Sigma Z 135mm f/2.8 Pantel

Better than the Canon 135 L f2 but at a price It's a heavy lens compared to the Canon version. The autofocus is faster than the Canon 135 L f2 and the images are sharper. Image quality and color are quite good on Canon version. It's expensive compared to its Canon counterpart but not a terrible value overall. I use it on a Canon R5 and R6 with excellent results. Overall it is better than the Canon 135 L f2 but heavier and more expensive. It's hard to say whether it is so much better to justify the price differential. The Canon 135 is one of the better regarded L lenses in the Canon lines. For sports the Sigma Art version will likely produce better results with its advantage in sharpness and autofocus speed.

AMAZING LEN This lens is absolutely stunning with the images that it produces. The separation and depth of field is amazing. The len built like a tank and has a nice focus ring. I'm definitely pleased with this purchase.

Best lense in my collection This lense is just unbelievable More then I could ever ask for in a lense I wish I knew about this lense a long time ago. Great product it is worth every penny