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Evaluative-Through The Lens (E-TTL) is a Canon EOS flash exposure system that uses a brief pre-flash before the main flash in order to obtain a more correct exposure. Unlike TTL and A-TTL metering, which use a dedicated flash metering sensor mounted in the base of the mirror box, E-TTL uses the same evaluative metering sensor used for ambient ...
This is being done in a significantly different way than non-flash 'through the lens' metering. The actual metering itself happens in two different ways, depending on the medium. Digital TTL works differently than analog TTL. The analog version of TTL works as follows: when the incoming light hits the film, a part of it is reflected towards a ...
For example, if the guide number is 100, and the shutter traverse time is 5 ms (a shutter speed of 1/200s), and the shutter speed is set to 1 ⁄ 2000 s (0.5 ms), the guide number reduces by a factor of √ 0.5 / 5, or about 3.16, so the resultant guide number at this speed would be about 32.
Pages in category "Canon EOS DSLR cameras" The following 62 pages are in this category, out of 62 total. This list may not reflect recent changes. 0–9. Canon EOS-1D;
Canon EOS 1000D is a 10.1-megapixel digital single-lens reflex camera announced by Canon on 10 June 2008 and started shipping in mid August 2008. It is known as the EOS Kiss F in Japan and the EOS Rebel XS in the United States and Canada. The 1000D is an entry-level DSLR that has been described as being a step below the 450D. [1]
The Canon EOS 300 (EOS Kiss III in Japan, EOS Rebel 2000 in North America) [2] is a consumer-level 35mm single-lens reflex camera, produced by Canon of Japan from April 1999 until September 2002 as part of their EOS system. [1] Designed under the supervision of Yasuhiro Morishita, the camera was intended as a replacement for the Canon EOS 500N. [3]
The Canon XL-2, released in 2004, is Canon's prosumer 3CCD standard-definition camcorder. The XL-2 is the big brother to the GL family and the successor of the similar looking Canon XL-1s. It is succeeded by the Canon XL-H1 with a similar 20x lens and similar design, but in black.
The Canon EOS 550D is an 18.0-megapixel digital single-lens reflex camera, announced by Canon on 8 February 2010. [1] It was available since 24 February 2010, [2] and to US dealers from early March. [3] It is known as the EOS Kiss X4 in Japan, and as the EOS Rebel T2i in the Americas. [4]