Busby Loc: St. Petersburg, Fl

I am interested in purchasing this lens. Does anyone use it?
I am wanting to replace an 18-270.
Is it available in full frame?
Busby

legion3 Loc: Deer Park Long Island

this lens 18-400 is only for a crop body they make a 28-300 for full frame bodies

casyjones3 Loc: Bronx NY

They also make a 100-400 in Both Sigma and Tamron in Full Frame.

imn2vb

I use it as my "walkaround" camera. I want to be able to go from "birthday party to soccer field" and not have to change lenses. I was using a Canon 18-200 (great lens!) but I liked the extra reach with the 18-400. Perhaps a little fuzzy out at the extreme end, but it gets the job done.

VietVet Loc: Brooklyn, NY

I’ve got the 38-300 for my full frame Canon 6D, I also use it on my 7Dii. It’s a great lens but gets a little soft at 300mm. I just stop short of 300 and it works out ok. Of course the more light the better.

jaycoffman Loc: San Diego

I have been using the Tamron 16-300 lens for several years now as my walk-around lens and have been generally happy with it. (I am committed to using one major lens that is light enough to carry all day and to not having to change lenses in the field. If you can handle either of those tasks you may want to consider other options.) Looking toward another African safari trip later this year I've also been exploring the Tamron 18-400 to upgrade my 16-300 as I think that the additional reach will be beneficial to me in Africa. Yesterday I rented the Tamron 18-400 lens for my Nikon d7100 and took it to the San Diego Wild Animal Park which is a great place to take pictures of animals close and at a distance. I shot a little over 300 pictures trying to use the full range of settings and light situations.

I am not completely sold on the 18-400 but do like it enough that I will probably purchase it later today. It did quite well in the 18mm to 150mm range but not quite as good as the 16-300. I found it very good in the middle range 150mm to 300mm with very sharp pictures. Finally, I really liked it when I went over 300mm all the way to 400mm where it was very sharp and noticeably better than the 16-300 lens at its limits. Also, while not quite as clear on macro like shots as the 16-300 the 18-400 at 400mm did a very good job of flowers, insects and other macro like opportunities.

As a qualification, I found the autofocus a bit awkward as my hand kept getting in the way of the spinning cylinder--something I do not experience with my 16-300 but that I suspect will not be an issue once I train myself how to hold this lens. I also thought the manual turning of the telephoto cylinder was a bit stiff compared to the 16-300. Finally, my biggest concern was the fact the lens was slow to focus and set when I had to change subjects, lighting and distances rapidly--like shooting a bird in a tree at distance and then seeing a baby gorilla about 20 feet away suddenly leap up on a tree--I actually missed a couple of those changing condition shots that I believe I would have gotten with the 16-300.

So, this is only one person's real world experience with the lens and I'm not an expert--I'm just learning as well as I can. Overall I believe it will add to my ability to shoot animals in Africa and elsewhere without having to break the bank or carry weight I'm unwilling to carry so I will probably buy it. I will keep my 16-300 and get rid of my Nikon 18-200 which is pretty obsolete if I have these two Tamron lenses. Hope this helps you in your research and consideration.

AK Grandpa Loc: Anchorage, AK

I have a Tamron 18-270 and love it . . . When I got my D500, I also went with the 18-400 and love it also . . . The 18-270 stays on my D5500 and makes for a small and light walk around outfit. The 18-400 stays on the D500 and is also an excellent walk around outfit, although it is quite a bit heavier than the D5500 w/18-270 . . . I tend to use the D500 w/18-400 much more . . .

DeanS Loc: Capital City area of North Carolina

I have this lens on a Canon SL2 - no serious issues.

Busby Loc: St. Petersburg, Fl

maybe the 100-400 would be best for my walk around..how do they differentiate full or cropped by letter or just stated as such?

DeanS Loc: Capital City area of North Carolina

Methinks you eould want a much wider low end for a walkabout lens.

Busby Loc: St. Petersburg, Fl

I have been looking for FX, 18-400 lenses on BH Photo and Amazon and cannot find them.
Are you sure?

Busby Loc: St. Petersburg, Fl

When I went to Africa I took 2 cameras....one with 18-270 and one with 150-500...... I loved having both.