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09/27/2003 03:19:28 PM · #1 |
What is the advantage of SLR cameras vs normal ones. And what does SLR-like mean? Thanks,
Dan Hseuh |
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09/27/2003 03:29:14 PM · #2 |
Originally posted by traser:
What is the advantage of SLR cameras vs normal ones. And what does SLR-like mean? Thanks,
Dan Hseuh |
SLR- Stands for Single_Lens Reflex . A mirror or prism reflects the light coming in throught the lens to the viewfinder, so when you look through it you see exactly what the camera sees. This is very useful for framing your pictures accurately. It is only found on a some of the most expensive digicams, although is standard on many pro film cameras.
All those huge cameras you see at sports events are SLR cameras.
You basically have more controls over normal cameras.
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09/27/2003 03:46:02 PM · #3 |
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09/27/2003 08:44:53 PM · #4 |
| actually that link just goes to some games |
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09/27/2003 08:50:56 PM · #5 |
that is a fascinating explanation OSS!! i've never considered it from that angle before |
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09/27/2003 08:59:03 PM · #6 |
Originally posted by achiral:
that is a fascinating explanation OSS!! i've never considered it from that angle before |
OOOPS Sorry there was a pop up came in over top of this earlier when I was on another pc
//science.howstuffworks.com/camera7.htm
there try that explanation...sorry didn't see that sooner. |
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09/27/2003 09:35:25 PM · #7 |
This surely is not an exhaustive list on advantages and disadvantages, but it's a start.
Advantages of an SLR:
Optics Quality: SLR cameras don't have fixed lenses. (Okay, a few do, but I'm not counting them in this point.) Instead, each camera maker offers a line of lenses that will work with the camera. Typically, these lenses have better optics than fixed lenses. The more you spend, the better the optics.
What you see is [almost] what you get: When you look in the view finder of an SLR camera, you are actually looking directly through the barrel of the lense. In other camera configurations, you are looking through a view finder that has a little bit of a different perspective of your frame than what will be captured on film or your image sensor.
Craftsmanship is generally better: Before I bought the Canon 10D, I was using the Canon G2 and the Nikon 5700. Both cameras were nice, but certain features could have been better. For instance, the 10D has a much quicker shutter response than both of the other two digital cameras. It almost seems as if the shutter opens simultaneously to pressing the shutter button. I also enjoy much faster auto focus with the 10D. Both other cameras were relatively slow.
Disadvantage of SLR:
Can't compose pictures using the digital screen: In most digital cameras that aren't SLR, you can either use the view finder or the digital screen on the back of the camera to compose your shot. However, this is nearly impossible on an SLR. To allow you to look through the barrel of the lens using the view finder, SLR cameras have a mirror that sits directly in front of the film or sensor. When you click the shutter, the mirror flips up and the image goes directly to the film or sensor. Since the sensor needs to "see" the image to display it on the digital screen, it cannot be viewed while the mirror is down.
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09/29/2003 07:06:11 AM · #8 |
Originally posted by SysUs:
Disadvantage of SLR:
Can't compose pictures using the digital screen: In most digital cameras that aren't SLR, you can either use the view finder or the digital screen on the back of the camera to compose your shot. However, this is nearly impossible on an SLR. To allow you to look through the barrel of the lens using the view finder, SLR cameras have a mirror that sits directly in front of the film or sensor. When you click the shutter, the mirror flips up and the image goes directly to the film or sensor. Since the sensor needs to "see" the image to display it on the digital screen, it cannot be viewed while the mirror is down. |
i'd have to say that that's the only real disadvantage i can think of. there are times when i use my camera that it's far easier to view the image on the back of the screen rather than the viewfinder... and on an SLR that wouldn't be possible... cost is the only other problem, but that's not an issue to some folks :)
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09/29/2003 07:21:38 AM · #9 |
So more advantages and disadvantages for your list:
Advantages:
- Cool 'Click' when the shutter opens and closes
- Larger CCD/CMOS sensors tend to produce less noice
- Investment in 35mm lenses can be carried forward to new bodies
Disadvantages:
- SLRs tend to be larger and heavier than point-and-shoot. |
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09/29/2003 09:52:10 AM · #10 |
Some more considerations, though most of these aren't actually advantages or disadvantages: it just depends what you need. The right tool for the right job and all that.
More controllable DoF with an SLR than with most digicams, so you can blur the shot. Either a positive if you want to shoot portraits, or a negative if you want to shoot landscapes and macros.
Camera is larger and heavier hence more stable and more noticeable, great unless you want to do candid photography.
Interchangable lenses give you more focal length choices - good if you know what you need, lets dust and dirt into the internals every time you open it up.
SLRs tend to have larger sensors in them, producing bigger captures - good if you want to make bigger prints, bad if your computer can't cope with the processing and storage requirements.
Looking through the viewfinder lets you see exactly 'what the film sees' including being able to preview DoF by stopping down the lens to the actual aperture. Also SLRs don't suffer from parallax errors like a point and shoot, so mostly (about 95%) of what you see is what you'll get, unlike a point and shoot viewfinder which is often up to only 75% accurate. Also means your eye has to be at the viewfinder to see the view, unlike something like the canon G2, where you can hold it at the end of a monopod and still compose an image using the tilt LCD.
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