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 is a 30x optical zoom in mm?

30x optical zoom. Extend your reach to the max with this fast 27 mm – 810 mm f/2.8-5.6 Carl Zeiss Vario Sonnar T* lens. The 30x magnification range is nothing short of incredible, allowing you to zoom up to distant subjects while still maintaining the clarity that only optical zoom can provide.

How good is 30x optical zoom?

The 30x magnification range is nothing short of incredible, allowing you to zoom up to distant subjects while still maintaining the clarity that only optical zoom can provide.

What does 20x zoom mean?

The 20x simply means the longest length is 20x the shortest – so it might be equivalent to 20-400mm, 30-600mm, 40-800mm or anything in between.

How far can 10x zoom?

Having a 10x zoom on a camera phone is no mean feat: it means the device will offer a zoom ranging from 15.9mm to 159mm (the equivalent of).

How good is 60X zoom?

With a 60X optical zoom (20-1,200mm), the lens in the FZ70 is the widest and longest zoom in its class*. Its stunningly versatile ultra-wide 20mm to 1,200mm range makes it possible to capture dynamic landscapes, wildlife and almost any scene when traveling.

How many mm is 20x zoom?

At an aspect ratio of 4:3, the Canon 35 millimeter 20x optical zoom lens range is an impressive 51.8 to 1036 millimeters (35 millimeter equivalent). At the 16:9 aspect ratio, its zoom range is an equally impressive 42.2 to 844 millimeters (35 millimeter equivalent).

How good is 60x zoom?

What is 60X zoom equivalent to in mm?

20-1,200mm
With a 60X optical zoom (20-1,200mm), the lens in the FZ70 is the widest and longest zoom in its class*.

What is 60x optical zoom equivalent to?

A 60x zoom bridge camera will typically have am equivalent focal length of 24-1440mm.

What is 60x zoom in mm?

With a 60X optical zoom (20-1,200mm), the lens in the FZ70 is the widest and longest zoom in its class*.

What focal length is 30x zoom?

If you take a look at front of the lens (e.g. http://www.fujifilm.co.za/?p=1097 ), it states a focal length of 4.2-126mm. That’s your 30x (126/4.2). To compare it with any other camera, you must find the equivalent focal length on 35mm (full frame).

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. Is that right? lenszoomfocal-length Share Improve this question Follow edited Jun 4 ’13 at 10:19 Jez’r 570 2,27244 gold badges2727 silver badges4747 bronze badges

What is the meaning of mm in zoom ratio?

Jul 3 ’11 at 22:44 3 The “mm notation” is the focal length. Note that when computing the zoom ratio (e.g. 3x, 5x) the units cancel so you can quote the focal length in inches, meters, AU and it won’t influence the calculation. – Matt Grum

What is the zoom factor of a lens?

Those that cover both areas are called zoom lens. The zoom factor is the quotient of maximal and minimal focal length. This is the number, when you read something like 3.6x optical zoom at a camera. Enter two values at zoom factor, minimal and maximal focal length, the third will be calculated.

How to convert’mm’to’optical zoom’?

Viewed462k times 78 17 What is the rule to convert the ‘mm’ notation to the ‘optical zoom’ notation? I searched a bit and found this one: 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.