Adorama offers the Canon EF 40mm f/2.8 STM Pancake Camera Lens, model no. 6310B002, for $199. In-cart, it drops to $179. Coupon code "S2221112" further cuts it to $142. With free shipping, that's $2 under our February mention and the lowest total price we've seen for this lens new. (It's also a current price low by $37.) This 0.3-lb. lens is for use with most Canon SLR cameras.