Dpreview.com are reporting today the iPhone 5 does indeed have a different image sensor to the iPhone 4S. ”Close examination shows the iPhone 5 is using a 4.1 mm lens to give a 33 mm equivalent field of view, rather than the 4S’s 4.3 mm lens, which gave a 35 mm equivalent view’. They have determined this information by looking at the EXIF data of two images, one of their own taken with the iPhone 4S and the other from Apple taken with the iPhone 5. In tests the iPhone 4S selected ISO 64 whilst the iPhone 5 dropped down to ISO 50, inferring ‘the newer model has a lower minimum sensitivity’.
Effectively what this means is that the new sensor in the iPhone 5 is just a tiny fraction larger.
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Promotion of mobile artists and the art form as a primary medium in today’s art world, has become her life’s focus. She has presented lectures bolstering mobile artists and their art from as far away as the Museum of Art in Seoul, South Korea to closer to her home in the UK at Focus on Imaging. Her experience as a jurist for mobile art competitions includes: Portugal, Canada, US, S Korea, UK and Italy. And her travels pioneering the breadth of mobile art includes key events in: Frankfurt, Naples, Amalfi Coast, Paris, Brazil, London.
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Her journey towards becoming The App Whisperer, includes (but is not limited to) working for a paparazzi photo agency for several years and as a deputy editor for a photo print magazine. Her own freelance photographic journalistic work is also widely acclaimed. She has been published extensively both within the UK and the US in national and international titles. These include The Times, The Sunday Times, The Guardian, Popular Photography & Imaging, dpreview, NikonPro, Which? and more recently with the BBC as a Contributor, Columnist at Vogue Italia and Contributing Editor at LensCulture. Her professional photography has also been widely exhibited throughout Europe, including Italy, Portugal and the UK.
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It’s not really possible to deduce anything much about the sensor from the EXIF data. The lens may be different (although even that’s not certain); its focal length is certainly being reported as 4.13mm instead of 4.28mm.
However, iPhone 4S’s 4.28mm lens has a full-frame equivalent of 32.5mm (not the 35mm that Apple writes to the EXIF data) and a 4.13mm lens is equivalent to 31.4mm (not 33mm) so it just goes to show that you can’t trust EXIF data! Maybe the lens is different; maybe it’s just being reported more (or less!) accurately…
Also, the ISO limits are really defined at the level of the OS, so an ISO 50 setting really tells us little if anything about the sensor behind it all.
If the lens is slightly wider (as iPhone 4’s lens is wider than iPhone 4S’s), that still doesn’t say anything about the sensor size being different.
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Mike Hardaker (Jag.gr)
It’s not really possible to deduce anything much about the sensor from the EXIF data. The lens may be different (although even that’s not certain); its focal length is certainly being reported as 4.13mm instead of 4.28mm.
However, iPhone 4S’s 4.28mm lens has a full-frame equivalent of 32.5mm (not the 35mm that Apple writes to the EXIF data) and a 4.13mm lens is equivalent to 31.4mm (not 33mm) so it just goes to show that you can’t trust EXIF data! Maybe the lens is different; maybe it’s just being reported more (or less!) accurately…
Also, the ISO limits are really defined at the level of the OS, so an ISO 50 setting really tells us little if anything about the sensor behind it all.
If the lens is slightly wider (as iPhone 4’s lens is wider than iPhone 4S’s), that still doesn’t say anything about the sensor size being different.
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