Olympus NFK 2.5x LD Photo Eyepiece

The Olympus NFK 2.5x LD is a genuine OEM compensating photo/video projection eyepiece for Olympus BH2 upright microscopes and SZ/SZH stereo microscopes, providing 2.5x projection magnification for camera port imaging with chromatic aberration correction optimized for LB (long barrel) objectives.

• 📷 2.5x NFK photo/video projection eyepiece — magnifies the intermediate image 2.5x for camera port imaging and photomicrography
• 🔬 LD (compensating) design — corrects residual chromatic aberration from LB objectives for sharp, color-accurate camera images
• ⚙️ BH2 and SZ/SZH compatible — fits Olympus BH2 upright and SZ/SZH stereo microscope phototube ports
• 🏭 Genuine Olympus OEM — catalog no. 2-LC894, made in Japan, excellent condition with flawless optics
• 🎓 University purchase orders accepted

🔧 Product Description

The Olympus NFK 2.5x LD is a compensating photo/video eyepiece from the NFK series, designed for use with Olympus BH2 upright microscopes and SZ/SZH stereo microscopes. The NFK series are projection eyepieces that relay and magnify the microscope’s intermediate image to the camera sensor via the phototube port — the 2.5x magnification factor increases the on-sensor image size relative to the native intermediate image, providing higher effective magnification for camera documentation without changing the objective. The “LD” designation indicates a compensating design optimized for use with Olympus LB (long barrel) objectives, correcting the residual lateral chromatic aberration these objectives introduce to produce sharp, color-accurate images at the camera. The NFK 2.5x LD is one of the earlier NFK eyepiece variants and is particularly associated with BH2 and SZ/SZH era systems. Supplied as a genuine Olympus OEM component (catalog no. 2-LC894) in excellent condition with flawless optics.

🔎 Typical Applications

• Photomicrography and video documentation on Olympus BH2 upright microscopes
• Camera port imaging on Olympus SZ and SZH stereo microscopes
• Higher on-sensor magnification for fine specimen detail without objective changes
• Compensating chromatic aberration from LB objectives in camera port imaging
• Replacement of worn or missing NFK 2.5x LD eyepieces on BH2 and SZ/SZH systems

📊 Key Specifications

University and institutional customers are welcome to submit purchase orders. Please contact us for net terms and procurement documentation.