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# What is 18x optical zoom equal to?

## What is 18x optical zoom equal to?

28- to 504 -mm
Its 18x optical zoom is equivalent to a 28- to 504 -mm lens for a film camera. Its range is wide enough for shooting in both tight quarters and at great distances.

## How do you calculate optical zoom?

To determine the overall zoom ratio of the lens, simply divide the longest focal length by the shortest. So, for example, the Sigma 18-35mm F1. 8 DC HSM and the 8-16mm F3. 5-4.5 are both examples of 2x zoom lenses: 35 divided by 16 equals 1.95, and 16 divided by 8 equals 2.

What does 50x optical zoom mean?

The 50x optical zoom lens is a 35mm equivalent of 24-1200mm, which can be extended to 100x using Zoom Plus. Thanks to its Ultra Sonic Motor the lens has near-silent zooming. To help take the sharpest shots possible there is 4.5 stop optical image stabilisation.

What’s the equivalent of a 10x optical zoom?

Sony DSC-HX200V 30X optical zoom is equivalent to810mm zoom. Canon Powershot SX40 Lens Markings This entry was posted in Uncategorized. Bookmark the permalink.

### How to compare optical zoom of point and shoot?

It will show you something is “mm”, generally starting from around 5 mm. Since it has 10X zoom the reading would be 5mm to 50mm (5X10 = 50). Now, since the camera has 6x crop factor, we will multiply both end of focal lengths by 6 to get a “35 mm equivalent” focal length. In this case it would be 5X6 =30mm and 50X6 = 300mm.

### How big is the Zoom on a DSLR?

It will show you something is “mm”, generally starting from around 5 mm. Since it has 10X zoom the reading would be 5mm to 50mm (5X10 = 50). Now, since the camera has 6x crop factor, we will multiply both end of focal lengths by 6 to get a “35 mm equivalent” focal length.

What’s the difference between focal length and optical zoom?

optical zoom = maximum focal length / minimum focal length For example a 18-55mm lens would have a 3x optical zoom, and a 18-200mm lens would have a 11x optical zoom.