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Honeywell RCWL300A1006 Premium Portable Wireless Door Chime and Push Button $29.95 The Honeywell RCWL300A P3 Premium Portable Wireless Door Chime and Push Button makes it easy to replace your home’s generic doorbell ring with a chime tune that better fits your individual style. This chime is also compatible with a wide range of optional security accessories that can help you safeguard your home and family, and it comes complete with a pre-programmed bell push button. .caption … |
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GE 51107 Smart Home Wireless Alarm System Kit $19.99 The GE 51107 Personal Security Alarm Kit includes everything you need to help secure your home, including a deluxe door alarm with a four-digit keypad and three independent window alarms. Best of all, there’s no wiring or drilling required for installation. This simple-to-use, cost-effective security solution helps protect you and your family against home invasions thanks to each of the 120-decibe… |
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Black & Decker TLD100 Thermal Leak Detector $23.99 The Black & Decker thermal leak detector helps you increase the efficiency of your home’s insulation by finding leaky areas that can lead to higher heating and cooling bills. You’ll instantly identify problem areas around drafty windows and doors, and uncover hidden leaks and insulation “soft spots” around your home. Check windows, ducts, and walls with the thermal reference light that indicates h… |
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NIX 15 Inch Hi-Resolution Digital Picture Frame, 1GB Internal Memory, Photo, Video, Music, Split Screen Option – Plug & Play X15A $139.99 The NIX N’ EASY X15A is an easy to use, extra-large plug and play frame. Featuring a huge Hi Resolution 15 inch LCD Active Matrix screen and a 1GB internal memory. The X15A is capable of playing photos (JPEG), video (MPEG-4 / .AVI) and music (MP3). A remote control with easy short cut buttons allows you to switch from playing photos to video to music with just a single touch of the remote. This fr… |
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Sony NEX-5N 16.1 MP Compact Interchangeable Lens Touchscreen Camera with 18-55mm Lens (Black) $698.00 Get the interchangeable lens camera of your dreams capable of capturing astonishing 16.1MP stills or full 1920×1080 HD video in about half the size as its DSLR counterparts. The Alpha NEX-5N is the interchangeable lens camera that fits in your pocket. Enjoy Full HD 1080/60p or 24p movies, astounding low-light pictures, continuous shooting up to 10 fps, incredible panorama shots and a 3.0-inch tilt… |
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Tamron AF 18-270mm f/3.5-6.3 Di II VC PZD LD Aspherical IF Macro Zoom Lens for Canon DSLR Cameras $649.00 Tamron’s next generation 18-270mm, the world’s lightest, smallest 15x zoom optimized for use on APS-C- DSLRs, continues the pursuit of the ideal all-in one zoom lens. Combining prior award-winning achievements with new engineering breakthroughs yielded the remarkable 18-270mm F/3.5-6.3 Di II VC PZD (Piezo Drive). Special piezoelectric technology now delivers faster, quieter precision autofocusing…. |
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Pyle PLCM36 3.5-Inch Slim TFT LCD Universal Mount Monitor with License Plate Mount Rear-view Night Vision Backup Camera $139.99 SCREEN FEATURES:3.5″ SLIM TFT LCD STAND MONITORAUTOMATICALLY SWITCHES ON WHEN REVERSINGPAL/NTSC COMPATIBLEAUTO SWITCHINGBRIGHTNESS: 200 CD/M2CONTRAST RATIO: 200:12 VIDEO INPUTSDIM: 3.7″W X 3.3″H X .67″D;CAMERA FEATURES:PAL/NTSC COMPATIBLE380 TV LINES RESOLUTION X 60 FIELDSIMAGE SENSOR: OV7910 COLOR CMOSLENS: 6MM 92 NIGHT VISIONBACKUP CAMERALOW LIGHT ILLUMINATION: 1.5 LUX/ F1.2VIDEO OUTPUT: RCA 1.0… |
Digital Camera Larger Sensor
Does a camera’s sensor size affect apeture settings?
This is all example, so keep that in mind…
So I have a film camera with a 50mm f/1.8 on it. I take that off of the film camera and put it on a digital, say for example, an Olympus, and keep it at f/1.8. With the same aperture setting have a different depth of field on a smaller film (or sensor size)?
It seems like it should, cause the aperture is larger in comparison. So on a 4/3 system, an f/1.8 might be like a f/1.4 or something. But I don’t know this for a fact. If anyone could help me out, with a link or something, that’d be cool…
Aperture is aperture as far as the amonut of light that it admits, as many have told you. I notice this one point in your question, though, that makes me think that this is not actually what you want to know about. You ask, “With the same aperture setting have a different depth of field on a smaller film (or sensor size)?” The answer to this is that a smaller sensor will have greater depth of field than a larger sensor if the focal length and aperture are the same.
