Which is better for astrophotography? Sony, Canon or Nikon? / Panasonic takes on Canon with the full-frame, 45-megapixel S1R II mirrorless camera / Canon has developed a 410-megapixel full-frame sensor / Canon set a new record with its 410-megapixel 35mm camera sensor / Canon eyes business from chip companies setting up India operations / The 18 best Cyber Monday deals on camera gear from Nikon, DJI, Canon and others / The 19 best Black Friday deals on camera gear from Nikon, DJI, Canon and others / Sony's newest mirrorless camera squares off against top rival Canon / The best Prime Day camera deals on Sony, Canon, DJI and more / Canon's new mirrorless camera takes aim at 'biggest rival' Sony