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

Batteries required?
No
Brand
Eisco
Colour
Transparent
Item weight
0.3 Pounds
Lens material
Glass

🎯200-500mm focal length range

💎optically true polished glass

🔍50mm spherical diameter

€ 61.07

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

COMPACT READY TO USE - Each 2-inch diameter lens fits perfectly in your lab kit for on-the-go scientific exploration.
DURABILITY MEETS DESIGN - Crafted with high-grade glass and beveled edges to withstand rigorous lab and classroom use.
VERSATILE FOCAL LENGTHS - Master your experiments with 200mm, 300mm, and 500mm focal lengths in both concave and convex forms.
IDEAL FOR STEM EDUCATION - Elevate physics lessons and optics demos with a professional-grade lens set trusted by educators.
PRECISION OPTICS FOR CLARITY - Experience crystal-clear light refraction with optically true, ground-edge glass lenses.

The Eisco 6pc Optical Lens Set features six 2-inch diameter spherical lenses, including three double convex and three double concave lenses with focal lengths of 200mm, 300mm, and 500mm. Made from optically true, highly polished glass with ground and beveled edges, this set is designed for precision in physics classrooms and laboratory demonstrations. Manufactured under strict quality controls, these durable lenses offer versatile focal lengths for converging and diverging light experiments, making them an essential tool for STEM education and scientific exploration.

Specifications

ASIN	B00BIKGMZ8
Are Batteries Required	No
Batteries required?	No
Best Sellers Rank	#195,097 in Office Products ( See Top 100 in Office Products ) #110 in School Curriculum Resources
Brand	Eisco
Brand Name	Eisco
Color	Transparent
Colour	Transparent
Customer Reviews	4.4 out of 5 stars 254 Reviews
Global Trade Identification Number	00849230033934
Item Weight	136 g
Item weight	136 g
Lens Material	Glass
Lens material	Glass
Manufacturer	Eisco
Manufacturer Part Number	FSC1018
Model Number	FSC1018
Number of Items	1
UPC	849230033934 789164198838 885629689177
Unit Count	6 Count
Unit count	6 Count

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€ 61.07

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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