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Optical zoom what is the difference in optical zoom as far as 3-4x vs. 5-6x??

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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.

Posted on Jun 04, 2008

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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


// Rate the solution with 4 thumbs up if the answer is satisfactory

Jul 01, 2011 | Nikon Cameras

1 Answer

How do I activate digital zoom on my canon S3IS


I believe there is a ring around the button the shutter button (the button you press to take the photos. Your sort of push it left or right (near or far). The digital zoom should activate after it goes past its optical zoom range. Push it only slightly to slow down the zoom process.

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Ricoh XR-10 35mm SLR camera


stevdan,

take the screws off the bottom cover. there is a small lever pointing toward the front of camera with a black screw on it. gently move it to the left, this will release the lock lever. Now advance the lever and the shutter should fire. if not, it is not repairable. no parts
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1 Answer

Zoom


Hey bello205,
This camera does not allow the user to actually turn off the optical zoom, but does allow the user to shut off the digital zoom. If you are talking about the digital zoom make sure it is turned on in through the menu system. As far as the optical zoom goes make sure you are not in playback mode. If this doesn't work you can try having the camera reset to the original settings every time you shut off the camera by choosing this option under the setup menu in playback mode. If none of this works have the camera looked at by an authorized service technician.

Sincerely,
Allan
Go Ahead. Use Us.

May 01, 2008 | Olympus Camedia C-720 Ultra Zoom Digital...

2 Answers

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

1 Answer

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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If I take hi-res pictures with the 3040 how much can I manipulate the image on my PC to zoom in while still maintaining quality?


Digital zoom in the camera means nothing. You can't create detail that isn't there. Enlarging and sharpening on the PC can produce much better results than in-camera digital zoom - no more real detail, but a better illusion of detail by enhancing edges. You can print up to about 8x10 with the 2100 or 11x14 with the 3040, but a zoomed in 2100 8x10 will probably be a more spectacular picture than the 3040's 11x14, unless you can get equivalently close to your subject. Also, the more precise viewfinder of the 2100 can make up for the difference in resolution. With the 3040, you are more likely to need to crop to print your desired view (unless you can use the LCD), since you can't see exactly what you are going to get when using the optical viewfinder and will tend to get more periphery than you want.

Sep 07, 2005 | Olympus Camedia C-3040 Zoom Digital Camera

1 Answer

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.

Aug 30, 2005 | Panasonic Lumix DMC-F1S / DMC-F1K Digital...

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