+ Backlight protection. Some may think it's not such a big deal, but I myself think it is, especially considering what some backlight protection can cost. This lens comes with a backlight cover in the box! The backlight cover when not in use can also be screwed to the rear and used to protect so that your fingers do not touch the focus ring when driving on auto focus, Thumbs up! + Focal length. Obviously, it is hugely versatile with its 18-400 mm (28.8 mm - 640 (!) Mm on my aps-c Canon). This means you do not miss anything. Never had a lens where I can get as many objects in the picture on one day as with this one. + The close-up of 45 cm invites you to fine close-ups, especially at 400 mm so the background becomes very fine and out of focus. + Weatherproof. That Tamron even tossed a weather seal in this price range on such an objective beats many competitors by the fingers. + Focus engine, gives fast focus on all focal lengths and also quieter than all my other lenses. + Image stabilization. Can summarize it to be good, you can shoot pictures at the highest focal length and get good results. However, it seems that it chops a little, but it happens very rarely. Having read about this and with the help of an accessory from Tamron, this can be easily adjusted as well as update firmware. However, this is not something that I really bother with, so it doesn't. + Price. Quite self-explanatory considering everything I mentioned. One of the most affordable lenses for Canon aps-c. - Focus ring. Why Tamron chose to let the focus ring move and was not free during autofocus can possibly be linked to a cost issue. But it also means that you should be careful and not be there with your fingers when the aufocus is running as it could possibly damage the engine. Had also wished that the focus ring could be turned on more in manual mode, it will be quite fine at some focal lengths. - The aperture. At 400 mm, the aperture is 6.3. If you drive on it, tripod in low light may be required to get really sharp images. However, the image stabilization is good, as mentioned above, and it is actually possible to shoot sharp images in less good light with longer shutter. If I have a planned portrait photography, for example, I would rather take my prime lens at 1.8. Takes it even in indoor photography as Tamron's lenses do not deliver particularly good indoors in bad light, but not what a megazoom is usually used for either and in good light you get nice portrait photos. + - The weight. This is a bit of a plus and minus rating. In relation to how versatile focal length you get, it does not weigh very much, but it is not in any lightweight class either. There are lenses that weigh less with similar focal lengths. 16 lenses in 11 groups weigh a little. Summary: Affordable! A good lens that will keep going as soon as I have no exact goal of what to shoot during the day or do nature photography. Versatility is its strength, you miss no object. Obviously a lens that will be used extensively and found its permanent place in the camera bag! Review will be updated the more I tested it. I have participated in a test panel of the lens.

Just bought this 18-400mm lens from Expert Infotech. Got to say it has surpassed my expectations. I thought it may be unsharp, but it is performing better than my Canon 18-55mm kit lens, my (supposed to be good) Canon 15-85mm which has always seemed 'soft' and my nice little Tamron 18-200mm non-IS lens. It seems sharp and well focused at all ranges, and even wide open (though I've tended to stay at around F8 out of habit. Its brought back my joy of photography. Only slight niggle is it is a little 'stiff' to adjust zoom, but I can forgive that for something so flexible. Great stuff!

I have participated in a test panel for this lens and am very pleased. Perfect for traveling when you need to bring an objective. ok focus a little slow on sport but otherwise it will work for the most part. Good allround lens

I have participated in a test panel for this lens. Have been using it for two weeks now, and is very pleased. The lens feels robust. It weighs a lot, but with my Canon 80D it feels stable in my hands. Its wide range makes the lens a perfect all-round lens-great for macro, portrait and nature photography. I am pleasantly surprised at the sharpness of the images, even with handheld zoom. It takes some time to focus, not the most ideal lens for sports photography. Should you go out and just want to bring an objective, I would definitely recommend Tamron 18-400.

I am surprised at how well the lens delivers throughout the zoom range. Special sharpness of 400mm. Have used it for handheld macro and I am very pleased. A super all-purpose lens that I would not hesitate to take with me on a trip. I have participated in a test panel.

I have participated in a test panel to test Tamron's new lens. Overall, I am pleased with the lens. It gives a solid feeling when you hold it. The rubber surface of both the zoom and sharpener ring provides a good grip even when you are wet around your hands. Overall, it delivers crisp sharp images and the autofocus works better than other lenses I've used from Tamron. I was pleasantly surprised by the image stabilizer. It's no problem turning up to 400 mm and taking pictures without being apparently shaky, even in twilight. However, a fairly noticeable wine tasting was noticed when I was shooting completely open aperture, but it disappears completely in t.e.x. Lightroom, but not all those who use editors to remove it with one-click. Now there is no macro lens, but with a close-up of 45 cm, you will get close to your item if you wish to do that. In conclusion, I am very pleased with that. Like all zoom lenses, it is always a matter of compromise and there is room for improvement. But in the light of what the competitors offer in this price range, this is very affordable. When I'm giving up and just thinking about taking an objective, this will hang on my body.

All-Round Lens - The lens itself feels stable and robust. This is an objective I've used in all weather and has been successful, with which I can certainly recommend to anyone looking for a lens for zoom, portrait, scenery, birds and sporting items. Also, the images get sharp and clear even with a lot of ISO and low closing time thanks to a good stabilizer. The lens works excellent for macro. Some examples: https://www.instagram.com/wideshutter/ - https://www.facebook.com/Wideshutter/ - https://wideshutter.com/ - I have participated in a test panel.

I've been test pilot and tested this lens for a few weeks and can only say I'm impressed! I have long lacked an objective that is as multifunctional as this. I have previously had a 70-300 telecom zoom but then I did not get enough of the environment but had to change the lens at least. I photographed a wedding at Midsummer and was worried about catching all the moments that last for only a few seconds and then can not be arranged again. I'm so glad I brought him this lens before the wedding, it really helped so much! I managed in all situations and did not remove the lens since I put it on the camera. From an "amateurish" perspective, the pictures keep fine quality and give a nice light. But like any other telezoom / multipurpose, it will be a balance between quality and ease of use. I think it's more worth catching every moment than getting them 100 percent perfect. I also feel that the stabilizer is good. When you open the package and pick up the lens, you know that it is a slightly more expensive lens. The material is completely magic and has a matte silky surface that, for me, symbolizes Quality. In summary: A versatile lens that is worth its price as it eliminates the need for several others. I am very pleased!

I've been in a test panel. The lens is a compromise, as it covers a wide range to a low weight and little space. But like all the comprints, it does not matter. Overall, the lens gives good pictures. However, I have experienced some weak colors, which have been made possible afterwards on the computer. I have also had some blurred images, especially in shorter focal lengths. The major advantage of this lens is its versatility, and low weight in travel packing as compared to dragging 2-3 separate lenses to cover the same range. The lens will be given when I do tours with unscheduled photography, but I have better lens for planned subjects.

I have participated in a test panel for Tamron 18-400 megazoom. Have tested it on people in motion in races and nature photos with all possible focal lengths, can highly recommend the lens. The photos I've taken are here so far! 1. http://www.sportsmanden.no/archives/45645 2. https://www.kondis.no/annie-og-weldu-til-topps-i-krokskogen-halvmaraton.6132173-127676.html 3. https://www.instagram.com/krokskogen_halvmaraton/ 4.https: //www.instagram.com/hansedgard/