Abe’s of Maine takes $50 off a selection of Sigma digital SLR camera lenses of $400 or more via coupon code “ABES50″. Plus, take another $15 off orders of $400 or more via coupon code “LOYALTY15″. With free shipping, that’s among the best dollar-off discounts we’ve seen for these lenses, yielding a number of significant price lows. Notables, with prices after both the $50 and $15 coupons and free shipping: