Canon EOS 20D

Last updated

Canon EOS 20D
Canon EOS 20D front.jpg
Overview
Type Single-lens reflex
Lens
Lens Interchangeable (EF/EF-S)
Sensor/medium
Sensor 22.5 mm × 15.0 mm CMOS
Maximum resolution 3,520 × 2,344 (8.25 megapixels)
Film speed 100–1600 in 1 EV steps, 3200 in extended mode
Storage media CompactFlash (CF) (Type I or Type II) and Microdrive (MD) / max 8GB (The camera can format up to 8GB, but can use larger cards. [ citation needed ])
Focusing
Focus modesOne-shot, AI servo, AI Focus, Manual
Focus areas9 autofocus points
Focus bracketing none
Exposure/metering
Exposure modesFull auto, programmed, shutter-priority, aperture priority, manual
Exposure metering TTL full aperture, 35 area evaluative, partial, center-weighted
Metering modes Evaluative, Partial, C/Wgt Average
Flash
Flash Auto pop-up E-TTL II (retractable)
Flash bracketing none
Shutter
Shutter Vertical travel, focal-plane shutter, all speeds electronically controlled
Shutter speed range1/8,000 to 30 s, bulb
Continuous shooting 5.0 frame/s, up to 23 frames (6 in RAW)
Viewfinder
Viewfinder Optical, pentaprism
Image processing
White balance 7 presets, Auto and custom
WB bracketing ±3 stops, blue-amber or magenta-green bias
General
LCD screen1.8 in (46 mm), 118,000 pixels
BatteryMain battery Li-Ion BP-511A rechargeable battery pack; internal memory battery CR2016 supports clock, frame counter
Optional battery packs Li-Ion BP-511A, BP-511, BP-512, BP-514AC and optional DC coupler.
Dimensions 144 x 105.5 x 71.5 mm
Weight 685 g (body only)
Made in Japan
Chronology
Predecessor Canon EOS 10D
Successor Canon EOS 30D

The Canon EOS 20D is an 8.2-megapixel semi-professional digital single-lens reflex camera, initially announced on 19 August 2004 at a recommended retail price of US$1,499. [1] It is the successor of the EOS 10D, and was succeeded by the EOS 30D in August 2006. It accepts EF and EF-S lenses and uses an APS-C sized image sensor.

Contents

Improvements

The 20D features a new sensor and a greater megapixel count (8.2 megapixels instead of 6.3) and retains the Canon 1.6x crop factor. The 20D supports USB 2.0. The 20D has a larger buffer and can shoot more frames per second. It also uses the E-TTL II flash metering system and uses the DIGIC II image processor.

The EOS 20D (with appropriate firmware updates) can also accept the Canon Wireless File Transmitter WFT-E1/E1A for fast file transfer to a remote file server, either through an ethernet cable or a Wi-Fi network.

Resolution

The Canon EOS 20D has several resolution settings:

Features

The 20D is the first Canon prosumer camera to use the EF-S lens mount; the first Canon EOS camera to use the mount was the 300D (the Digital Rebel in North America).

Creative Zone

Basic Zone

EOS 20Da

Canon released the EOS 20Da on 14 February 2005 in Japan. It is a variant of the 20D designed for astrophotography. On 1 June 2005 Canon announced that the 20Da would be made available worldwide. [2]

The main differences between the 20Da and 20D are the replacement of the "hot mirror" infra-red (IR) filter which covers the CMOS sensor on the 20D and live view mode. [3]

In conventional photography, the IR filter is used to make the spectral response of the CMOS sensor more like that of the human eye. In this way, the pictures gathered by the sensor more closely resemble the world as we see it. In astro-photography, many objects of interest emit strongly in the red H-α line, which is heavily attenuated by the IR filter on the 20D. The IR filter of the 20Da passes 2.5 times more light at around this 656 nm wavelength as the filter of the 20D, allowing more fine detail to be revealed in long exposures of emission nebulae. As a side effect, the color balance is slightly altered in normal daylight photography.

