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πŸ”¬ enhance science education with eisco double concave diameter length logo

πŸ”¬ Enhance Science Education with Eisco Double Concave Diameter Length Review

3

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Poor

Revainrating 2.5 out of 5Β Β 
RatingΒ 
2.3
πŸ”­ Optics, 🧬 Science Education

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Description of πŸ”¬ Enhance Science Education with Eisco Double Concave Diameter Length

DOUBLE CONCAVE || Highly polished, double concave lens. SPHERICAL || Lens measures 3" (75mm) in diameter. 300MM FOCAL LENGTH || Diverging lens with a 300mm focal length. OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges. GREAT FOR PHYSICS CLASSROOMS || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction.

Reviews

Global ratings 3
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Type of review

Revainrating 1 out of 5

Useless Glass Lens for Science Education

This product from Industrial and Scientific category is a total failure, as it has no practical use in teaching optics. The only pro is its affordable price, which is negligible considering its poor quality. The lens is blurry and does not provide a clear image, making it completely pointless for any educational purpose. Don't waste your money on this useless product.

Pros
  • Great tool for science education and experimentation.
Cons
  • The product is not durable enough to last for multiple uses.

Revainrating 5 out of 5

Awaken your interest in science!

Great tool for light diffraction experiments. This stimulates interest in the physics of light and in science in general.

Pros
  • Science education
Cons
  • No instructions

Revainrating 2 out of 5

I bought it for top spinning, it can't even do it!

I only bought this lens to build a spinning top spinning center and compared to a cheap makeup mirror I bought at my local grocery store, this lens doesn't work. The shooting time is literally half that of shooting on a vanity mirror. I suspect two things: the radius of curvature of the lens and the crappy surface finish of the lens. I haven't determined yet if the shape (curvature) of the lens is as advertised but I can clearly see the surface was rough and then they sped up the polishing…

Pros
  • Industrial & Scientific
Cons
  • Crumpled Pack