The duration of an exposure is referred to as shutter speed, often even in cameras that do not have a physical shutter, and is typically measured in fractions of a second. It is quite possible to have exposures from one up to several seconds, usually for still-life subjects, and for night scenes exposure times can be several hours. However, longer shutter speeds blur motion, and shorter shutter speeds freeze motion. Therefore, moving subjects require fast shutter speeds.
Olympus OM-D E-M10 Mark II (All Black version). Panasonic Lumix 14-140mm f3.5/5.6 OIS. An excellent all round lens which cost around £400 new. Olympus M.Zuiko Digital 25mm f1.8. Fantastic for portraits.
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DSLR or Digital SLR (single lens reflex) cameras are aimed at serious photographers and the camera bodies and interchangeable lenses are often sold separately. Those who already own 35mm SLR lenses may want to look for a compatible DSLR body. To ensure that the lenses behave the same as they did with a 35mm SLR, look for digital SLR with a full-frame sensor. A semi-pro DSLR camera costs from about $500 to $3,000 or more, including a single lens. For more information about the cost of lenses see How Much Do Camera Lenses Cost. A DSLR offers all the features and creative control of a traditional 35mm SLR but the ease and convenience of the digital format. Expect a DSLR to offer a selection of lenses with different focal lengths, from wide angle to telephoto, as well as features such as multiple frames per second shooting, ideal for capturing fast moving subjects. A good example of a DSLR is the Nikon D60, a 10.2MP camera that, equipped with an AF-S DX Nikkor 18-55mm lens, costs about $600-$650.
Entry-Level: Entry-level cameras tend to be lightweight and portable with a pentamirror viewfinders. They are usually equipped with APS-C sensors, and they have about half a dozen exposure settings and auto modes.
This is a digital camera has been professionally modified to accept deeper Ultravoilet (UV) and Infrared (IR) light to allow photos deep into the normally unseen spectrum of light. It features an easy to use interface with plenty of features to make your job easier and capturing evidence more effective.
Like SLRs DSLRs typically use interchangeable lenses (1) with a proprietary lens mount. A movable mechanical mirror system (2) is switched down (exact 45-degree angle) to direct light from the lens over a matte focusing screen (5) via a condenser lens (6) and a pentaprism/pentamirror (7) to an optical viewfinder eyepiece (8). Most of the entry-level DSLRs use a pentamirror instead of the traditional pentaprism.
Despite being well over two years old, the Alpha A5000 is still a great buy for those looking a simple to use mirrorless camera. Not only that, but it’s also incredibly compact – even the 16-50mm lens isn’t that large considering the focal length. There’s a decent-sized tilt-angle screen, but the resolution is looking a bit behind the times now, while there’s no viewfinder. That said, it’s easy to use, while the Wi-Fi connectivity only adds to its appeal.
There are quite a few differences between the two, however. Despite being slightly older, the D500 has the edge over the D7500 in several departments, most notably in terms of its more advanced autofocus system (153 AF-points vs 51 AF-points), higher continuous shooting speed (10fps vs 8fps) and superior buffer performance.
Mirrorless (also known as compact system or micro four-thirds) cameras have many of the same features as larger DSLRs–such as interchangeable lenses–but in a more portable form, making them generally a better choice for travel. They’re called “mirrorless” because they don’t use a mirror to direct light through the lens to the viewfinder. Their image sensors aren’t quite as big, but image quality is nearly on a par with their larger brethren. Here’s a guide for taking better pictures with the Sony Alpha a6000 and a6300.
Some cameras have post focusing. Post focusing means take the pictures first and then focusing later at the personal computer. The camera uses many tiny lenses on the sensor to capture light from every camera angle of a scene and is called plenoptics technology. A current plenoptic camera design has 40,000 lenses working together to grab the optimal picture.
For decades, the DSLR (digital SLR) has been the top choice for anyone who wants to take their photography to the next level. Whether you’re a beginner or a pro, a DSLR offers three key ingredients: manual controls, excellent picture quality and interchangeable lenses.
With excellent photo and video quality and a deep feature set, the Panasonic Lumix DMC-FZ1000 is the perfect mix if you want dSLR-like controls and better than point-and-shoot performance with the convenience of a single fixed lens.
Mirrorless cameras have become increasingly popular, but there remain many reasons to invest in a DSLR. If you want to pursue photography seriously, or want to upgrade from your current DSLR, then you’ll want to cast your eyes over these best examples.
The EOS Rebel T7i (known as the EOS 800D outside) sits at the top of Canon’s entry-level EOS DSLR range. Sporting a newly designed 24.2MP sensor that delivers an improved high ISO performance over older models, the Rebel T7i’s autofocus also gets a boost, now with a 45-point arrangement that’s backed up by excellent live view AF system. There’s also newly designed graphical interface that will certainly make this camera even more appealing to new users, but the absence of 4K video and the quality of the exterior materials disappoint. Perhaps the most expensive option out there, but definitely one of the best.
A digital camera or digicam is a camera that captures photographs in digital memory. Most cameras produced today are digital, and while there are still dedicated compact cameras on the market, the use of dedicated digital cameras is dwindling, as digital cameras are now incorporated into many devices ranging from mobile devices to vehicles. However, expensive, high-end, high-definition dedicated cameras are still commonly used by professionals.
Beyond full-frame you move into the territory of medium format photography. In the film days, medium format referred to anything larger than 35mm and smaller than 4-by-5-inch. That’s a pretty big gamut. With digital you get the 33 by 44mm sensor size used by most of the mirrorless cameras that sell for less than $10,000—including Pentax’s SLR bodies, and mirroless options from Fujifilm and Hasselblad.