It is extremely difficult to focus an extremely dim image with a reflex viewfinder; locking the mirror up and opening the shutter (live view) was introduced in the 20Da to address this issue. When used the camera provides a live image of the center of the field of view to allow focusing on a bright star. Live view for this application requires a lens which supports fully mechanical focus in manual mode, and is not suitable for normal daytime use.

Reviews report that image noise in the 20Da is lower than in the 20D, [4] and equivalent to that of the 5D MkII. [5]

The EOS 20Da was discontinued when the 30D was introduced in 2006. [6] Canon produced no similar model for astrophotography for years, resulting in many astrophotographers making similar aftermarket modifications to later Canon models.

In April 2012, Canon announced the EOS 60Da which is the successor to the EOS 20Da. [7]

Firmware

The latest firmware available for the 20D (and believed to be the final update) is version 2.0.3, made available 23 August 2005, which improves the communication reliability with some CF cards and other minor changes.

Related Research Articles

<span class="mw-page-title-main">Nikon D70</span> Digital single-lens reflex camera

The Nikon D70 is a digital single-lens reflex camera, introduced at the 2004 PMA Annual Convention and Trade Show, as Nikon's first consumer-level digital SLR, and a competitor to the Canon EOS 300D. It was often sold in a "kit package" with the Nikon 18-70mm AF-S lens. The Nikon D70 was succeeded initially by the Nikon D70s and eventually by the Nikon D80 and Nikon D90, announced on August 9, 2006 and August 27, 2008 respectively. The Nikon D70 is the first DSLR camera built by Nikon's factory in Thailand. It debuted at a price of US$999.

<span class="mw-page-title-main">Canon EOS 10D</span> Still camera model

The Canon EOS 10D is a discontinued 6.3-megapixel semi-professional digital SLR camera, initially announced on 27 February 2003. It replaced the EOS D60, which is also a 6.3-megapixel digital SLR camera. It was succeeded by the EOS 20D in August 2004.

<span class="mw-page-title-main">Canon EOS-1D Mark II</span> Digital camera model

The EOS 1D Mark II is a professional 8.2 megapixel digital single lens reflex camera (DSLR) camera body produced by Canon. The EOS 1D Mark II was the successor of the EOS 1D and was itself replaced by the Canon EOS-1D Mark III in 2007. It was Canon's first dual-card slot EOS camera with one CF slot and one SD slot that was meant easily to use two dominant card types and have a assurance that once a small sized primary and faster CF slot is full, camera can be used to take photographs when recording was continued on secondary and slower card in critical moment. It also now had wireless capabilities. When paired with the new Canon WFT-E1, you could transfer images to a PC using an FTP server.

<span class="mw-page-title-main">Canon EOS 5D</span> Digital camera model

The Canon EOS 5D is a 12.7 megapixel digital single-lens reflex (DSLR) camera body produced by Canon. The EOS 5D was announced by Canon on 22 August 2005, and at the time was priced above the EOS 20D but below the EOS-1D Mark II and EOS-1Ds Mark II in Canon's EOS digital SLR series. The camera accepts EF lens mount lenses.

<span class="mw-page-title-main">Canon EOS 30D</span> DSLR camera

The Canon EOS 30D is an 8.2-megapixel semi-professional digital single-lens reflex camera, initially announced on February 21, 2006. It is the successor of the Canon EOS 20D, and is succeeded by the EOS 40D. It can accept EF and EF-S lenses, and like its predecessor, it uses an APS-C sized image sensor, so it does not require the larger imaging circle necessary for 35 mm film and 'full-frame' digital cameras.

<span class="mw-page-title-main">Sigma SD14</span> Camera model

The Sigma SD14 is a digital single-lens reflex camera produced by the Sigma Corporation of Japan. It is fitted with a Sigma SA mount which takes Sigma SA lenses.

