We all know the how good the iPhone cameras are, but Olloclip thinks it can make them even better. It has just launched the 4-in-1 lens for the iPhone 6 and iPhone 6 Plus (£69.99).

The new lens set, a follow on from the previous iPhone 5 and iPhone 5S model, promises the same lenses as the original, but works with a better clip for the two different sized phone models - including the front-facing camera. The 4-in-1 lens sets compromises of four lenses: a fisheye, wide-angle, 10x and 15x macro lenses.

There are new colours too: a silver lens with black clip, a gold lens with white clip, a bright red lens with black clip, a space grey lens with black clip, and a silver lens with white clip. You should easily find a lens option to match the colour of your phone.

The lens design has changed to fit the new Apple phones and to clip into a pendant carry case that's ideal for hanging around your neck or slipping into your pocket when out and about.

On the downside it means it is considerably larger and longer than the previous model that saw the lens back-to-back, but it does mean you can now use the lenses for the front-facing camera as well.

Regardless of the size, the pendant is easy to use and a nice addition, we just can't see ourselves wearing it.

When it comes to slipping the lens onto the phone it's all very easy. The protruding lens on the back of the iPhone helps line things up, while the iPhone 6 Plus needs an extra slip of plastic (included) to pad it out for the larger design.

In the case of the iPhone 6, fitting the lens to fit both the rear camera and the front facing camera is automatic without having to move the lens at all. With the iPhone 6 Plus you have to slide it along slightly due to the larger form factor. It's no biggie, but you could see a bigger company offering two models rather than asking users to compromise - even if it is ever so slightly.

The results are very good. That's the bottom line, with Olloclip investing in good optics that add to the iPhone's photography skills rather than muddling them.

The fisheye lens does what is says on the tin, while the wide-angle is wide enough to make a difference. In our test shots it meant that we got the whole of the Ascot racecourse grandstand in a single shot rather than just some of it.

As for the macro lens. It really comes down to how close you like to get. Both lenses are a tad overkill, unless you want to get really close to your subjects, although we've found they make for an excellent microscope for showing stuff to the kids up close.

Take a look at our extensive gallery of test shots to see what you think of the results.