Option 2: Sigma 150-600mm F5-6.3 DG OS HSM ( S ) Lens
Match Score
94%Pros
- Excellent sharpness
- Very good build quality
- Recently updated
- Very versatile focal length
Cons
- Heavy
- Expensive
- Unwieldy without a tripod
Top Result: Canon EF 100-400mm f/4.5-5.6L IS II USM Lens
Match Score
99%Pros
- Excellent sharpness
- Excellent build quality
- Recently updated
Cons
- Expensive
- Heavy
- Tripod collar could be stronger
Note From Jim
Until early 2015, it was really tough to recommend a decently priced wildlife lens. Now, you have options galore. The Canon is the top of the pack for build quality, but the Sigma has a more versatile focal length. The Tamron 150-600 should not be ignored as it is MUCH cheaper and 95% as good optically. I say save your money and spend $1,000 on a wildlife trip to Yellowstone.
Option 3: Tamron 150-600mm F/5-6.3 Di VC USD Lens
Match Score
91%Pros
- Lightweight
- Inexpensive
- Surprisingly good sharpness
- Consistent output
Cons
- Build quality is a little cheap
- Slightly sluggish autofocus
- Bulky
- A TINY bit less sharp as the Sigma
Option 4: Sigma 150-600mm f/5.0-6.3 Lens (Non-sport version)
Match Score
84%Pros
- Better build quality than the Tamron
- Consistent output
- Fast autofocus
Cons
- Heavier than the Tamron
- Bulky
- Needs to be shot on a tripod