Wide Apeture Lenses

12 years 10 months ago #6484 by memesphotos
Why do people love there wide aperture f1.2 lenses so much? They are so expensive, does anyone here have one. What is the main function of this lens?

12 years 10 months ago #6493 by Solstar
While my budget doesn't allow for a F1.2 I do have a 50mm f1.4 and an 85mm f1.8. I have them for two reasons: 1) Low light capability 2) Background blur/selective focus

12 years 10 months ago #6506 by herbg
Besides low light capabilities and a shallow depth of field, there's the issue of quality. These faster lenses tend to be extremely high quality. They use the best materials and manufacturing methods. For instance, a 50mm f/1.8 is a good lens but they are made to a price point. They are usually ok at f/1.8 but at f/4-5.6 the image quality improves. But a 50mm f/1.4 is a big step up in glass and build quality. It tends to have better sharpness, chromatic aberration control and bokeh quality at larger apertures than the 50mm f/1.8 would.

An f/1.2 lens would necessitate very high quality glass and build. Which is why they are so expensive. With that, image quality is even higher on these. The interesting thing with these super-fast lenses is that wide open depth of field can be so shallow that a subject's nose will be tack sharp and their eyes will be slightly soft. But at f/2.8, for example, this lens will be far superior to a lesser lens at that f/stop.

12 years 9 months ago #8371 by CanonKid
I'm still after a 1.2 lens myself, but pretty much for the same reasons already mentioned, the low light and DOF control would be much better than other lenses on the market!

Canon 7D, 15-85mm, 18-55mm, 70-200mm, 100mm Macro, Sigma 120-300mm, Speedlite 430EX II

A bad day at the race track is better than a good day in the office

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