Reply To: AF hunting with Sigma 150-600mm f/5-6.3 DG HSM contemporary lens beyond 300mm

[Sudhir Shivaram]

Dear Mohan Khullar,

Can you please explain what exactly is the AF issue you are facing? Also need answers to below:
– What is the AF point you are using on Canon 90D.
– Can you please share images where you are facing issues.
– Are you using One Shot mode or AI Servo?

AF hunting happens due to multiple reasons including:
– low lighting
– Distractions in the scene
– Subject not properly visible to lens
– If you are using any kind of filters to the lens

And to be honest, the Sigma 150-600mm is not a fast lens to get you good AF.

Rgds,
Sudhir

• This reply was modified 3 months ago by  Sudhir Shivaram.