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National Optical 157 Advanced Series Binocular Biological Microscope, Reconditioned

Benz Microscope

  • $299.00 USD

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The refurbished National Optical Advanced 157 Series is a great choice for AP Biology, college courses, veterinary and intermediate clinical use, as well as industrial and hobby applications. Measures 15" high and weighs 11 lbs. Free shipping.


Cat. No. 157
Binocular, Inclined 45°, Rotates 360°
Din Objectives 4X, 10X, 40XR, 100XR Oil
Nosecone 4 Hole Turret, Ball Bearing Mounted
Eyepieces W10XD 18mm with Pointer
Stage  Graduated Mechanical Stage, 5.25" x 5.25" with Low Position Coaxial X-Y Controls.
N.A. 1.25 Abbe Condensor with Iris Diaghragm, Spiral Mount, Swing-out Filter Holder with Blue Filter
Focusing Separate Course and Fine Focus w/Slip Clutch (to protect mechanism and slides from damage)
 Illuminator 5W Fluorescent
Replacement Bulb 2202F
Original Mfr Sugg. List $650.00

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Questions & Answers

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  • Hello, I recently purchased yesterday the $240 AO Riechert 150 model and am now curious to know if this would be a better scope though it has din objectives vs. the infinity objectives of the AO Riechert. Am I able to place darkfield filter in the AO Riechert as I am with this scope? Thank you, Jeff

    Hi Jefff, thank you for reaching out, you have excellent questions! Mike Benz will contact you, directly, before we process anything. We want to be sure you have the opportunity to choose the best option for your application. You'll be hearing from him soon!