Ok got it cause i need a lot of optical zoom because we film events from about 100 yards awayvtprinz said:As was said above, ignore the fact the a camera even has digital zoom. With each little increment of digital zoom, you lose a good amount of quality in the picture. Stick with optical zoom. Digital can be used in emergencies, but again as said above, you can always crop and enlarge the portion you want on the computer, and you get much better quality that way.
FWIW, I work at Ritz Camera, and we even tell our customers not to use digital zoom.
CaptainCaveMann said:Ok got it cause i need a lot of optical zoom because we film events from about 100 yards away
Well me and my friend were using a 10x zoom and it wasnt really cutting it but u could still see but im hopin 18x or 20x will do it on the newer camsvtprinz said:Ouch, that could require a pretty good amount of zoom. And that means $$
You can test some cams out in a store, but I doubt you'll get a lens that can get close enough without going into the DSLR category.
Thanks man that helps outvtprinz said:just came across this, thought you might like to see it: http://bobatkins.photo.net/photography/digital/digital_zoom_vs_optical_zoom.jpg
I take no credit for the shot, I just found it in google. So if it's yours, don't sue
CaptainCaveMann said:Ok got it cause i need a lot of optical zoom because we film events from about 100 yards away
CaptainCaveMann said:Whats the difference between optical zoom and digital zoom?
CaptainCaveMann said:Ok got it cause i need a lot of optical zoom because we film events from about 100 yards away
CaptainCaveMann said:Im only talking about video sorry
absolut_mac said:What difference does it make whether you're talking about a still camera or video? Either way the image degradation will be the same.
The only difference is that it will be more easily seen with a still camera than in a video for two main reasons viz. video pics are lower resolution than most still cameras and because the picture on the screen is moving, so it's lower resolution will not be as obvious.
I have no idea Heres the deal... Me and my friend sit up on top of this hill at the beach and we want to film eachother surfing and make a video. I have no clue what we need or what not but we were using my friends camera and it only had 10x zoom and it looked fine but it was just to far away. I will be editing it on a 1024x768 screen if that helps?? My friend has a powerbook and i think thats 1200x800 screen or something like that so i hope that answers the resolution question you asked. I was hoping the 350 dollar camera from cannon with 20x zoom would do the job. Were not rich and were also not looking for extremely good quality we just want to watch ourselves surf and make a decent video that is clear enough to see.superninjagoat said:I think you answered your own question.
Since he will be doing video, the degradation will be less noticeable. After a certain point, CaptainCaveMann doesn't care what the image quality is, because at that point the picture is good enough.
CaptainCaveMann,
one way you can judge what combination of digital/optical zoom you need would be to start with the output resolution you intend to use your footage. Say it is 640 X 480. Let's also assume you want 20X magnification. If you have a camera with 3.2 megapixels (2048x1536), you could use up to 3.2 times digital zoom without significantly messing with your image quality (2048 / 640 = 3.2). You would need at least 17X optical zoom to make up the rest of the 20X zoom.
This assume that you are using a camera with digital zoom technology that zooms in on the picture as it digitally zooms, effectively cropping out the outside picture data. Some less expensive cameras simply "blow up" the pixels, which would degrade the image some. I'm familiar with Sony's digital cameras, which typically use the first of these two methods.
And as others have pointed out, at the zoom level you're talking about, a good image stabilization system in your camera should be your biggest concern. Even "blown out" footage is better than footage that is all over the place.
CaptainCaveMann said:I have no idea Heres the deal... Me and my friend sit up on top of this hill at the beach and we want to film eachother surfing and make a video. I have no clue what we need or what not but we were using my friends camera and it only had 10x zoom and it looked fine but it was just to far away. I will be editing it on a 1024x768 screen if that helps?? My friend has a powerbook and i think thats 1200x800 screen or something like that so i hope that answers the resolution question you asked. I was hoping the 350 dollar camera from cannon with 20x zoom would do the job. Were not rich and were also not looking for extremely good quality we just want to watch ourselves surf and make a decent video that is clear enough to see.