Question

 How to Use Sigma on a TI-89?

Answer Sigma, the symbol Σ, is used to denote a summation in math. A summation adds a set of numbers together. The sigma is used on a TI-89 when calculating a summation. A TI-89 is a calculator developed... Read More »
http://www.ehow.com/how_8364202_use-sigma-ti89.html

Top Q&A For: How to Use Sigma on a TI-89

Will a Canon 50D work with a sigma 18-50mm and sigma 50-150mm hsm?

I have a Canon Ixus 400 and have been using a 1GB Integral memory card on it for years - works absolutely fine!
http://wiki.answers.com/Q/Will_a_Canon_50D_work_with_a_sigma_18-50mm_and_sigma_50-150mm...

Will sigma 35mm lens fit the sigma digital camera?

Sigma builds lenses with mounts to fit Sigma and other cameras. I own two which are made to fit a Canon body. These would not work on a Sigma camera as they are, but I'm sure the lenses are also av... Read More »
http://wiki.answers.com/Q/Will_sigma_35mm_lens_fit_the_sigma_digital_camera

Which is a better sigma 120-400 lens or sigma 150-500 len?

Nikon stopped producing the D80 in August 2008 as it was replaced by the D90 :)
http://wiki.answers.com/Q/Which_is_a_better_sigma_120-400_lens_or_sigma_150-500_len

What does APO stand for in Sigma lenses and how does it differ from normal sigma lenses?


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