I mentioned before that the wedding photography seminar we watched featured a photographer who used three prime and one zoom lens.  The three primes were a 24 mm f/1.4, a 50 mm f/1.2, and an 84 mm f/1.4. Everything she shot was with available light.  Well, now I appreciate why she used such fast glass.

I used Aperture Inspector to look at the aperture and iso I used for the wedding last Saturday.  91%of the pictures were take with apertures less than f/5. 40% were taken at iso 400, 27% at iso 800 and 6% were taken at iso 1600.  86% of the pictures were taken at shutter speeds faster than 1/60 second.

Faster glass would mean wider apertures, lower iso values and faster shutter speeds.

I found a Rokinon 85mm f/1.4 on eBay.  It is manual focus and manual aperture.  So, it will take some experimenting.