“I have a Canon 80D and like birds in flight...is this lens good for this and have a fast focus capability? I like the range - 18 - 400 but how much is cropped on photo's?”
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You might want a faster lens, but I did fine with this one.
Sorry, there was a problem. Please try again later.This lens is good for birds in flight, but not great. As the lens is made for APS-C cameras there really isn't any cropping.
Sorry, there was a problem. Please try again later.I just returned from a cruise where I used the Tamron 18-400mm exclusively. Because of weight, I got a Canon M5 and this lens for vacations so I wouldn’t have to drag my heavy 5D MkIII, and heavy glass around. I did take my 24-70mm/f2.8 and 70-200mm/f2.8 lenses as a backup in case I wasn’t happy with the Tamron. It never left my camera the entire trip. I don’t shoot birds, especially in flight, but tried to shoot some seagulls that were buzzing the ship on the final full day. Had moderate success, but a lot of the issues were my fault since I don’t shoot birds in flight. Was able to get a few decent ones by accident. Overall, I was very pleased with the lens and will probably not take backup lenses the next time. As far as cropping is concerned, I don’t know how much is actually ‘lost’. There is a multiplication/magnification factor of 1.6 on Canon APS-C sensor cameras, which I think the 80D is. In essence, the lower mm will be 28.8mm and the longer mm is 640mm. I try to think of it as more reach than something lost. When shooting at 18mm, you capture a lot. If you can find one to rent for a day, try that to see if you like it. That’s the only way you will really know...put it on your camera and put it through it’s paces. I feel that this lens is better than the 16-300mm, which I also own.
Sorry, there was a problem. Please try again later.The crop factor is the same as any non-full frame lens I guess. The focus will depend on your camera. I had to get the Canon mount with an adapter to hook to my Sony a6000. My auto focus is non-existent due to the adapter. I hooked my 18-400 lens directly to a friend's 60D Canon and it worked EXTREMELY fast and clear... I also shoot a lot of action shots of birds etc. Very good lens for that even with my manual focusing.
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