focusing range with close-up filter

greenspun.com : LUSENET : Canon EOS FAQ forum : One Thread

What will be the focusing range of my 50mm 1.8 if i screwed a +250D macro filter on it,the original range is 0.45-infinity? Thanks

-- albert chris (a@b.com), March 05, 2002

Answers

Working distance range 161mm to 250mm by calculation. You are welcome.

-- Julian Loke (elan7e-owner@yahoogroups.com), March 05, 2002.

how did you do the calculation julian.

-- sajeev (chack74@yahoo.co.in), March 05, 2002.

See: http://space.tin.it/arte/ripolini/Close_up.htm

-- Julian Loke (elan7e-owner@yahoogroups.com), March 05, 2002.

Moderation questions? read the FAQ