Planning and being prepared also requires having the right gear. You already own the smartphone – the most important and expensive component required. There are a couple of extra accessories that will expand your capability and options.Lens attachment
Struman Optics offers a full range of universal lens attachments that can fit most smartphones and tablet. Selected models also have a backing plate option to easily screw the lens into the precise location. The dedicated wide-angle lens lives on my smartphone. The best value for money travel kit also includes a wide-angle lens.See the full range here
Normally, the go-to tripod that I recommend is the Sirui 3T-35K tripod with a ball head. It can be used as a tabletop tripod and selfie stick.
However, similar to architecture photography, photos captured from a low angle will result in vertical convergence. This is improved by shooting at the middle point of the street art. Smartphone Holder
To connect your smartphone to a tripod, you need an attachment. There are so many options available. My preference is the Sunwayfoto tripod attachment. It can extend to accommodate the plus-sized devices, essentially making it future proof for your next phone.Portable Battery
If you are participating in a walking tour – you may need some extra battery juice. There are so many options available and most are very good. My preference is the Flux charger – purely because it has cables built into it. One less thing to leave behind!External Light
A portable hardware light cast along the wall can produce some lovely textures. You can also isolate the artwork within the illuminated area of the wall.
If you want a smaller, more convenient option – you cannot go past the Lume Cube. These small bright LED lights are durable, dimmable, waterproof and can be controlled manually or via Bluetooth.