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RESTRICT TO:
for example ' Pentax zoom ' to compare Pentax zooms
for example ' Pentax zoom @1..mm ' to compare Pentax zooms in short telephoto range
for example ' 28-300|135.*prime 135mm ' to compare hyperzooms to primes at 135mm
for example ' Leica|Nikkor|Contax|Pentax|Olympus|Minolta|Canon prime 50mm ' to compare elite normal primes
for example ' . ' to see all 4000+ photodo.com results
you may use any UNIX regular expression.
selecttested focal length/lens designationf1f1.2f1.4f1.7f1.8f1.9f2f2.3f2.5f2.6f2.7f2.8f3.2f3.3f3.4f3.5f3.6f3.7f3.8f4f4.2f4.5f4.6f4.7f4.8f5f5.2f5.6f6.3f6.5f6.7f8f11
selecttested focal length/lens designationf1f1.2f1.4f1.7f1.8f1.9f2f2.3f2.5f2.6f2.7f2.8f3.2f3.3f3.4f3.5f3.6f3.7f3.8f4f4.2f4.5f4.6f4.7f4.8f5f5.2f5.6f6.3f6.5f6.7f8f11

interpolations are done in log scale.