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

Live preview is a feature that allows a digital camera's display screen to be used as a viewfinder. This provides a means of previewing framing and other exposure before taking the photograph. In most such cameras, the preview is generated by means of continuously and directly projecting the image formed by the lens onto the main image sensor. This in turn feeds the electronic screen with the live preview image. The electronic screen can be either a liquid crystal display (LCD) or an electronic viewfinder (EVF).

<span class="mw-page-title-main">Canon EOS 40D</span> DSLR camera

The Canon EOS 40D is a 10.1-megapixel semi-professional digital single-lens reflex camera. It was initially announced on 20 August 2007 and was released at the end of that month. It is the successor of the Canon EOS 30D, and is succeeded by the EOS 50D. It can accept EF and EF-S lenses. Like its predecessor, it uses an APS-C sized image sensor, resulting in a 1.6x field of view crop factor.

<span class="mw-page-title-main">Canon EOS-1Ds Mark III</span> DSLR camera

The EOS-1Ds Mark III is a digital SLR camera body by Canon designed for professional photographers. The Canon EOS 1Ds Mark III is successor to the EOS-1Ds Mark II and was announced in August 2007. The camera features a full-frame 21.1 megapixel CMOS sensor with 14-bit analog/digital converters for a total colour depth of 16,384 tones per subpixel. It features a three-inch (76 mm) LCD screen, capable of "Live View," and dual DIGIC III processors allowing it to shoot at up to five frames per second.

<span class="mw-page-title-main">Canon EOS 500D</span> Digital single-lens reflex camera

The Canon EOS 500D is a 15-megapixel entry-level digital single-lens reflex camera, announced by Canon on 25 March 2009. It was released in May 2009. It is known as the EOS Kiss X3 in Japan, and as the EOS Rebel T1i in North America. It continues the Rebel line of mid-range DSLR cameras, is placed by Canon as the next model up from the EOS 450D, and has been superseded by the EOS 550D (T2i).

<span class="mw-page-title-main">Canon EOS 7D</span> Digital SLR camera (2009)

The Canon EOS 7D is a high-end APS-C digital single-lens reflex camera made by Canon. It was announced on 1 September 2009 with a suggested retail price of US$1,699, and was marketed as a semi-professional DSLR camera.

<span class="mw-page-title-main">Nikon D3S</span> Digital camera model

The Nikon D3S is a 12.1-megapixel professional-grade full frame (35mm) digital single-lens reflex camera (DSLR) announced by Nikon Corporation on 14 October 2009. The D3S is the fourth camera in Nikon's line to feature a full-frame sensor, following the D3, D700 and D3X. It is also Nikon's first full-frame camera to feature HD (720p/30) video recording. While it retains the same number of pixels as its predecessor, the imaging sensor has been completely redesigned. Nikon claims improved ultra-high image sensor sensitivity with up to ISO 102400, HD movie capability for extremely low-lit situations, image sensor cleaning, optimized workflow speed, improved autofocus and metering, enhanced built-in RAW processor, quiet shutter-release mode, up to 4,200 frames per battery charge and other changes compared with the D3. It was replaced by the D4 as Nikon's high speed flagship DSLR.

<span class="mw-page-title-main">Canon EOS 60D</span> DSLR camera

The Canon EOS 60D is an 18.1 megapixels semi-pro digital single-lens reflex camera made by Canon. It was announced on August 26, 2010, with a suggested retail price of US$1099.00. As a part of the Canon EOS two-digit line, it is the successor of the EOS 50D and is the predecessor of the EOS 70D.

<span class="mw-page-title-main">Sony Alpha 550</span> Camera model

The Sony Alpha a550 (DSLR-A550) is a midrange-level digital single-lens reflex camera (DSLR) marketed by Sony and aimed at enthusiasts, it was released in August 2009. The camera features a 14.2 megapixel APS-C Type CMOS Exmor Sensor and features Sony's patented SteadyShot INSIDE stabilisation system which works with any attached lens. The Sony Alpha a550's main selling point is its dual Live View mode's, Sony's normal secondary; smaller sensor based Live View mode and another which uses the main sensor with no autofocus. The a550 also features a maximum of 7frame/s continuous shooting speed when operating in speed-priority mode and a maximum ISO of 1600 when in auto mode and 12800 ISO when in manual mode.

