Q. I have searched Google but I would still like someone to confirm that the bigger the optical zoom the better, i.e. 40x optical zoom is better than 10x optical zoom.
I was out with my parents today looking at camcorders and the Sony staff member told us that the less the better. Actually, what I think he said was the less optical zoom the better the quality. (Maybe all three of us heard him wrong and he was talking about digital zoom) Does having, say, a 25x rather than a 40x have any advantage in any way?
So, optical zoom is better... the bigger the number? The DCR-SR35E costs �399, has 30 GB, 40x optical zoom. The DCR-SR75E costs �599, has 60 GB, 25x optical zoom. The still pictures have a difference of 200,000 pixels. I'm just wondering why the more expensive one has an inferior optical zoom.
I was out with my parents today looking at camcorders and the Sony staff member told us that the less the better. Actually, what I think he said was the less optical zoom the better the quality. (Maybe all three of us heard him wrong and he was talking about digital zoom) Does having, say, a 25x rather than a 40x have any advantage in any way?
So, optical zoom is better... the bigger the number? The DCR-SR35E costs �399, has 30 GB, 40x optical zoom. The DCR-SR75E costs �599, has 60 GB, 25x optical zoom. The still pictures have a difference of 200,000 pixels. I'm just wondering why the more expensive one has an inferior optical zoom.
A. Looks like you are having fun out there :)
DCR-SR75E with the 25x optical zoom is the winning choice, due to its lens system.
Do not be tempted by the lower price and the 40x zoom on the other one. Being honest, you will never need the 40x zoom - and when you Do zoom @ 40x, I doubt it will be anything satisfactory.
In real life conditions, we hardly zoom over 3x for landscape and 8x for portraiture.
If your budget is right, go there again with your parents and get the DCR-SR75E !
p.s - you should also try out a few Canon camcorders if they are available there :)
DCR-SR75E with the 25x optical zoom is the winning choice, due to its lens system.
Do not be tempted by the lower price and the 40x zoom on the other one. Being honest, you will never need the 40x zoom - and when you Do zoom @ 40x, I doubt it will be anything satisfactory.
In real life conditions, we hardly zoom over 3x for landscape and 8x for portraiture.
If your budget is right, go there again with your parents and get the DCR-SR75E !
p.s - you should also try out a few Canon camcorders if they are available there :)
camcorders: what is dynamic zoom?
Q. Also, I've heard of optical and digital image stabilization, but what is electronic image stabilization?
What is advanced image stabilization then?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ok two more questions:
Is it important for a camcorder to take SD cards?
Also, is HD much better than SD? Does HD perform better under low light?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I'm buying a camcorder, can you tell? ;)
is dynamic or optical better?
What is advanced image stabilization then?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ok two more questions:
Is it important for a camcorder to take SD cards?
Also, is HD much better than SD? Does HD perform better under low light?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I'm buying a camcorder, can you tell? ;)
is dynamic or optical better?
A. EIS works reasonably well with high megapixel CCDs. EIS reduces the availble resolution so it helps to start with more pixels than needed. OIS uses optics to correct vibration so the full resolution of the CCD is not affected. There are times when stabilization is not desirable so it is best if either can be selected when needed. OIS not only keeps resolution, but unlike EIS it also eliminates motion blur. EIS will have blur at slower shutter settings. EIS is used mostly for video where some motion blur is tolorable and recorded pixels are much less than commonly used for still photography.
For still photography, optical zoom is best. For video, its a mixed bag. Now that megapixel CCDs are used in some cameras, 4x or 5x digital zoom can be used with little recorded resolution loss. Cameras cannot employ digital zoom and EIS at the same time. For a pocket camera, like the Flip or Kodak Zi8, the lens is fixed so there is no optical zoom, but the digital zoom compensates. When the zoom is less than 6x, stabilazation is not needed, so the loss of EIS capability is not a problem with these.
Low light performance is a function of CCD megapixels rather than SD or HD recording per se. Less pixels will get more light energy from the lens, so its a case of less is more. HD cameras, especially HD camera with megapixal CCDs have poor low light capability. Another situation is high megapixel CCDs have to be interpolated to produce a video picture. So a correctly sized (aka native resolution) CCD array (680k for SD, 3 MP for HD) will produce a shaper resolution picture than an over-sized megapixel CCD imager.
For still photography, optical zoom is best. For video, its a mixed bag. Now that megapixel CCDs are used in some cameras, 4x or 5x digital zoom can be used with little recorded resolution loss. Cameras cannot employ digital zoom and EIS at the same time. For a pocket camera, like the Flip or Kodak Zi8, the lens is fixed so there is no optical zoom, but the digital zoom compensates. When the zoom is less than 6x, stabilazation is not needed, so the loss of EIS capability is not a problem with these.
Low light performance is a function of CCD megapixels rather than SD or HD recording per se. Less pixels will get more light energy from the lens, so its a case of less is more. HD cameras, especially HD camera with megapixal CCDs have poor low light capability. Another situation is high megapixel CCDs have to be interpolated to produce a video picture. So a correctly sized (aka native resolution) CCD array (680k for SD, 3 MP for HD) will produce a shaper resolution picture than an over-sized megapixel CCD imager.
Powered by Yahoo! Answers
Tidak ada komentar:
Posting Komentar