When your lab needs an analyzer, the first fork is discipline: optical finishing and biological sedimentation testing rarely cross paths. Yet both of these used instruments are on the market now, with a $2,350.01 spread between them. The Essilor Kappa is an automatic lens edger aimed at prescription finishing, while the Diesse VES-MATIC EASY is an ESR / sed rate analyzer with a built-in printer. The right pick depends on whether you're running an optical lab bench or a biological research/training setting. Before you compare features, settle the discipline question first, because no amount of calibration can make an edger do sedimentation-rate testing.
Quick Verdict
If you need automatic lens edging and have repair resources, the Essilor Kappa is the only one that matches that role. If you need ESR testing for training or non-diagnostic research, the Diesse VES-MATIC EASY offers multiple ESR modes and a thermal printer at a much lower listed price. Neither unit is calibrated for direct clinical use, so your workflow matters.
At a Glance
| Analyzer | Listed Price | Price Bar | Intended Use | Condition | Notable Detail |
|---|---|---|---|---|---|
| Essilor Kappa Optical Laboratory Analyzer | USD 2,500.00 | Optical Laboratory | Used | Needs lens size calibration | |
| Diesse VES-MATIC EASY ESR Analyzer | USD 149.99 | Biological Laboratory | Used | Built-in thermal printer |
Where Each Product Wins
- Essilor Kappa wins if your priority is prescription lens finishing. The listing describes it as an automatic edger with reliable Gerber Coburn quality, and the higher listed price reflects a more substantial piece of equipment. The catch is the calibration work and as-is sale.
- Diesse VES-MATIC EASY wins if you need ESR determination across multiple modes, including random access. It includes a built-in thermal printer, OEM power supply, and original manual. The lower listed price makes it a less expensive entry point, but the unit is explicitly not QC'd or calibrated for clinical use.
Essilor Kappa Optical Laboratory Analyzer
The Essilor Kappa is a used Gerber Coburn automatic lens edger aimed at optical lab work. It powers on and functions, but the listing notes it currently needs lens size calibration and is sold as-is. For a technician familiar with Gerber Coburn equipment, this could be a serviceable calibration project. It's described as clean and shown in photos. The main limitation is the calibration requirement and the as-is condition, so you need to be prepared for repair before production use.
Diesse VES-MATIC EASY ESR Analyzer
The Diesse VES-MATIC EASY is a used ESR / sed rate analyzer that includes a built-in thermal printer, OEM power supply, and original operating manual. It has multiple ESR modes (I, II, II Random) and a backlit LCD. It powers on and navigates menus. The catch is that it is not QC'd or calibrated for clinical use, so it's intended for training, research, or non-diagnostic use. If your lab needs clinical-grade results, this isn't the unit.
Final Choice by Use Case
- Choose the Essilor Kappa if you're an optical lab that can handle a calibration project and wants automatic edging.
- Choose the Diesse VES-MATIC EASY if you need ESR analysis for training or research and prefer the lower listed price.
- For clinical diagnostics, neither listing is calibrated for that use, so keep your regulatory requirements in mind.