<span class="mw-page-title-main">Canon EOS 1100D</span> Digital single-lens reflex camera from Canon

Canon EOS 1100D is a 12.2-megapixel digital single-lens reflex camera announced by Canon on 7 February 2011. It is known as the EOS Kiss X50 in Japan and the EOS Rebel T3 in the Americas. The 1100D is Canon's most basic entry-level DSLR, and introduces movie mode to other entry level DSLRs. It replaced the 1000D and is also the only Canon EOS model currently in production that is not made in Japan but in Taiwan, aside from the EOS Rebel T4i.

<span class="mw-page-title-main">Canon EOS-1D X</span> DSLR camera

The Canon EOS-1D X is a professional digital SLR camera body by Canon Inc. It succeeded the company's previous flagship Canon EOS-1Ds Mark III and the Canon EOS-1D Mark IV. It was announced on 18 October 2011.

<span class="mw-page-title-main">Nikon D810</span> Digital single-lens reflex camera

The Nikon D810 is a 36.3-megapixel professional-grade full-frame digital single-lens reflex camera produced by Nikon. The camera was officially announced in June 2014, and became available in July 2014.

<span class="mw-page-title-main">Fujifilm FinePix HS50EXR</span> DSLR styled ultra-zoom bridge camera released in 2013

The Fujifilm FinePix HS50EXR is a DSLR styled ultra-zoom bridge camera announced by Fujifilm on January 7, 2013. It is the last model of the Fujifilm FinePix HS series. At the time of its release, it competed most closely with the Canon PowerShot SX50 HS, another ultra-zoom bridge camera with raw capability. The SX50 has 20% longer maximum effective focal length, but the HS50 has 33% more resolution on the sensor.

<span class="mw-page-title-main">Canon EOS 7D Mark II</span> Digital camera model

The Canon EOS 7D Mark II is a professional digital single-lens reflex camera made by Canon. It was announced on September 15, 2014 with a suggested retail price of US$1,799. It features a 20.2 effective megapixel APS-C CMOS sensor, Full HD video recording at 60 fps, 10.0 frames per second continuous shooting, a 100% accuracy viewfinder that offers 1× magnification. It also features a 65-point auto-focus system, a built-in Speedlite transmitter and a new 150k RGB pixels + IR metering sensor. It was preceded by the Canon EOS 7D.

<span class="mw-page-title-main">Nikon D7500</span> Digital single-lens reflex camera

The Nikon D7500 is a 20.9-megapixel digital single-lens reflex camera using an APS-C sensor. It was announced by Nikon Corporation on 12 April 2017, and started shipping on 2 June 2017. It is the successor to the Nikon D7200 as Nikon's DX format midrange DSLR.

References

  1. ↑ "Canon EOS 20D Review". dpreview.com. November 2004. Retrieved 4 March 2011.
  2. ↑ "Canon EOS 20Da for the rest of us". dpreview.com. 1 June 2005. Retrieved 19 November 2009.
  3. ↑ "Canon EOS 20Da DSLR". Bob Atkins Photography. 15 February 2005. Retrieved 19 November 2009.
  4. ↑ Lodriguss, Jerry. "Canon 20Da First Starlight". astropix.com.
  5. ↑ Dyer, Alan (September 2012). "The 60Da: Canon's Astrophoto DSLR". Sky & Telescope . 124 (3): 38–41. ISSN   0037-6604.
  6. ↑ Raymond, Emily (10 April 2006). "Canon to Discontinue EOS 20Da". DigitalCameraInfo.com. Retrieved 22 December 2015.
  7. ↑ "New Canon EOS 60Da DSLR Camera For Astronomy Enthusiasts Captures The True Colors of the Cosmos" . Retrieved 3 April 2012.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.