The application is very simple: Before Use each lens must be inserted into a plastic clip, which is then clipped on the phone and align so that the lens of the camera phone is fully visible in the objective. This works with the iPhone 6 wonderful. However, in one of the clips sitting of soft rubber (to protect the phone from scratches) not right, so on the phone a little adhesive residue caused when slipping the clip and not as stuck as the other. (The adhesive residue can have but to rub again with no problem).
The fish-eye and ultra-wide angle is great for city or landscape shots, because you get with this much more in his image than without the lens.
Even better than the Fish-Eye I like personally but the macro lens, which is suitable for all close-ups, for example. B. flowers suitable etc.. Here can be achieved even at a distance of 3-4cm sharp images, which are not possible without a lens.
A positive addition of the lens set is also the small cloth bag, with which one can insert the lenses easily into your pocket without damaging them for me.
Conclusion: Of course, the recordings of phone lenses VicTsing can not be compared with those of professional SLR cameras. But who is without image, only with smartphone on the go, in the set of VicTsing for the price of just 15 Euro can definitely go wrong.
(If you have read my review like / helped, I would be very happy if you rate them with helpful ". If not, you be happy to send me your objective criticism, so I can revise the review accordingly. Thank you)