> > Ken Durling wrote: > > >The Mk II is sharper and less expensive than the original, > > >but the original is better built. That's the trade off. > > > > > > Really? I've heard more than once that they're the same optical > > design. Not doubting you, just curious. Is there documentation of > > the changes? I have the first version, but have never shot with a > > Mk.II. > ---------------------------------------------------------------- > Yes Ken. I think the only test I have showing both is from Pop Photo (see > below). The newer lighter but plastic Mark II slightly edges out the older > Mk I. In reality its doubtful you will see it unless you shoot and enlarge > to an 11 x 14. > The Mk2 also has slightly less barrel distortion as well. > > Canon 50mm f/1.8 EF: (POP: Feb,1991) > Focal lenght: 50.62mm > Maximum aperture: 1.82 > Maximum magnification: 1:6.2 (0.33m/1' 1") > Minimum aperture: 22 > Number of blades: 5 > Focusing: 150 deg. counterclockwise > Construction: 6/5 > Filter size: 52mm > Weight: 0.188 kg (6 5/8 oz) > > > 50mm: (1.4% barrel distortion) > > 3x5 4x6 5x7 8x10 11x14 16x20 20x24 > ------------------------------------------- > 1.8 | A+ | A+ | A+ | A | B+ | C+ | C | > ------------------------------------------- > 2.8 | A+ | A+ | A | B+ | C+ | C | D | > ------------------------------------------- > 4.0 | A+ | A+ | A+ | A | B+ | C+ | C | > ------------------------------------------- > 5.6 | A+ | A+ | A+ | A | B+ | C+ | C | > ------------------------------------------- > 8.0 | A+ | A+ | A+ | A+ | A | B+ | B | > ------------------------------------------- > 11.0 | A+ | A+ | A+ | A+ | A | A | B | > ------------------------------------------- > 16.0 | A+ | A+ | A+ | A+ | A | B+ | C+ | > ------------------------------------------- > 22.0 | A+ | A+ | A+ | A | B+ | C+ | C | > ------------------------------------------- > > > ------------------------------------------------------------------ > ---------- > ---- > > > Canon 50mm f/1.8 II EF: (POP: May,1991) > Focal lenght: 50.84mm > Maximum aperture: 1.83 > Maximum magnification: 1:6.3 (0.35m/1' 1.75") > Minimum aperture: 22 > Number of blades: 5 > Focusing: 70 deg. counterclockwise > Construction: 6/5 > Filter size: 52mm > Weight: 0.128 kg (4 1/2 oz) > > > 50mm: (1.1% barrel distortion) > > 3x5 4x6 5x7 8x10 11x14 16x20 20x24 > ------------------------------------------- > 1.8 | A+ | A+ | A+ | A | B+ | C+ | C | > ------------------------------------------- > 2.8 | A+ | A+ | A+ | A+ | A | B | C+ | > ------------------------------------------- > 4.0 | A+ | A+ | A+ | A+ | A | B+ | C+ | > ------------------------------------------- > 5.6 | A+ | A+ | A+ | A+ | A+ | A | B+ | > ------------------------------------------- > 8.0 | A+ | A+ | A+ | A+ | A+ | A | A | > ------------------------------------------- > 11.0 | A+ | A+ | A+ | A+ | A+ | A | A | > ------------------------------------------- > 16.0 | A+ | A+ | A+ | A+ | A+ | A | B | > ------------------------------------------- > 22.0 | A+ | A+ | A+ | A+ | A | B | C+ | > ------------------------------------------- >
Hi All, I for one don't rely on the purely subjective nature of the POP Photo lens tests! Worse yet is the apparent relationship between the advertising dollars spent and the test results, give me a break. You might just as well use my tests, at least I used more than one sample of each lens over a long period of time. I've used all of the non-macro Canon 50mm lenses, EF 50 1.8, EF 50 1.8II, EF 50 1.4USM and EF 50 1L and bought an EF 50 1.4USM based on my own field tests using transparency film. IMO, optically the EF 50 1.4USM is the best of the bunch edging out the EF 50 1.8 and EF 50 1.8II which performed identically on film and the EF 50 1L in last place overall. Built quality wise the EF 50 1L is the best built with the EF 50 1.8USM, EF 50 1.8, and EF 50 1.8II following. Regards, Chip Louie * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
