IPhone Telephoto Lens

iPhone Telephoto Lens: Performance

When testing the lens the first thing that was noticeable was vignetting on some of the photos. This was more apparent when shooting at objects very far away, such as images which included the sky. Fortunately this can be cropped out in Photoshop or another image editing program. It is also worth noting that you can't use the lens with the flash as it shines right into it, so remember to turn it off.

The images produced using the lens are commendable and will be ideal for those who enjoy sharing images on social networking sites. If you like to reproduce large prints then this is where quality issues will be noticed. Detail is OK, but is better towards the centre of the images with detail becoming blurry around the edges. Combining the lens with the 5x digital zoom offered by the iPhone 4, images are clearly pixelated when viewed at full size, but again, when sized for the web are perfectly suitable.

Minimum focus distance (3m)
No lens or zoom	With lens, no digital zoom (8x)	With lens and digital zoom (40x)
Maximum focus distance (infinity)
No lens or zoom	With lens, no digital zoom (8x)	With lens and digital zoom (40x)

If you haven't got an iPhone then it is still possible to use the iPhone Telephoto Lens. Below is an example with the lens held against the 12 megapixel Nokia N8 which has a 35mm equivalent 28mm lens.

Nokia N8 without lens (35mm equiv: 28mm).		Nokia N8 with lens (35mm equiv: 224mm).

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