When you check out on your smartphone, B&H Photo-Video offers the Canon EF 100mm f/2.8L IS USM Macro Camera Lens, model no. 3554B002, for $704.05 via the directions below. With free shipping, that's $45 under our mention from four days ago and the best price we've seen for this lens. (It's a current low by $195.) This 22-oz. "L" lens is for use with Canon EF-mount SLR cameras. Rebate ends January 4. To get this deal:

1. View the Canon EF 100mm f/2.8L IS USM Lens on B&H Photo-Video's mobile site for $1,049
2. in-cart, it falls to $899
3. checkout on your smartphone via Google Wallet to drop to $854.05
4. redeem this $150 mail-in rebate for a final price of $704.05