona, New Mexico, Wyoming, and Utah. Service and repair responsibility differs by manufacturer and model, so ask us what we handle directly and what we coordinate with the manufacturer. See service and maintenance for our general equipment service capabilities.
For the manufacturer's own material, see the official Envi product page.
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Ask about Envi ZSL-50 Slit Lamp pricing, schedule a demo, or start a trade-in conversation. We will come back with specifics for your practice.
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Call Us: (877) 707-5688