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Difference Between Optical And Digital Zoom.  
User currently offlineTACAA320 From , joined Dec 1969, posts, RR:
Posted (8 years 10 months 3 weeks 1 day 5 hours ago) and read 3348 times:

Hi to all,

I almost buy yesterday a digital camera for my son [he's 12] but the Fuji one he likes has two different zooms [and optical and a digital one (?????)]. Since I don't know the difference between both, I agreed with him for a waiting period until Monday.

I will appreciate your comments about the difference and the importance between them.

Thanks a lot in advance.

TACAA320

[The camera he likes is a Fuji S9500 with an optical zoom of 10 and a digital of 3 (???, not sure)].
I'm in process of subscribing to a photographic magazine. Maybe I will learn something about this beautiful whole new world for me.

7 replies: All unread, jump to last
 
User currently offlineNirmalmakadia From United States of America, joined Jun 2005, 223 posts, RR: 0
Reply 1, posted (8 years 10 months 3 weeks 1 day 5 hours ago) and read 3344 times:

Optical Zoom is the magnification capacity of the lens & Digital Zoom is Magnification done at the cost of Quality. That's the difference in my terms.

Some Pros here can differenciate technically.

Regards

Nirmal

PS: You want to rather go for more Optical Zoom than Digital.

[Edited 2006-02-08 15:28:03]

User currently offlineOly720man From United Kingdom, joined May 2004, 6848 posts, RR: 11
Reply 2, posted (8 years 10 months 3 weeks 1 day 5 hours ago) and read 3330 times:

Digital zoom basically takes a smaller area of the ccd and enlarges with software in the camera into a bigger image. So it's VERY grainy at the highest digital zoom setting.

Optical zoom uses the lens to enlarge the image that is focussed on the ccd in the camera and all the ccd is used. Optical zoom is much better quality.



wheat and dairy can screw up your brain
User currently offlineViv From Ireland, joined May 2005, 3142 posts, RR: 28
Reply 3, posted (8 years 10 months 3 weeks 1 day 5 hours ago) and read 3327 times:

Digital zoom, as others have said, is not a true zoom, but just a magnification of part of the image. The resuilts are usually rather low in quality.


Nikon D700, Nikkor 80-400, Fuji X Pro 1, Fujinon 35 f/1.4, Fujinon 18 f/2
User currently offlineWhyWhyZed From Canada, joined Jan 2005, 914 posts, RR: 16
Reply 4, posted (8 years 10 months 3 weeks 1 day 5 hours ago) and read 3327 times:

Quoting Nirmalmakadia (Reply 1):
Optical Zoom is the magnification capacity of the lens & Digital Zoom is Magnification done at the cost of Quality. That's the difference in my terms.

Basically...

Optical zoom consists of lenses moving on a track to magnify the subject for you. By doing this you lose minimal to no quality.

Digital zoom is the cameras software enlarging the photo, thus losing quality. Think of it as you cropping a photo, and then enlarging it back to the original size but with your new composition.

- Jason DePodesta


User currently offlineSean377 From United Kingdom, joined Mar 2001, 1225 posts, RR: 40
Reply 5, posted (8 years 10 months 3 weeks 1 day 4 hours ago) and read 3318 times:

The equivalent of digital zoom can also be carried out on a PC after the photo is downloaded, since it's a software manipulation. Digital zoom on a camera is really a sales gimmick and not very important. You can usually (and should) disable the feature so that you don't use it by mistake and potentially ruin a shot.

[Edited 2006-02-08 16:10:33]


Flying is the second greatest thrill known to man... Landing is the first!
User currently offlineMartin21 From Netherlands, joined Aug 2001, 347 posts, RR: 1
Reply 6, posted (8 years 10 months 3 weeks 1 day 4 hours ago) and read 3304 times:

You have to see it like this, all written above is right but a very simple explanation is this: If you have a 4 mega pixel photo and you use 2x digital zoom the camera only uses 2 mega pixels. If you use optical zoom the photo stays 4 mega pixels. My advise is not to use digital zoom because you can crop the photo later on your PC with the same result.

Martin21



At 30.000 feet, the sun always shines !
User currently offlineGary2880 From , joined Dec 1969, posts, RR:
Reply 7, posted (8 years 10 months 3 weeks 22 hours ago) and read 3264 times:

funny to watch them trying to sell cameras on the shopping channel when they know nothing about it.

''it has 20x digital zoom!'' its called digital so it must be good!

yea....


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