Use Photo

Test of Classic Pentax Lenses
Summarizes results from Modern Photography magazine tests. Written by Peter S. Spiro.
ca.geocities.com/

Reviews of Canon EF Lenses
By Praveen Murthy.
www.geocities.com/

Canon Lenses
Features life-size photographs of different prime and zoom lenses, specifications tables, and owner comments.
www.tanchung.com/

Canon EF Lenses Technical Data
Table of technical data and accessories for various Canon EF lenses, by Erwin Harkink.
home.wanadoo.nl/

Manual lenses and EOS cameras
How to use manual lenses (Spotmatic M42, Leica R, and Nikon) and telescopes with Canon EOS autofocus cameras.
photonotes.org/

Comparison of 3 Canon Mid-Range Lenses
An examination of the differences between EF 28-105 USM, EF 28-135 IS, and EF 28-70 L lenses, by Dave Herzstein. Includes photos and charts.
www.kjsl.com/

Silicone Hydrogels
Information on a class of highly oxygen permeable contact lens materials.
www.siliconehydrogels.org/

Acuvue Brand Contact Lenses
Johnson & Johnson Vision Care, Inc., is the manufacturer of contact lenses, including the Acuvue brand.
www.acuvue.com/

David Thomas Contact Lenses
Privately owned company since 1972. Offers a variety of RGP soft and specialist contact lenses, includes contact information.
www.davidthomas.com/

FDA Warns Consumers Against Using Decorative Contact Lenses Obtained Without a Prescription or Professional Fitting
Discusses eye injuries caused by improperly fitting lenses, including corneal ulcers and abrasion.
www.fda.gov/