Question about Panasonic Lumix DMC-F1S / DMC-F1K Digital Camera

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Differences between Optical Zoom and Digital Zoom

What is the difference between Optical Zoom and Digital Zoom?

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Re: Differences between Optical Zoom and Digital Zoom

When you change the focal length of a zoom lens, the subject is magnified. Optical zoom replicates the zoom of a 35mm camera. Digital zoom takes a portion of the image's data and displays it at full size, producing a magnification of the original image, similar to the effect of using a telephoto lens. However, the process is different from the magnification produced using the camera's optical zoom, and the stronger the digital zoom, the more the image will degrade.

Posted on Aug 30, 2005

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What is the difference in the optical and digital zoom?


Hi,

Find the difference below

Digital Zoom

1. Digital zoom is a part of digital cameras, and camcorders, which helps to crop the entire image, and then digitally enlarge the size of the viewfinder of the portion that is needed to zoom in on
2. Digital zoom crops the image down to a centred area with the same ratio as the original, and also interpolating the result back up to the pixel dimensions of the original. this method involves cropping, hence the resolution and quality is reduced
3. Digital zoom, crops a portion of the image and then enlarges it back to size. And due to this, image quality is reduced in comparison with the original one.
4. Using the digital zoom allows the user to get closer to the subject when the photographer wants to be discreet about taking pictures, like taking a picture of a person in a graduation ceremony.

Optical Zoom

1. While taking a picture using a Camera to want to get a close shot of the subject without moving physically closer, photographers use the optical zoom.
2. The optical zoom ratio of a digital camera measures how much the lens can actually zoom in to make subjects appear closer. Optical zoom, enlarges a picture while keeping the resolution and sharpness of the picture high.

3. There is no relation between optical zoom and the resolution of the photo, as optical zoom only enlarges the whole image or the subject to a certain range. So image quality only depends upon the mega pixel (MP) of the camera

4. Optical zoom is very useful, while taking a picture of a landscape, or to get a closer view of a subject, without reducing the quality of the entire image, like taking a picture of a Rainbow in the sky.
Regards,
Ron


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Jul 01, 2011 | Nikon Digital Cameras

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Just purchased it from bid tv it has 4xdigital zoom would i have been better to get optical zoom instead this is my first camera


Digital zoom enlarges the ccd image and will become more pixelated the more you zoom and optical zoom uses an actual lens to magnify the image coming into the camera. optical zoom is better than digital zoom.

Sep 25, 2009 | Vivitar 7.0MP Camera Digital Camera with...

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Optical zoom problem in movie mode


Your camera is not broken. That's by design. Canon cameras do not allow optical zoom use while in movie mode. Canon claims that using the optical zoom in movie mode would cause excessive noise in the movie. However, you can use digital zoom in movie mode. You'll need to go into the menus (press the menu button) and turn digital zoom "on" if it's currently off.

Oct 11, 2008 | Canon PowerShot SX100 IS Digital Camera

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Optical zoom


Hey needacamera,
The range of an optical zoom lens refers to how wide angle to telephoto the lens covers. An example of a 6x optical zoom would be an 18mm-108mm lens, which covers wide angle to telephoto. An example of a 3x zoom lens would be an 18mm-54mm lens, which would provide a capability of capturing images from wide angle to normal views. To calculate the x factor of an optical zoom you would divide the largest number by the smallest number on your zoom. I hope this helps!

Sincerely,
Allan
Go Ahead. Use Us.

May 31, 2008 | Digital Cameras

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Zoom


IT WONT...DIGITAL ZOOM IS IMPOSIBLE TO TAKE OFF I YOU DONT HAVE OPTICAL ZOOM

Feb 21, 2008 | Canon PowerShot S3 IS Digital Camera

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Zoom function


Yes. This camera has 3x optical zoom and 4x digital zoom. However digital zoom cannot be used in 2880 x 2160 size. Optical zoom: It is approximately 5.6 - 16.8 mm. (equivalent to 38 - 108 mm on 35mm film camera) Digital zoom: It extends to 4x from telephoto end (108mm) of optical zoom.

Sep 19, 2005 | Konica Minolta DiMAGE E323 Digital Camera

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Optical vs. digital zoom


It's important to understand this difference, as you could be disappointed with the results if you use one rather than the other. Optical zoom works like the zoom on a traditional film camera. When you push the button to zoom in or out, physical lens elements move inside the camera, reducing the field of view and making the object you're shooting appear closer. Digital zoom, on the other hand, has no moving parts. The camera interpolates a small portion of an image to artificially restore the file to its original size. Using its electronic brain, the digital camera analyzes what it sees and digitally zooms in, usually two or three times closer. Unfortunately, digital zoom also reduces the resolution of an image, so your picture will tend to be more pixilated than the same image taken with an optical zoom camera. If you're just snapping an image to e-mail to a friend, this loss of resolution won't be so noticeable. But in situations where the highest quality counts, skip the digital zoom and use your PC's image-editing tools to zero in on your subject.

Sep 08, 2005 | HP Photosmart 120 Digital Camera

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Super Zoom


In addition to the optical zoom, this camera is equipped with a super zoom and digital zoom for taking telephoto and wide-angle shots. The super zoom and digital zoom cannot be used at the same time. Super zoom is used to extend the optical zoom up to 14× magnification. However, the resolution is automatically fixed at 1600 ×1200. Digital Zoom is used to extend the maximum optical zoom to approximately 40x. However, pictures taken with the digital zoom may appear grainy. Camera shake is likely to occur at these higher magnifications, please see “camera shake” question for further details on this.

Sep 04, 2005 | Olympus Camedia C-770 Digital Camera

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Super Zoom


In addition to the optical zoom, this camera is equipped with a super zoom and digital zoom for taking telephoto and wide-angle shots. The super zoom and digital zoom cannot be used at the same time. Super zoom is used to extend the optical zoom up to 14× magnification. However, the resolution is automatically fixed at 1600 ×1200. Digital Zoom is used to extend the maximum optical zoom to approximately 40x. However, pictures taken with the digital zoom may appear grainy. Camera shake is likely to occur at these higher magnifications, please see “camera shake” question for further details on this.

Sep 04, 2005 | Olympus Camedia C-765 Digital Camera

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