High quality images require high quality cameras, lenses, lighting and skill in using them.
I use professional Canon cameras and L series lenses for high definition images.
Canon 5DRS (50 megapixel), Canon 5D MkIII & MkII, architectural tilt & shift 17mm lens, 24mm - 105mm L, 50mm f1.4, 70mm - 200mm L, 100mm f2.8 macro.
Lighting in the studio and on location comes from Bowens strobes, with various modifiers and reflectors.
Images are shot in RAW format and processed in Adobe Lightroom and Adobe Photoshop.
Proofs are made available via a secure link on my website. Delivery of high resolution and web scaled images is usually by wetransfer.com, though any other preferred method can be used, such as Dropbox.