Also, check out the lower-end Rokinon 35mm f/2.8 AF FE lens for $264.50 (reg. $349) here at B&H Photo.
Canon has a special on several of its DSLRs bundled with its PIXMA PRO-100 photo printer and a $350 mail-in rebate. Check them out below (rebate expires 5/31/18).
Sony has a new promo running for its E-mount cameras and lenses with up to $900 in savings available. The Sony A7S II is $200 off at $2198, while the Sony A7R II is $400 off at $1998. Additionally, the Sony A9 has a $300 instant rebate and is $4198. Check them out here at B&H Photo.
All of the current deals on Sony cameras, kits, lenses and accessories can be found here at B&H Photo.
B&H has the Vello FreeWave Aviator Wireless E-TTL II Flash Transceiver/Receiver Kit for $109.95 (reg. $289.95). This system has 4 channels and offers 3 different groups for Canon E-TTL II Speedlites. It operates at 2.4Ghz and has a range of 300′. Check it out here at B&H Photo.