is 1.8 aperture better than 2.2?
3290
f/2.2 is likely a better quality lens (less aberrations, a wide aperture becomes difficult), and is smaller, lighter, and less expensive, but f/1.8 opens wider to see more light in a dim situation.
1151968
In addition, the 1.59 pure polycarbonate lens tends to scratch more easily than the 1.50, 1.57, and 1.53 lenses, because it's a softer lens material. The 1.61 high-index polymer single-vision lens provides a thinner lens for stronger prescriptions than mid- and standard-index optical lenses do.
1037611
1/2 is bigger than 3/8. ... So, answer is 1/2 is greater than 3/8.
1274076
It has to do with the fact that shrinking the aperture makes the “bent light cone” get narrower, which in turn shrinks the circle of confusion. This allows for a wider focus range and hence a larger depth of field.
1204986
Aperture Priority (A) lets you choose the aperture (aka f-stop) setting you want, but the camera chooses the shutter speed. Shutter Priority (S) lets you choose the shutter speed you want, but the camera chooses the aperture setting.
218181
50mm lenses are fast lenses with a fast maximum aperture. The most basic 50mm lenses are typically F1. 8 - a very wide aperture. This means they are great for low-light photography (e.g. low-light portraiture or indoor shooting) as they allow more light into the camera's sensor.
685614
Modern cameras and lenses have had so many years of improvements in technology that it may seem ridiculous to call them simple, even if they use photographic film instead of incredibly advanced modern light sensors. ... The larger the number on an aperture setting, the smaller fraction of light is allowed to the sensor.
1036224
['Shutter Speed.', 'Aperture.', 'ISO / Film Speed.']
1019268
In addition, the 1.59 pure polycarbonate lens tends to scratch more easily than the 1.50, 1.57, and 1.53 lenses, because it's a softer lens material. ... Just like the 1.61 high-index lens, the 1.67 lens reduces the edge thickness for nearsighted (-) prescriptions and the center thickness for farsighted (+) prescriptions.
274383
Shutter speed and aperture are not the same. In laymen's terms, your aperture is the size of the hole that lets light into your camera. And shutter speed indicates how long the camera opens its door to allow this light to reach your sensor.
795839
The Nokia 7.1 comes with a 12MP + 5MP configuration and two phase detection support for faster autofocus and f/1.8 aperture for the primary sensor. On the front, it gets an 8MP sensor with f/2.0 aperture. In comparison, the Nokia 6.1 Plus offers a 16MP + 5MP system on the back with f/2.0 aperture for the primary lens.
906120
Eye relief at any power isn't very good, and varies considerably with the magnification setting. ... Not as much magnification, but only one sighting system, and the glass is *lots* better (though I paid a lot more too). I'm happier with the 1-4x system than with this NcStar scope + 45-degree iron sights.
213945
The Show 8 has the same side-firing two-inch speakers, passive bass port, and wedge shape as the 10-inch Echo Show. The other thing you get over the larger Show is the ability to block the camera with a built-in shutter, adding a level of privacy protection to the Show 8 that I appreciate.
746777
No contest: the Sigma is sharper. Way sharper. Just like in studio, there isn't really anything wrong with the results from the Canon, the Sigma is just better. Both lenses were wide open and the Sigma outperformed the Canon in sharpness even open further to f/1.4 over the Canon's f/2.
1354852
The 35 mm lens is much wider than a 50 mm lens but does not cause nearly as much distortion as the 24 mm lens. Because of this, it can be a wide angle when you want it to be and also a standard if you want it to be!
505659
The difference of 120 is barely noticeable. Any framerate between can cause odd skips. The human eye is approximately 80 FPS so 60 or 120 is the best.
974125
Aperture (f/stop) is the size of the opening inside your lens through which light passes. ... The "f-stop" is the ratio of the focal length and the aperture diameter: f-stop = focal length / aperture diameter. The aperture, in combination with shutter speed, determines how much total light that reaches the sensor.