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written by Tim P. Slater
In this laboratory activity, students investigate properties of lenses and simple telescope construction. Students will describe the nature of convex lenses, measure the focal length of several lenses, describe real and virtual images, and construct a simple refracting telescope.  Questions help students probe their understanding of optics.

This activity is part of a larger collection which can be found at
Subjects Levels Resource Types
- Astronomy Education
- Instrumentation
= Telescopes
- Geometrical Optics
= Optical Instruments
= Thin Lens
- Lower Undergraduate
- High School
- Instructional Material
= Activity
= Laboratory
Intended Users Formats Ratings
- Learners
- Educators
- text/html
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Free access
© 1997 Tim Slater
Keplerian, lenses, telescope
Record Creator:
Metadata instance created March 4, 2004 by Patricia Monahan
Record Updated:
August 13, 2020 by Lyle Barbato
Other Collections:

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Record Link
AIP Format
T. Slater, (1997), WWW Document, (
T. Slater, Lenses and Telescopes (1997), <>.
APA Format
Slater, T. (1997). Lenses and Telescopes. Retrieved May 18, 2024, from
Chicago Format
Slater, Tim. Lenses and Telescopes. 1997. (accessed 18 May 2024).
MLA Format
Slater, Tim. Lenses and Telescopes. 1997. 18 May 2024 <>.
BibTeX Export Format
@misc{ Author = "Tim Slater", Title = {Lenses and Telescopes}, Volume = {2024}, Number = {18 May 2024}, Year = {1997} }
Refer Export Format

%A Tim Slater %T Lenses and Telescopes %D 1997 %U %O text/html

EndNote Export Format

%0 Electronic Source %A Slater, Tim %D 1997 %T Lenses and Telescopes %V 2024 %N 18 May 2024 %9 text/html %U

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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