The present invention provides a small, thin, light and low cost zoom lens suitable
for cellular telephones, portable information terminals, etc. In particular, it
can provide a small and thin, high performance zoom lens having a zoom ratio of
approximately 2, a depth of less than 9 mm during shooting and in storage, a total
lens length of less than 30 mm, an angle of view of approximately 61, and
a F number of approximately 2.8 providing a sufficient light, with various aberrations
all suitably corrected.
