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02/06/2006 06:33:32 AM · #1 |
How do you differentiate a digital SLR from a non-SLR digital camera?
Are these cameras digital SLRs:
Canon S1 IS
Nikon D70
Canon EOS 350D
Help please. |
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02/06/2006 06:57:49 AM · #2 |
Hi-ho,
An SLR has an optical viewfinder that uses a mirror behind the lens to reflect the image onto the viewfinder (often via a pentaprisim).
The Canon S1 IS is not an SLR, the other two you list (D70 and 350D) are.
SLR's generally have interchangeable lenses as well.
Some reading:
//en.wikipedia.org/wiki/SLR_camera
In terms of digital, dSLR's generally have higher image quality, and more features than non SLR's.. But that's a whole other question! ;-).
Cheers, Chris H.
Message edited by author 2006-02-06 06:59:37. |
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02/06/2006 07:01:23 AM · #3 |
Originally posted by KiwiChris:
In terms of digital, dSLR's generally have higher image quality, and more features than non SLR's.. |
Actually, in terms of features, non-slrs often carry a whole bag of tricks with them: movie capture functions, b&w modes, sepia and can make coffee if you attach the correct 49mm filter. |
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02/06/2006 07:27:24 AM · #4 |
The additional features are decent and nice, but while a decent picture can come out of a non-DSLR, in the vast majority of situations, the bottom line of taking pictures will be clearly and obviously easier with the DSLR.
I own a non-DSLR because I intend to have 2 cameras. One camera is a compromise on photographic quality because I actually want the other features. The next camera will be much less of a compromise. I will own both, but with the understanding that the DSLR will be better for taking pictures. |
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02/06/2006 11:36:33 PM · #5 |
Originally posted by KiwiChris:
Hi-ho,
An SLR has an optical viewfinder that uses a mirror behind the lens to reflect the image onto the viewfinder (often via a pentaprisim).
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Canon S1 IS has an electronic viewfinder, a variable shutter speed and aperture, and a 10x zoom lens. Is it not the digital SLR type? |
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02/06/2006 11:42:00 PM · #6 |
Originally posted by kbhatia1967:
Originally posted by KiwiChris:
Hi-ho,
An SLR has an optical viewfinder that uses a mirror behind the lens to reflect the image onto the viewfinder (often via a pentaprisim).
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Canon S1 IS has an electronic viewfinder, a variable shutter speed and aperture, and a 10x zoom lens. Is it not the digital SLR type? |
No.
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02/06/2006 11:44:19 PM · #7 |
Originally posted by kbhatia1967:
Originally posted by KiwiChris:
Hi-ho,
An SLR has an optical viewfinder that uses a mirror behind the lens to reflect the image onto the viewfinder (often via a pentaprisim).
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Canon S1 IS has an electronic viewfinder, a variable shutter speed and aperture, and a 10x zoom lens. Is it not the digital SLR type? |
Still, the lens is not interchangeable. SLR means Single Lens Reflex, the electronics viewfinder on the S1 IS display images captured by the CCD (the sensor) wich would be impossible if you had a reflex system in the camera. For variable shutter speed and aperture, every digital camera in the world have the possibilty to vary shutter speed and aperture. Even the ones with no names but you have a better lens and the ability to control it yourself instead of the camera doing all the job all the time. If it does not have an optical viewfinder that show you the images that comes through the lens, it's not an SLR.
Message edited by author 2006-02-06 23:48:42.
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02/06/2006 11:48:23 PM · #8 |
SLR: Single Lens Reflex. The reflex part means you see the actual image the sensor sees because you are looking directly through the lens via a prism or mirror. EVF (electronic view finders) do not qualify because they take the electronic image output from the sensor and then display that in the tiny little electronic display. A world of difference in focusing and composing accuracy, that tiny little evf just does not have sufficient resolution to compete.
With one notable exception (the Sony R1) evf cameras utilize a much smaller sensor than DSLRs that is much more prone to sensor noise. That is not to say that very fine images can't be captured with non-DSLR cameras, but the task is more difficult. |
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02/06/2006 11:57:41 PM · #9 |
Canon S1 IS actually falls into category for "Like SLR" Cameras. It is not a SLR but its more than just point and shoot. It offers some of the SLR features (Manual Mode, Aperture Priority etc). You can get mode details at //www.dpreview.com/reviews/canons1is/.
Well...by strict defination (for 35mm film role cameras), SLR offers you view-finder which actually lets you see what the lens sees. But somehow even I'm confused with defination of SLR in digital world. What I see on my LCD screen of camera is same as what my CCD sees thru lens which should make every PnS a SLR (if defination was purely based on "Seeing what lens sees").
Offcourse there is limitation of not being able to change lenses... but than does it mean that if I use my SLR with more generic lens, which I dont change, it is not more a SLR?!
