Why do wide angle lenses have f1.4?

Started Sep 25, 2013 | Discussions thread
Draek Senior Member • Posts: 2,028
Re: Why do wide angle lenses have f1.4?

PaulD1980 wrote:

Hi all,

I'm looking to buy a wide angle lens soon to take some landscape photography.

Is there any point in purchasing a lens that has a fast aperture of something like f1.4?

Yup; faster shutter speeds for the same ISO, and of course more limited DOF

...as normally a landscape photo would be shot at something around f/8 to f/22 to get everything in focus.

Correct, which is why it's generally not too useful for landscapes.

I assume that the f1.4 would only be used to achieve some good bokeh?

Bokeh is how pretty the blur is, the aperture per se has little relevance in it. But anyways, main purpose I think is for street photographers who prefer to "get in close" with a wide-angle, and who obviously can't be taking out a flash after 6 PM nor put the camera on a tripod and make a long exposure, the way a landscapist would. Not my particular cup of tea -- I prefer normals, myself -- but I've seen plenty of stunning street work taken with 24mm and 28mm lenses, and some taken with lenses even wider; it's a valuable aesthetic, in my opinion.



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