Time to be with your loved ones

Time to be with loved ones

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0

Actually, when the aperture is stated as "f/#", that is the aperture diameter measurement, where f is the focal length and # is the f-number. f-number = focal_length/aperture_diameter So, a 50mm lens at f/4 has an aperture opening diameter of 12.5mm. And a 100mm lens at f/4 has an aperture opening diameter of 25mm. This is why we prefer using the ...


1

The focal length is the actual focal length of the lens, but since you have a very small sensor, it is highly cropped compared to what you would get with a 35mm lens. Since the crop factor is 4.8, it is equivalent to a 29.28mm-146.4mm lens. The aperture is the range of maximum apertures, 1.8 on the wide end and 2.8 on the tight end. Again, crop factor ...


1

Focal length A 50 mm focal length is considered as 'normal' for a full frame camera, i.e. with a sensor that is 24 x 36mm. With a smaller sensor the focal length for a 'normal' lens is shorter. The G15 has a 7.6 x 5.7mm sensor, so a 'normal' lens would be 11mm. The 6.1-30.5mm lens has the same field of view as a 28-140mm lens would have on a camera with a ...


7

6.1-30.5mm is the actual focal length (zoom) range for the lens, but the sensor in the camera is much smaller than that in a dSLR or film camera, so the focal lengths are also smaller. The G15 uses a 1/1.7" format sensor, so its crop factor is roughly 4.5x. The spec to look for here, if you know how focal lengths translate to field of view (FOV) on film is ...


0

The original question is a bit unclear because the OP indicates wanting more information than provided, but not really why. For the EXIF details that are provided: F stop is important because it directly affects depth of field. Focal length is important because it indicates how much magnification the lens imparts compared to actual (human eye) view. ...


3

Like a lot of things that seem odd today, the f stop is a historical tradition. Early photographers, were manually setting their camera exposure, and in the very early days without the help of a light meter. They needed a way of expressing the light passing capacity of a lens in a way that was portable (you didn't need to learn a new set of numbers for ...


14

The f-stop is more directly relevant to photographers because it normalizes out the focal length. It then gives you a measure of how bright the image will be on the sensor relative to the scene brightness. For example, if a scene is well exposed with a 50 mm lens at f/8 and 1/200 second, then it will be well exposed with any other lens at f/8 and 1/200 ...


1

Are you looking for something like this? Basically the 300mm gets you closer to your subject. The magnification is greater than with a 200mm focal length! Hope that helps somehow!


1

When you zoom, you will see some numbers on the lens: Read them carefully! It says on the left side and right side: LEFT SIDE RIGHT SIDE equiv.135 80mm 14.4mm 135 24.4mm 200 35.9mm 300 53.9mm 500 89.8mm 830 149.1mm



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