SORL 70mm biconvex lens

Product Description

SORL Space Optics Research Labs – 70mm Biconvex Lens in Aluminum Mount (f=380mm)

This is an authentic, vintage optical component from Space Optics Research Labs (SORL) of Chelmsford, MA—a legendary manufacturer of precision optics for aerospace, defense, and scientific research. The lens is professionally mounted in a black anodized aluminum cell with a post-mount stem, marked clearly with the SORL logo and focal length.

Key Specifications:

• Clear Aperture: 70 mm

• Focal Length: 380 mm (marked “f=38 cm”)

• f/#: f/5.4

• Lens Type: Symmetric Biconvex Singlet

• Material: High-grade Optical Glass (likely BK7 or equivalent)

• Coating: Uncoated (high visible/NIR transmission)

• Mount: Black anodized aluminum cell with retaining ring and ½” post stem

Why This Lens Is Special:

• Historical Provenance: A genuine piece from SORL, a renowned supplier for NASA and defense projects.

• Robust Mount: Ready-to-use mounted configuration saves time and cost.

• Large Aperture: 70mm clear aperture offers bright, wide-field views.

Recommended Applications:

• Handheld Magnification: Excellent as a large, sturdy magnifier for reading, inspection, or hobbies.

• Educational Demonstrations: Perfect for teaching optics, lens principles, or light focusing in classrooms.

• Prototype & Hobby Projects: Useful in DIY telescopes, projection systems, or photographic experiments where absolute optical perfection is not required.

• Collector’s Item: A tangible piece of American optical manufacturing history.

Note:

This lens is not suitable for high-precision imaging, laser work, or critical research due to its cosmetic surface marks. It is ideal for applications where these minor imperfections are acceptable.