Graph of MTF50 data from Photozone.de tests of Canon-mount low-light primes and some f/2.8 lenses. All PZ data from standardized tests on the same Rebel XT body.
ERROR: 500
NOTES: [hset] LOADING Redis is loading the dataset in memory, at /usr/local/share/perl5/Redis.pm line 268. ,
PBASE_ENV: production
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