nothing special, a cheap Panasonic Lumix x12 optical zoom (using the zoom a lot). Then lots of patience and discovery. Finally, enhancing and correcting colours with Photoshop (no, they are not 'shopped', just contrast, colour and light correction). THANK YOU/GRACIAS. Your Iphone should be fine except for the lack of zoom, probably better off shooting at your best quality and then cropping accordingly later at home.