When it comes to precise measurement under the microscope, having the right reticle or micrometer is essential. At Microscope Marketplace, we specialize in helping labs, educators, and researchers find exactly what they need to make accurate measurements and counts. Whether you're performing particle size analysis, counting cells, or aligning specimens, we’ve got you covered.

We stock a wide variety of reticles and micrometer eyepiece inserts, and we’re always happy to help you find the perfect match for your scope. Below is a quick guide to the most popular types of reticles we carry:

🔍 Types of Reticles We Offer

1. Linear Scale with Crossline Reticle

   • Combines a ruled linear scale with a central crossline.

   • Ideal for measuring object length and estimating distances across a sample.

2. Counting Reticle

   • Features a series of regularly spaced marks or boxes.

   • Common in biological and materials science applications where counting items (cells, particles, etc.) is required.

3. Concentric Circle Reticle

   • Multiple circles centered around a common point.

   • Great for centering, alignment tasks, or particle size comparison.

4. Grid Reticle

   • A square or rectangular grid pattern.

   • Widely used for general measurements and estimating surface coverage.

5. Whipple Grid Reticle

   • A specific grid design used for counting bacteria or particles over a known area.

   • Frequently used in air monitoring and microbiology.

6. Crossline Reticle

   • Simple vertical and horizontal lines intersecting at the center.

   • Ideal for alignment and orientation tasks.

7. Linear Scale Reticle

   • A ruled scale with precise divisions (e.g., in micrometers).

   • Used for direct measurement of object size when calibrated properly.

8. Pinwheel Reticle

   • Radiating lines resembling a pinwheel.

   • Useful in orientation, angular measurement, or checking symmetry.

9. Miller Disk Reticle

   • A circular micrometer with area segments, used for estimating cell volumes.

   • Common in hematology and cytology.

10. Walton-Beckett Reticle

• A standard reticle used for asbestos fiber counting under a phase contrast microscope.

• Mandated in occupational health and safety procedures.

🧠 Examples of Common Use Cases

• A lab measuring particulates in air samples might choose a Whipple Grid or Walton-Beckett reticle.

• A metallurgist might prefer a Linear Scale with Crossline for sizing inclusions.

• A biology classroom may find a Grid Reticle useful for counting and estimating specimen distribution.

• For orientation or symmetry checks, a Pinwheel or Concentric Circle reticle fits the bill.

🛠 What We Need from You

To make sure we provide the correct reticle for your microscope, we’ll need the diameter of your eyepiece (usually in millimeters). Most eyepieces are 23 mm, 25 mm, or 30 mm, but it's always best to double-check.

✅ Why Choose Microscope Marketplace?

• Wide selection: Most reticles are in stock and ready to ship.

• Expert guidance: Not sure which reticle you need? Just ask — we’re here to help.

• Competitive pricing: Quotes are quick and transparent.

• Fast turnaround: Because many items are in stock, we can often ship the same or next day.

Whether you're outfitting a classroom, upgrading your lab, or replacing a worn-out insert, Microscope Marketplace is your go-to source for microscope reticles and micrometers.

👉 Need a quote? Just shoot us a message with your eyepiece diameter and what you’re measuring, and we’ll take care of the rest.