A good (if heavy and expensive) lens: the Canon EF 300 f/2.8L II USM

Wednesday, December 21, 2011

Lens Review

Telephoto lenses such as the Canon EF 300mm f/2.8L IS II USM are used for professional sports or wildlife photography. How does it stack up against an earlier Canon model? Let’s take a look.

Mounted on a Canon EOS 1Ds Mark III

Announced in July 2010, the DxOMark test results for this Canon super-telephoto lens shows that it has excellent resolution, with really very good homogeneity throughout the field. Distortion is simply nonexistent, there’s only a negligeable amount of chromatic aberration, and it has good stability. What vignetting there is not especially annoying, even though it’s a bit higher at f/2.8. It comes with a tripod mount.

This all said, the f/2.8 is an expensive lens... and very heavy and cumbersome one to boot. Further, its transmission quality is disappointing for this type of lens (especially at the price).

Canon EF 300mm f/2.8L IS II USM vs Canon EF 300mm f/4L IS USM (both mounted on a Canon EOS 1Ds Mark III)

When compared to an older Canon 300mm super-telephoto (the f/4L), the Canon 300mm f/2.8 comes out ahead. As noted above, the f/2.8’s resolution is homogenous across the field - rather more than for the f/4L, even though the f/4L has a slightly higher score for resolution. Apart from that, the f/2.8 beats the f/4L in most categories (distortion, chromatic aberration, and transmission).

The f/2.8’s main weaknesses remain its price and its weight - many times more expensive than the f/4L, and about twice as heavy.

As for the Canon EF 300mm f/4L IS USM, per above, it has even better resolution than the f/2.8, and somewhat less noticeable vignetting. Moreover, it is lighter and less expensive. But it has poorer transmission and its resolution is less homogenous across the field. Overall, it simply is not as good a lens as the f/2.8.

Conclusion

All in all, if price and weight make no difference, then f/2.8 is clearly superior to the f/4. But is it worth paying up to five times more than the f/4L? We will leave that question for our discerning readers to answer for themselves.

Comments

Added by garyknrd | October 18, 2012

300mm f2.8 L IS USM ll

I have to agree with you. I hate too but I owned the older IS version of this lens and tested it against it. Colors are beautiful, pictures are great but it lacks the resolving power of some of my other lenses? Maybe I am wrong and it is the best. Maybe I got a bad copy. But at the end of the day it is what it is.

Added by ag08025 | October 11, 2012

300mm f/2.8 L IS USM II vs 300mm f/4 L IS USM

You gave a higher score to f/4.
I had both lenses and your judgment is not aligned to the result that I got.
The f/2.8 is considerably higher.