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Olympus E-450

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Olympus E-450
Olympus E-450.JPG
Overview
TypeDigital single-lens reflex
Lens
LensInterchangeable Four Thirds System
Sensor/medium
Sensor18.00 mm × 13.50 mm Live MOS
Maximum resolution3648 × 2736 (10 megapixels)
Film speed100–1600
Storage mediaCompactFlash (CF) (Type I or Type II) + xD Picture Card
Exposure/metering
Exposure modes49-zone multi-pattern
Exposure meteringTTL open-aperture exposure
Metering modesDigital ESP, Centre-Weighted Average, Spot, Highlight based spot, Shadow based spot
Shutter
ShutterComputerized focal-plane
Shutter speed range60 s – 1/4000 s
Continuous shooting3.5 frame/s
Viewfinder
ViewfinderOptical TTL
General
LCD screen2.7" TFT LCD, 230,000 pixels, live preview capable
BatteryLithium-Ion rechargeable
Weight380 g or 0.84 lb (body only, no battery)
Made inChina

The Olympus E-450 (or Olympus EVOLT E-450 in North America) is a 10.0 megapixel digital single-lens reflex (DSLR) camera made by Olympus and conforming to the Four Thirds System standard. E-450 was announced in March 2009, and shipping started in May the same year. E-450 is similar in size to its siblings in the E-4XX series, marketed as the smallest DSLRs in the world.[1]

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Features

The E-450 is a slightly upgraded version of the E-420. The cameras are very similar - in fact, when the E-450 was announced the upgrades were considered notably few by reviewers.[2] The main new features in the E-450:

  • Three Art Filters, where the camera processes the image to give it a new appearance. The filters available in E-450 are Pop Art, giving the image a very saturated look, Soft Focus making the images look "dreamy" similar to the effect of a diffusion filter on the lens, and Pin Hole, which gives a vignetting effect and makes the image look like it was taken by a pinhole camera.
  • TruePic III+ processor, an upgrade from the E-420 TruePic III processor.
  • Increased buffer for continuous shooting: the E-450 can buffer 8 RAW files compared to E-420's 6.
  • Improved luminance on the LCD screen.

As with its predecessors E-400, E-410 and E-420 the E-450 is notable for its portability, especially when coupled with the Olympus 25 mm f2.8 pancake lens. Its small size is achieved by omitting the side hand grip, in-body stabilisation, and larger battery featured in other Olympus dSLRs.

The E-450 uses Olympus' Supersonic Wave Filter to remove dust from the surface of the image sensor.

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Olympus E-420

Olympus E-420

The Olympus E-420 is a 10 megapixel digital single-lens reflex (DSLR) camera made by Olympus. The camera conforms to the Four Thirds System standard, and together with its siblings in the E-4XX series, it is marketed as the smallest DSLR in the world.

Vignetting

Vignetting

In photography and optics, vignetting is a reduction of an image's brightness or saturation toward the periphery compared to the image center. The word vignette, from the same root as vine, originally referred to a decorative border in a book. Later, the word came to be used for a photographic portrait that is clear at the center and fades off toward the edges. A similar effect is visible in photographs of projected images or videos off a projection screen, resulting in a so-called "hotspot" effect.

Pinhole camera

Pinhole camera

A pinhole camera is a simple camera without a lens but with a tiny aperture —effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect. The size of the images depends on the distance between the object and the pinhole.

Central processing unit

Central processing unit

A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions in the program. This contrasts with external components such as main memory and I/O circuitry, and specialized processors such as graphics processing units (GPUs).

Raw image format

Raw image format

A camera raw image file contains unprocessed or minimally processed data from the image sensor of either a digital camera, a motion picture film scanner, or other image scanner. Raw files are named so because they are not yet processed and therefore are not ready to be printed, viewed or edited with a bitmap graphics editor. Normally, the image is processed by a raw converter in a wide-gamut internal color space where precise adjustments can be made before conversion to a viewable file format such as JPEG or PNG for storage, printing, or further manipulation. There are dozens of raw formats in use by different manufacturers of digital image capture equipment.

Luminance

Luminance

Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through, is emitted from, or is reflected from a particular area, and falls within a given solid angle.

Olympus E-400

Olympus E-400

The Olympus E-400 is a digital single-lens reflex camera launched by Olympus on 14 September 2006, using the Four Thirds System lens mount standard. This 10 megapixel camera could be compared to other DSLRs unveiled during the summer of 2006 with comparable pixel count and price range: the Sony α 100, the Nikon D80, the Canon EOS 400D and the Pentax K10D.

Olympus E-410

Olympus E-410

The Olympus E-410 is a 10 megapixel digital single-lens reflex (DSLR) camera intended be the smallest and lightest DSLR on the market. Announced in March 2007 to succeed the E-400, it adds a live preview function and a new "Olympus TruePic III" processing chip that is claimed to provide better performance.

F-number

F-number

In optics, the f-number of an optical system such as a camera lens is the ratio of the system's focal length to the diameter of the entrance pupil. It is also known as the focal ratio, f-ratio, or f-stop, and is very important in photography. It is a dimensionless number that is a quantitative measure of lens speed; increasing the f-number is referred to as stopping down. The f-number is commonly indicated using a lower-case hooked f with the format f/N, where N is the f-number.

Pancake lens

Pancake lens

A pancake lens is colloquial term for a flat, thin camera lens assembly. The majority are a prime lens of normal or slightly wider angle of view. Some are zoom lenses.

Source: "Olympus E-450", Wikipedia, Wikimedia Foundation, (2022, November 25th), https://en.wikipedia.org/wiki/Olympus_E-450.

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References
  1. ^ Olympus E400 Digital Camera Review letsgodigital.org
  2. ^ Olympus launches E-450 compact DSLR dpreview.com 31 March 2009
External links

Media related to Olympus E-450 at Wikimedia Commons

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