This gets confusing because we so often refer to the “equivalent” focal length instead of the actual focal length. On a small sensor camera, the actual focal lengths are ridiculously wide. Most of the more popular point and shoot cameras have the smaller sensors. It’s only about 5 mm wide and 4 mm high. The 3X lens required to cover that angle of view is an ACTUAL 6-17 mm zoom lens. (With a 6X crop factor, this “becomes” 36-102 mm.) At these focal lengths, the background is going to almost always be in pretty sharp focus, no matter what the aperture setting is.
On a 4/3 system, the crop factor is 2X. A “normal” lens is then 24-25 mm, which is what you commonly see. You know that a 24 mm lens on a 35 mm camera has quite a lot of “depth of field.” When you put it in front of the 4/3 sensor, it gives an apparent “normal” view at an “equivalent” focal length of 50 mm (because the smaller sensor crops off the outer edges of the potnential image), but it still has just as much depth of field as if it was in front of a full frame – film or sensor. It’s not that the f/1.8 is like an f/1.4. It’s that a 24 mm lens is always a 24 mm lens, regardless of whether you are treating it like it was a 48 mm lens or a 24 mm lens.
Digital Cameras Buying Guide—3 Types of Digital Cameras
Digital Single Lens Reflexes (DSLRs)
Digital SLRs, also called “DSLRs” are expensive, and until recently were used almost only by professional photographers. Prices have come down considerably over the years for an entry level DSLR like the popular Canon Rebel. However, when you buy an DSLR, you also have to buy lenses. Some DSLRs do come with a basic starter lens so you’ll be able to start taking pictures right away. If you want to take some pictures of something far away, you can’t just push a button to zoom but will need to get a telephoto lens. These come in all sorts of sizes to fit the photographer’s needs. You can also buy quality used equipment if you need to keep your costs low.
One of the great benefits of DSLRs is that you can get telephoto lenses that will let you take a close up of a bird on the top of a tree and you’ll never be able to tell from the picture that the bird was so far away. And they are lightning fast! That means you won’t miss actions shots because the camera took too long to record the picture after you pressed the shutter release button.
DSLRs also work with accessories like external flashes and filters to give you more options when shooting. DSLRs are great for taking action pictures in low light situations where a flash isn’t allowed or won’t reach.
Because of their large sensors, you can increase ISO to get pictures in low light while still having a high shutter speed to capture action. Other camera’s smaller sensors mean that when you increase ISO sufficiently to get these shots, you end up with digital noise, a colorful, unsightly graininess. This can sometimes be removed with software but the DSLR allows you to avoid the whole mess.
These days, the main disadvantage of a DSLR is the higher price tag when you compare it to other types of cameras.
It’s a nice NB-5L camera to upgrade to if you discover you really love taking pictures and want to advance. Many get started with a camera body and kit lens, and then add bigger lenses over time.
Point & Shoot Digital Cameras (also called compact or automatic cameras)
Digital compact cameras (or point and shoots) are the most popular type of camera for good reason. Compact cameras can take such good quality pictures these days that many professional photographers will also use compact cameras for when they don’t want to carry around their DSLR gear. (Pocket size compacts are often called subcompacts).
As mentioned above, compacts biggest benefits is their small and compact size. Unlike DSLRs which usually require a small bag of camera gear (if you have a couple of lenses) these cameras can go virtually anywhere.
And while you can just point and shoot with these NB-2L cameras, many have all sorts of modes from which to choose, and plus some also give you some manual controls, such as Aperture Priority and Shutter Speed Priority. If it has optical zoom, you can also get some great telephoto shots too!
Bridge Cameras
These digital cameras bridge a gap between compact cameras and DSLRs. They are considered a blend between professional and consumer so they’re also called “prosumer” cameras.
Most bridge cameras are more expensive than compacts but are less expensive than most Digital SLRs as you won’t have to buy extra lenses like with a DSLR.
Bridge cameras have larger sensors and offer more mega pixels than most compacts. Because of the larger sensor, you can increase ISO more than on a compact but not nearly as high as with an DSLR. If you don’t need to get action shots in places without good lighting, this may never be an issue.
Many bridge cameras have hot shoes to work with external flash, meaning you can get better indoors pictures. Bridge cameras also have movie mode and let you compose pictures on the LCD screen. Many also have super zooms. This means they have optical zoom ranges of 10x to 20x. Plus bridge cameras have almost or as many manual controls as DSLRs.
Once you decide what type of camera you want (DSLR, bridge or compact), selecting a camera will be a lot less confusing. When you get your new NB-4L camera, make sure to take time to learn how to use your camera properly so you’ll be able to start taking some great pictures right away.
About the Author
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