If you're looking to replace or upgrade the objective lenses on your Olympus BX or CX microscope without the premium price tag of OEM parts, Accu-Scope offers a range of high-quality, budget-friendly options. While these lenses may not be 100% parfocal with your existing Olympus objectives, they provide excellent performance and compatibility for various applications.

🔍 Understanding Parfocality

A parfocal microscope maintains focus when switching between objectives of different magnifications. This means that once you've focused on a specimen with one objective, you can change to another magnification with minimal or no need for refocusing. While Accu-Scope objectives are designed to be compatible with Olympus microscopes, slight adjustments may be necessary when changing magnifications due to differences in parfocal distances.

🔩 What is an RMS Thread?

RMS (Royal Microscopical Society) thread is a standardized screw thread used to mount objective lenses to microscopes. It has a diameter of 0.8 inches (20.32 mm) with 36 threads per inch. This standardization ensures that lenses with RMS threads can be interchanged among various microscope brands that adhere to this specification, including Olympus and Accu-Scope.

🔧 Accu-Scope Objective Options

Accu-Scope provides a variety of RMS-threaded objectives compatible with Olympus BX and CX series microscopes. Some available options include:

• 10x Infinity Plan Achromat Objective: Offers a flat field of view and is corrected for No. 1 ½ coverglass.

• 20x Plan Semi-Apochromatic Objective: Provides superb color reproduction and a working distance of 2.10mm.

• 40xR Infinity Plan Achromat Objective: Features a spring-loaded bottom lens to prevent damage and a working distance of 0.36mm

These objectives are designed for the EXC-400 series microscopes but are compatible with Olympus CX and BX models. 

✅ Quality and Performance

Accu-Scope objectives are known for their durability and optical clarity. They are infinity-corrected and provide sharp, high-contrast images suitable for various laboratory applications. While they may require minor focus adjustments when switching magnifications, their performance and affordability make them a practical choice for many users.

Conclusion

Upgrading your Olympus BX or CX microscope with Accu-Scope objectives is a cost-effective solution that doesn't compromise on quality. With RMS-thread compatibility and a range of magnifications available, these lenses offer flexibility and performance for your microscopy needs.