National Optical 157 Advanced Series Binocular Biological, Reconditioned Microscope
- Price
- $299 USD
Options:With Free Dust Cover
National Optical 157 Advanced Series Binocular Biological, Reconditioned Microscope. 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.
All refurbished microscopes include a 1-Year Warranty* and free Benz Microscope Dust Cover. Would our exclusive, Soft Sided Carrying Case suit your needs better? Get one with your reconditioned microscope for just $30 more! That's $18 off the regular price, and only available at Benz Microscope.
FEATURES:
| Cat. No. | 157 |
| Head | 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. |
| Substage | 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 |
| Weight | 15" high and weighs 11 lbs. |

Frequently asked questions
I am looking for a user's manual for the National 157X microscope. Do you have one available?
Thank you for visiting BenzMicroscope.com! We do have a manual for the National 157 Series. Could you please let me know if you purchased the instrument from us and didn't receive a manual, or if you simply need to find a replacement manual for an instrument you already had? Thank you!
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!
Hi. I’m planning on buying a refurbished microscope from this website. It will be a gift for my teenage daughter, for home use. What are some specifications I should look at? My price range is less than $400. Thank you!
Good morning! You indicated interest in a refurbished microscope, and we would like to speak to you to determine the best instrument for your daughter's application. Would you please provide a regular email address or phone number where we could reach you. A voice call is best to answer any questions you may have, but we can start communication whichever way you feel most comfortable. You are welcome to phone us at 888-365-6065, if it's more convenient. We're located in Michigan and are open 9 - 5 EST. We look forward to hearing from you!