If a person places 2 of these lenses a few inches away from each other in a tube, will it work like a monoscope?

A monoscope was a kind of tv pattern generator used to tune a tv system 30 years ago, so they don't. If you mean a telescope, you could place two of this lenses in a tube about 28 inch apart, with a magnification of about 2.5, so it just work as a demo, not a practical telescope.

are they labeled, like which one is concave and which one is convex?

They are not labeled, but the convex lenses are thicker in the center, with thinner edges. The concave lenses have thinner centers and thicker edges.

Could I use these to magnify the image from a cheap movie projector?

Has not been tested for that application, feel free to give it a shot though; if optical lenses do that, then these are optical lenses.

Would these work to make a simple refracting telescope??

In theory yes, but please be careful in reviewing focal length ratios to ensure that the tube length is reasonable.

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Eisco 6pc Optical Lens Set, 2" - 200mm, 300mm, 500mm Focal Lengths - 3 Double Convex & 3 Double Concave, 2" (50mm) Diameter Lenses - Optically True Glass - Ground, Beveled Edges - Labs

Eisco 6pc Optical Lens Set, 2" - 200mm, 300mm, 500mm Focal Lengths - 3 Double Convex & 3 Double Concave, 2" (50mm) Diameter Lenses - Optically True Glass - Ground, Beveled Edges - Labs

Product ID: 619528527

Details

Brand
EISCO
Color
Transparent
Item Weight
4.8 ounces
Lens Material
Glass
Unit Count
6 Count

🎯200-500mm focal length range

💎optically true polished glass

🔍50mm diameter precision

R942

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Description

🔬 Elevate your optics game — see science in a new light!

DURABILITY MEETS DESIGN - Ground and beveled edges provide enhanced safety and longevity, perfect for rigorous classroom or lab use.
VERSATILE FOCAL LENGTHS - Includes 200mm, 300mm, and 500mm lenses in both double convex and concave varieties for diverse experimental setups.
IDEAL FOR STEM INNOVATORS - Engineered for physics classrooms and science labs, empowering future leaders to master optics with hands-on learning.
TRUSTED QUALITY ASSURANCE - Manufactured by Eisco Labs with state-of-the-art equipment and strict quality control, guaranteeing reliable performance every time.
PRECISION OPTICS FOR SHARP FOCUS - Each 2-inch lens crafted with optically true glass ensures crystal-clear light refraction and minimal distortion.

The Eisco 6pc Optical Lens Set features six 2-inch diameter spherical lenses made from high-quality, optically true glass with ground and beveled edges. It includes three double convex and three double concave lenses with focal lengths of 200mm, 300mm, and 500mm, designed for precise light refraction and educational use in physics classrooms and laboratories. Manufactured under strict quality standards, this set offers durability and versatility for professional and academic optics applications.

Specifications

ASIN	B00BIKGMZ8
Are Batteries Required	No
Batteries required?	No
Best Sellers Rank	#155,586 in Office Products ( See Top 100 in Office Products ) #85 in School Curriculum Resources
Brand	Eisco
Brand Name	Eisco
Color	Transparent
Colour	Transparent
Customer Reviews	4.4 out of 5 stars 253 Reviews
Global Trade Identification Number	00849230033934
Item Weight	0.3 Pounds
Item weight	0.3 Pounds
Lens Material	Glass
Lens material	Glass
Manufacturer	Eisco
Manufacturer Part Number	FSC1018
Model Number	FSC1018
UPC	849230033934 789164198838 885629689177
Unit Count	6 Count
Unit count	6 Count

Reviews

D**O

cumplio

cumplio con las expectativas

30.01.2025

D**A

Good quality

Exactly what I needed to make telescopes with scouts. Good value and well packed

27.04.2019

M**S

Conforme à ce que je m'attendais

C'est ce à quoi je m'attendais.

19.12.2024

M**E

Great

Quick shipping, good product

17.03.2026

L**N

Sturdy and safe

Great lenses for straightforward, simple optics experiments. Sturdy enough to not worry that folks will break them. Polished edges keep fingers safe.

29.05.2025

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R942

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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