Focal length (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Focal length" in English language version.

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Charles, Jeffrey (2000). Practical astrophotography. Springer. pp. 63–66. ISBN 978-1-85233-023-1.
Stroebel, Leslie; Zakia, Richard D. (1993). The Focal encyclopedia of photography (3rd ed.). Focal Press. p. 27. ISBN 978-0-240-51417-8.

books.google.com

Stroebel, Leslie D. (1999). View Camera Technique. Focal Press. pp. 135–138. ISBN 978-0-240-80345-6.

doi.org

Simpson, Michael J. (24 February 2023). "Focal Length, EFL, and the Eye". Applied Optics. 62 (7): 1853–1857. Bibcode:2023ApOpt..62.1853S. doi:10.1364/AO.481805. PMID 37132938.
Simpson, Michael J. (28 March 2022). "Nodal points and the eye". Applied Optics. 61 (10): 2797–2804. Bibcode:2022ApOpt..61.2797S. doi:10.1364/AO.455464. PMID 35471355.

harvard.edu

ui.adsabs.harvard.edu

Simpson, Michael J. (24 February 2023). "Focal Length, EFL, and the Eye". Applied Optics. 62 (7): 1853–1857. Bibcode:2023ApOpt..62.1853S. doi:10.1364/AO.481805. PMID 37132938.
Simpson, Michael J. (28 March 2022). "Nodal points and the eye". Applied Optics. 61 (10): 2797–2804. Bibcode:2022ApOpt..61.2797S. doi:10.1364/AO.455464. PMID 35471355.

nih.gov

pubmed.ncbi.nlm.nih.gov

Simpson, Michael J. (24 February 2023). "Focal Length, EFL, and the Eye". Applied Optics. 62 (7): 1853–1857. Bibcode:2023ApOpt..62.1853S. doi:10.1364/AO.481805. PMID 37132938.
Simpson, Michael J. (28 March 2022). "Nodal points and the eye". Applied Optics. 61 (10): 2797–2804. Bibcode:2022ApOpt..61.2797S. doi:10.1364/AO.455464. PMID 35471355.