More Canon Lens Price Drops

B&H has lowered more Canon lens prices. Following are the now-more-affordable lenses along with the price drop amounts:
 
Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens - $40.00
Canon EF-S 17-55mm f/2.8 IS USM Lens - $19.00
Canon EF 14mm f/2.8 L II USM Lens - $118.00
Canon TS-E 24mm f/3.5 L II Tilt-Shift Lens - $110.00
Canon EF-S 60mm f/2.8 Macro USM Lens - $23.00
Canon EF 85mm f/1.2 L II USM Lens - $110.00
Canon EF 100mm f/2.0 USM Lens - $25.00
Canon EF 100mm f/2.8 USM Macro Lens - $30.00
Canon EF 100mm f/2.8 L IS USM Macro Lens - $53.00
Canon EF 135mm f/2.0 L USM Lens - $55.00
Canon EF 180mm f/3.5 L USM Macro Lens - $79.00
 
Sorry - I don't have any information regarding the duration of the recent price drops.