Bridge camera

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The Panasonic Lumix DMC-FZ50 bridge digital camera Panasonic Lumix DMC-FZ50 img 1017.jpg
The Panasonic Lumix DMC-FZ50 bridge digital camera
The Fujifilm FinePix S9000 bridge camera S9000.jpg
The Fujifilm FinePix S9000 bridge camera
The Konica Minolta DIMAGE A200 (2005) Konica Minolta alvesgaspar.jpg
The Konica Minolta DIMAGE A200 (2005)
A shot of the moon from a Nikon P530 42X superzoom bridge camera. Zoomed Moon on Nikon P530.jpg
A shot of the moon from a Nikon P530 42X superzoom bridge camera.
The Sony DSC-R1 Cybershot r1.jpg
The Sony DSC-R1

A bridge camera is a type of camera that fills the niche between relatively simple point-and-shoot cameras and interchangeable-lens cameras such as mirrorless cameras and single-lens reflex cameras (SLRs). [1] [2] [3] They are often comparable in size and weight to the smallest digital SLRs (DSLR), but lack interchangeable lenses, [1] and almost all digital bridge cameras lack an optical viewfinder system. The phrase "bridge camera" has been in use at least since the 1980s, [2] and continues to be used with digital cameras. [3] The term was originally used to refer to film cameras which "bridged the gap" between point-and-shoot cameras and SLRs. [4] [5]

Contents

Like other cameras, most current bridge cameras are digital. These cameras typically feature full manual controls over shutter speed, aperture, ISO sensitivity, color balance and metering. Generally, their feature sets are similar to consumer DSLRs, except for a smaller range of ISO sensitivity because of their typically smaller image sensor.

Many bridge cameras have long zoom lenses which now often start at a super wide-angle focal length of 20 or 22mm equivalent focal length (in 35mm film camera terms), so the term "bridge camera" is sometimes used interchangeably with "megazoom", "superzoom", [6] or "ultrazoom". [7] However, some bridge cameras have only moderate or short zooms (such as the Canon Powershot G9 [8] ), while many compact cameras have superzoom lenses but lack the advanced functions of a bridge camera.

With zoom ranges and sales rapidly increasing in the early 21st century, every major camera manufacturer has at least one superzoom camera in its lineup. [9]

Comparison to other camera types

Digital bridge cameras offer the convenience of a point-and-shoot in the form factor of a DSLR. The most notable physical similarity is the location of a bridge camera’s electronic viewfinder (EVF): centered above the lens like a DSLR’s optical viewfinder. While many digital point-and-shoots lack a viewfinder, almost every bridge camera includes an EVF, with the exception of the Canon G3 X (that offered it as an optional accessory) and some low-end models, such as the Nikon B600.

Like point-and-shoots and unlike DSLRs, bridge cameras are mirrorless. Because there is no lens mount (unlike on a mirrorless interchangeable-lens camera), the lens assembly of a bridge camera is able to extend into the body almost all the way to the sensor, [10] making more efficient use of the space.

All current models include a power zoom lens that retracts when not in use and is controlled by a lever on the body like on a point-and-shoot, but a few past models such as the Fujifilm X-S1 and S9000 included a manual zoom lens controlled by a ring on the lens like on an interchangeable-lens camera. Unlike most point-and-shoots with a zoom lens, bridge cameras require a manual lens cap, as they do not include an automatic lens cover.

The additional size of a bridge camera compared to a compact camera makes room to fit a larger image sensor, a lens with a larger aperture or longer zoom, or some combination of both. For example, the Sony RX100 VII (compact camera) and RX10 (bridge camera) have the same zoom range (24mm to 200mm equiv.), but the RX100 VII’s maximum aperture at 200mm is f/4.5, whereas the RX10’s maximum aperture at 200mm is f/2.8, which means it can collect over twice [11] the amount of light. Likewise, the Canon SX620 (compact camera) and G3 X (bridge camera) both have a 25× optical zoom, but the G3 X’s sensor is over 4 times as large as the SX620’s. Superzoom compact cameras have reached up to 40× optical zoom, whereas bridge cameras have reached up to 125× optical zoom.

One fixed but versatile lens

Bridge cameras typically have small image sensors, allowing their lenses also to be smaller than a 35mm or APS-C SLR lens covering the same zoom range. As a result, very large zoom ranges (from wide-angle to telephoto, including macro) are feasible with one lens. The typical bridge camera has a telephoto zoom limit of over 400mm (35mm equivalent), although some 21st-century cameras reach up to 2000mm. [12] For this reason, bridge cameras typically fall into the category of superzoom cameras. [13]

The 24× Zoom Nikkor ED 4.6-110.4mm f2.8-5.0 on the Nikon Coolpix P90, which in 35 mm equivalent focal length terms is a 26-624mm. [14]

LCDs and EVFs as principal viewfinders

Bridge cameras employ two types of electronic screens as viewfinders: The LCD and the electronic viewfinder (EVF). All bridge cameras have an LCD with live-preview and usually in addition either an EVF or an optical viewfinder (OVF) (non-parallax-free, as opposed to the OVF of DSLRs, which is parallax-free). A high-quality EVF is one of the advanced features that distinguish bridge cameras from consumer compact cameras.

All DSLRs, by definition, have a through-the-lens OVF. Newer DSLR models typically also allow "live view" on the LCD screen as an alternative to the OVF, although frequently without autofocus or with very slow autofocus when in that mode. Mirrorless interchangeable lens cameras, which like bridge cameras are mirrorless, rely on electronic viewfinders or LCD screens and generally do not sacrifice autofocus features when using these displays.

Sony Cyber-shot DSC-RX10 (2014) - a bridge camera that sports a large 1 inch sensor Sony Cyber-shot DSC-RX10.jpg
Sony Cyber-shot DSC-RX10 (2014) - a bridge camera that sports a large 1 inch sensor
Panasonic LUMIX DMC-FZ1000 large sensor Bridge camera Panasonic LUMIX DMC-FZ1000.jpg
Panasonic LUMIX DMC-FZ1000 large sensor Bridge camera
1st Quarter Moon taken with Panasonic FZ1000 1st Quarter Moon.jpg
1st Quarter Moon taken with Panasonic FZ1000

Large-sensor bridge cameras

Just as in compact cameras, there is a trend towards larger sensors in bridge cameras, as well. Sony started the category of 1 inch sensor equipped bridge cameras in 2012 with the Sony Cyber-shot DSC-RX100, followed in late 2013 with the release of the Sony RX10. In 2014, Panasonic followed this with the FZ1000, which has a larger zoom range, up to 400mm equivalent (Sony's RX10 goes to 200mm equivalent). In contrast with the RX10's constant f/2.8 widest aperture Zeiss lens, the Panasonic FZ1000 has a variable f/2.8 to f/4 Leica creation. Sony's DSC-R1 issued as early as 2005 has a 10MP APS-sized sensor combined with a Zeiss zoom lens. In terms of image quality, these cameras are comparable to Canon's DSLRs [15] and similarly priced.

Bridge camera

Market

In late 2012, Techradar wrote that while the general compact camera market was on a downturn, the DSLR-like bridge camera market was continuing well. [16] In 2014, CNET mentioned that for the last couple of years, Fujifilm focused on producing rugged compact cameras and bridge cameras as those segments continue to show strong sales. [17]

See also

Related Research Articles

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<span class="mw-page-title-main">Digital camera</span> Camera that captures photographs or video in digital format

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<span class="mw-page-title-main">Electronic viewfinder</span> Viewfinder using a small screen

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<span class="mw-page-title-main">Point-and-shoot camera</span> Type of simple still camera

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<span class="mw-page-title-main">Digital single-lens reflex camera</span> Digital cameras combining the parts of a single-lens reflex camera and a digital camera back

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<span class="mw-page-title-main">Sigma Corporation</span> Japanese camera and camera lens manufacturer

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<span class="mw-page-title-main">Sony Cyber-shot DSC-R1</span> Camera model

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<span class="mw-page-title-main">Live preview</span>

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<span class="mw-page-title-main">Mirrorless camera</span> Compact camera with a user-removable and replaceable lens

A mirrorless camera is a digital camera which, in contrast to DSLRs, does not use a mirror in order to ensure that the image presented to the photographer through the viewfinder is identical to that taken by the camera. They have come to replace DSLRs, which have historically dominated interchangeable lens cameras. Other terms include electronic viewfinder interchangeable lens (EVIL) cameras and compact system cameras (CSCs).

The Sony Cyber-shot DSC-RX100 series is a high-end compact camera part of the wider Sony RX series. It started with the DSC-RX100, announced on 6 June 2012, and is part of the Cyber-shot RX line of digital cameras made by Sony. Seven annual generations have been released so far until 2019, all equipped with a one-inch 20-Megapixel image sensor and rotary knob around the lens. Filming at up to 1080p at 60fps is supported by the first three generations, the third additionally with 720p at 120fps, and up to 2160p (4K) at 30fps and 1080p at 120fps high frame rate video since the fourth.

<span class="mw-page-title-main">Sony RX</span> Digital camera range

The Sony RX is the name of a range of fixed lens compact point-and-shoot digital cameras created by Sony in 2012. All cameras are equipped with Carl Zeiss lenses.

References

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  9. "Best Superzoom Cameras 2010". Safari-guide.co.uk. Retrieved 2010-12-30.
  10. "Sony RX10 III with extended 25x super-telephoto zoom lens with focal range of 24-600mm launched".
  11. (4.5 ÷ 2.8)2 > 2
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  15. "Camera Sensor Ratings by DxOMark" . Retrieved October 15, 2014.
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