Your guide to Canon camera and lens reviews
Canon EF 400mm f/5.6 USM L - Full Format Review / Test
Admittedly most users will probably vote for the EF 100-400mm f/4.5-5.6 USM L IS due to its extra zooming flexibility. However, the prime lens has some advantages. It is capable of achieving an evenly high resolution across the image frame combined with very low lateral CAs. Vignetting is not an issue even on a full format body.
Canon EF 300mm f/4 USM L IS - Full Format Review / Test
The IS implementation on the EF 300mm f/4 USM L IS can give you an extra potential of 2 f-stops - possibly a little more due to the weight of the lens. This is less than in modern Canon IS lenses but it's very useful nonetheless. The build quality of the lens is great but that's also something that we simply expect from a lens in this price class and especially from a Canon L-class lens.
Canon EF 100-400mm f/4.5-5.6 USM L IS - Full Format Review
The Canon EF 100-400mm f/4.5-5.6 USM L IS is almost a boring lens but in a positive sense. It shows no extreme weaknesses nor strengths. You will find sharper lenses - primes that is - but it is very sharp for a zoom lens, especially considering its 400mm, and that's throughout the range at all relevant aperture settings.
Canon TS-E 24mm f/3.5 L II - Review / Lens Test
We raved already about the qualities of the extraordinary Canon TS-E 17mm f/4 L and the Canon TS-E 24mm f/3.5 L II is basically on the same high level. When using the lens based on conventional settings it behaves pretty much like an excellent, albeit a little slow, 24mm prime lens. The center performance is outstanding here followed by very good borders/corners and that's straight from f/3.5 till f/11.
Tamron 17-50mm f/2.8 VC
If you're considering this mostly plastic lens, go for it. It works reasonably well — with one big catch: This Tamron's VR/IS/VC system works only if you have the time to wait a moment before you snap each and every photo. There is a huge flaw if you make a photo before waiting a second for it to settle down. If you snap a photo without waiting for the VC/VR/IS system to settle, it will blur your image worse than if you had no VC, VR or IS!
Canon EF 200mm f/2.8 L USM II - Full Format Review
The EF 200mm f/2.8 L USM II is capable of delivering a near-flawless performance in most aspects. It provides a very high resolution combined with an excellent contrast straight from f/2.8. The lateral CAs are very low which contributes to the high sharpness perception. The global peak quality is reached around f/5.6.
Tamron AF 70-200mm f/2.8 SP Di - Full Format Review
The Tamron AF 70-200mm f/2.8 SP LD Di [IF] macro showed a very good performance during our APS-C format tests and it is only slightly worse in the full format scope. The center performance is very good at f/2.8 and excellent at medium aperture settings. The border/corner quality remains very high at 70mm and it's still decent beyond.
Canon EF-S 18-135mm f/3.5-5.6 IS (Tested)
The Canon EF-S 18-135mm ƒ/3.5-5.6 is available as a kit lens option for several Canon camera bodies, and it makes an excellent all-purpose lens. For the money, it provides very good performance: it doesn't need to be stopped down excessively to provide sharp results, and results for distortion, light falloff and chromatic aberration aren't beyond the pale of what you'd expect in this category of lens.
Tokina 11-16mm f/2.8 AT-X Pro DX Lens Review
The Tokina 11-16mm f/2.8 AT-X Pro DX Lens is a lens of bests and worsts, but its price tag falls in the middle of those of this group - and noticeably lower than the most expensive lens (the Canon). For the money, the Tokina 11-16mm f/2.8 AT-X Pro DX Lens is a very strong performer optically - a very good deal.
Sigma 100-300mm f/4 EX DG HSM APO (Tested)
The 100-300mm ƒ/4 is an interesting lens, about as large as a 70-200mm ƒ/2.8, but offering slightly more reach. Unfortunately, the performance of this sample is on par, and sometimes bested by, the consumer telezooms of its competitors.