does anybody know how far is the diffrents between 4x optical zoom and 6x optical zoom?

Answer 1

Cap explained the math, but we can't really say without knowing what the focal length of the lens is. Here's why.

It seems like most point and shoot cameras with a zoom lens start out in the area of 28-or-35 mm. Let's just choose 35 mm for this example. If the camera has a 4X zoom, it would be a 35-140 equivalent. 140 mm is a moderate telephoto. Suppose it starts at 28 mm, though. This would be a 28-112 equivalent. 112 mm is also a moderate telephoto, but hardly impressive. It would seem that a 5X telephoto would be "better," but the 5X zoom starting at 28 mm would yield exactly the same 140 mm as the first example.

In other words... The "power" expressed in terms of [some number]X doesn't really mean that much. This is especially true in digital SLR's. What matters is the actual focal length of the lens. Fortunately - at least for sake of comparison - the majority of DSLR's have pretty much the same magnification factor and that is around 1.5 to 1.6. It makes direct comparisons a lot easier, but you have to develop a sense of what constitutes a "long" vs. a "moderate" telephoto.

Unless and until we have a major paradigm shift, it will still be helpful to think in terms of 35 mm equivalents when you are buying a lens. This is the "language" that we speak, using 35 mm as the de facto standard. Focal length comparisons make more sense that expressing the magnification by "zoom power."

Answer 2

To show you exactly what's the different. Click on the link below.

http://www.usa.canon.com/app/html/EFLenses101/focal_length.html

First, lets use something as 0X zoom. Click on 20mm. Let just say 20mm is when your camera not zooming at all. See how wide you can see.

Now click on 85mm. This is a little bit more than 4X (20X4=80). Now you get the feel how a 4X zoom looks like.

Now click on 135mm. This is more closer to 7X since 20X6=120 only. But this chart will give you an idea how different a 4X and 6X will actually look like.

Hope this help.

Answer 3

6x zoom will give you 50% more zoom than a 4x zoom lens.

Enjoy

Answer 4

mmm...2x