A:AnswerYes it will. The Canon EOS 90D has an APSC crop sensor and an EF-S mount which will fit this lens and make it perform to an apparent focal length of 145mm.
A:AnswerThe Rebel T7 has an EFS mount. The Tamron lens is EF mount compatible and will fit on an EFS mount such as the Rebel T7. There will however be a cop factor of 1.6 which give the lens an apparent focal length of 144mm
