Not to be missed with the spotlight on Canon’s EOS R mirrorless system are two new versions of its super-tele primes for DSLRs, the EF 400mm f/2.8L IS III USM and EF 600mm f/4L IS III USM.
![](https://oelmag.com/wp-content/uploads/2018/09/canons-lighter-closer-focusing-super-tele-primes.jpg)
The most noteworthy improvement to these two lenses are significant weight reductions compared to their predecessors—no small benefit when talking about primes of this size and weight. The EF 400mm f/2.8L IS III USM weighs in at 6.26 pounds, making it 2.2 pounds lighter than the previous generation. The EF 600mm f/4L IS III USM is 1.9 pounds lighter than its predecessor, at 6.73 pounds.
![](https://oelmag.com/wp-content/uploads/2018/09/canons-lighter-closer-focusing-super-tele-primes-1.jpg)
The minimum focusing distance has also been improved in both lenses, from 8.8 feet to 8.2 feet for the EF 400mm f/2.8L IS III USM, and 14.8 feet to 13.8 feet for the EF 600mm f/4L IS III USM. Both lenses also incorporate improved image stabilization, providing up to 5 stops of correction.
The lenses will be available starting in December. List prices: $11,999 (EF 400mm f/2.8L IS III USM); $12,999 (EF 600mm f/4L IS III USM).
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