in this article list equivalent IXY Digital and PowerShot Digital ELPH model names. The same camera models are released in Europe, the US, and Japan under different names. The cameras themselves are identical apart from the front fascia, according to the parts lists. The Canon model number on the bottom is consistent between marketing names. All models use lithium ion batteries of Canon proprietary design, though third-party equivalents are readily available. All models introduced before 2010 use RGBG Bayer filter (except the original Digital IXUS, which uses a CYGM filter) CCD sensors made by Sony. IXUS 300 HS/PowerShot Digital ELPH SD4000 IS/IXY 30S introduced in May 2010 and all following models have back-illuminated CMOS sensor. Images are recorded as JPEGs. Raw image files are not accessible without the use of third party firmware such as CHDK. In 2010, Canon dropped the prefix "Digital" as well as suffix "IS" (Image Stabilization) from the names of the new models e.g. IXUS 105. A similar change was applied to the IXY-series names used in the Japanese market. The United States market naming was simplified in 2011: "Digital" and "IS" were removed as well as "SD" prefix. Newer US and European model carry "HS" suffix, that stands for "high sensitivity". The Digital IXUS series slots above the PowerShot A in Canon's point-and-shoot lineup, with models in the Digital IXUS range commanding a considerable price premium. However, since the late 2000s, with the falling prices of Digital IXUS models in Canadian and U.S. markets, they have become among some of the lower-priced models available as PowerShot A models are gradually withdrawn from the market and not replaced. IXUS/ELPH/IXY cameras using CF storage The PowerShot Digital ELPH using CF have Sxxx model number. IXUS 400 The Canon Digital IXUS 400 (PowerShot ELPH S400 in North America and IXY Digital 400 in Japan) featured: Maximum resolution: 2272 × 1704 (3.8 megapixels) Image ratio 4:3 Memory Format Compact Flash ISO 50–400 35 mm equivalent: 36 mm–108 mm Aperture – Battery NB-1LH, 3.7 V 840 mAh lithium-ion rechargeable The internal wiring of the CCD can become disconnected in high-temperature or high-humidity environments. Canon issued a recall in October 2006. The damaged CCD displays purple or blueish, distorted or possibly no image at all. The menu and pictures taken prior to the CCD disconnect will still display normally. The camera also incorrectly reports a problem with the memory card (Memory