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02/07/2006 12:51:58 AM · #10 |
Originally posted by kbhatia1967:
How do you differentiate a digital SLR from a non-SLR digital camera?
Are these cameras digital SLRs:
Canon S1 IS
Nikon D70
Canon EOS 350D
Help please. |
The D70 and the 350D are dSLRs, while the S1 IS is not.
I would call the S1 IS a prosumer camera.
While the real definition of an SLR (digital or film) is about how the lens reflex, I would usually tell a newbie this layman method of recognizing an SLR. It's not accurate of course, but it usually is right. Here goes. "SLR cameras can change the entire lens" ;) |
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02/07/2006 12:53:44 AM · #11 |
Originally posted by nicklevy:
SLR means Single Lens Reflex, the electronics viewfinder on the S1 IS display images captured by the CCD (the sensor) wich would be impossible if you had a reflex system in the camera. |
It's now possible with new designs, cheers!
You can have live display on a dSLR camera :) |
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02/07/2006 12:57:03 AM · #12 |
| The S2 IS is a major upgrade, and it probably worth the price difference. This model has a pretty significant shutter-lag issue, which is another difference: true SLRs usually perform far better in this respect than SLR-like or P&S cameras. |
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02/08/2006 04:53:05 AM · #13 |
What is the single feature that distinguishes a Digital-SLR from non SLR digital?
Is it Optical viewfinder (consisting of pentaprism)?
Or is it removablable lens?
Or something else? |
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02/08/2006 04:56:47 AM · #14 |
| Optical viewfinder (consisting of pentaprism or mirror) |
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02/08/2006 05:18:44 AM · #15 |
Originally posted by kbhatia1967:
What is the single feature that distinguishes a Digital-SLR from non SLR digital?
Is it Optical viewfinder (consisting of pentaprism)?
Or is it removablable lens?
Or something else? |
i would say, the single lens reflex in the camera's design.
Message edited by author 2006-02-08 05:19:06. |
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02/08/2006 09:45:01 AM · #16 |
My particular camera, the Sony DSC-H1, seems to be an slr because you can get lenses for it and you can adjust focus to a point, and it has a viewfinder in the upper left corner that you can look through, just like an slr. However, it is not an slr because of the fact that it has no mirror. I cannot adjust my aperture, focus, etc through the attachable conversion lenses. I can only adjust them through controls on the actual camera. However, it can be classed as a prosumer camera, which is one step below an slr, and it does seem to have some very good capability to capture detail. Anyway, when and if Sony-Konica come out with a dslr, I have enjoyed this camera so much that I think I will probably be one of the first in line for whatever they come up with.
Message edited by author 2006-02-08 09:46:02. |
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02/08/2006 10:07:47 AM · #17 |
What issue is that?
Originally posted by GeneralE:
The S2 IS is a major upgrade, and it probably worth the price difference. This model has a pretty significant shutter-lag issue, which is another difference: true SLRs usually perform far better in this respect than SLR-like or P&S cameras. |
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02/11/2006 08:36:12 PM · #18 |
| The most obvious difference that makes an SLR an SLR is that it has the mirror/pentaprism that deflects the image up to the optical viewfinder. When you take the picture, that mirror is flipped out of the way for a prescribed amount of time (the shutter speed) in order for the sensor to record the image. And generally, that sensor is larger and better than the ones in point & shoot (non-SLR) cameras. In a P&S digital camera, the sensor is constantly exposed to the light coming through the camera, which is why you get the live image in the LCD monitor and can take movies with it. When you snap a picture with a P&S, it just records what hits the sensor during the prescribed amount of time ("shutter speed") but there isn't really a shutter. P&S cameras that say they have an optical viewfinder really just have a window through the camera body that attempts to replicate what the lens would see. |
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02/11/2006 08:47:02 PM · #19 |
Originally posted by Gunnsi:
What issue is that?
Originally posted by GeneralE:
The S2 IS is a major upgrade, and it probably worth the price difference. This model has a pretty significant shutter-lag issue, which is another difference: true SLRs usually perform far better in this respect than SLR-like or P&S cameras. |
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The shutter-lag is just too d****d long for most action shot usage. Most P&S and "SLR-like" cameras have this problem to some degree; one of the overall advantages of dSLR cameras is their much shorter performance times in almost all areas. |
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02/11/2006 08:54:13 PM · #20 |
The shutter lag on my Fuji is enough that I have lots of shots of the back of my grandchildren's heads. Unless the shot is static or posed, it can drive you crazy.
On a DSLR, you don't have that.
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02/11/2006 09:37:27 PM · #21 |
This is one of the last action shots I got with my S1 IS before it got stolen ...
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02/17/2006 10:55:30 PM · #22 |
Originally posted by GeneralE:
This is one of the last action shots I got with my S1 IS before it got stolen ...
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This camera is worth stealing. (But I didn't steal yours!) |
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