Customer Reviews

Tamron AF 2X Teleconverter for Canon Mount Lenses

5 star:		(4)
4 star:		(4)
3 star:		(1)
2 star:		(0)
1 star:		(2)

 

 

I purchased this for astrophotography purposes, I'm using it with a Canon Rebel XSi (EOS 450D).

As the description says, using this costs you 2 stops. Autofocus has been hit and miss for me; my 50mm prime searches a bit, but usually focuses fine. My Tamron 70-300mm Di LD lens won't autofocus at all.

Quality-wise, I get noticable purple fringing in some images, but nothing that's uncorrectable.

I'm definitely recommend this to anybody searching for a cheap teleconverter - If you want quality though, get the Canon version.

I wanted a larger lens and not the price.
On my 70 to 300mm cannon lens it works ok.
At higher lens values it has a hard time auto focusing but just switching to manual solved that. I shot mostly race cars, durning the day so the loss of 2 f-stops is not a problem. Have not tried it inn teh early or late hours with lower light. Pictures are sharp and clear.

Works great. The only problem is the f-stop is a little off, but with a little practice you'll have it working perfect in no time.

Great product. I read other peoples reviews and opinions before I made up my mind and while they were mixed I thought I would try it. It has turned out to be one of the best photo equipment purchases I have made. Tamron has yet to let me down.

Was looking for a inexpensive way to get 600mm telephoto for my Canon 20D. Decided to try Tamron 2x teleconverty.... here are my initial assesments:

Pro's
1) Quality/construction is good.... I find this on previous Tamron products used in the past.
2) 2x Telephoto using a Canon EF 70-300mm f/4-5.6 on a Canon 20D DSLR is good.

Con's
3) Biggest downside to this combination is that you must manually focus... ie autofocus function of Canon lense doesn't work

Overall
4) The Tamron 2x teleconverter does what I expected for the price. Now looking for a lens with a low aperture <=2.8 where the autofocus may work.

Description of this product is incorrect. This teleconverter will ONLY MOUNT TAMRON LENSES ON A CANON CAMERA BODY!!!!

The instructions included with the teleconverter specification notes state "This device is designed specifically for use with Tamron lenses. It is not compatible with other lenses."

This is in direct conflict with the Amazon description "Tamron AF 2X Teleconverter for Canon mount lenses"

I am in the process of returning the teleconverter. It was very disappointing Xmass present.

Tamron AF 2x teleconconverter for Canon Mount Lenses

When I first tried to use this, it would not attach to my EF lenses (18-55mm zoom, 75-300mm zoom). I am using a Canon EOS T1i.

The teleconverter would fit very snugly on the camera but I could not get either of my lenses onto it.

So I was quite upset. I am stationed out of the country and had purchased it through Amazon while on a visit. I was not able to try it until I got back "home". So I figured I was stuck with it and a week later I actually decided I would try and "make it fit" and started to look into a way to "adjust" it so it would work for me. While examining it for fit I managed to connect one of my lenses to it and then was also able to connect the other as well.

I did not make any "adjustments", I figure that there may have been a small burr or something stopping me from being able to connect the lenses. The teleconverter is a tight fit both to the lenses and the camera and will work better for it. Perhaps I was just not patient enough in trying to connect it the first time. I have noticed other reviews commenting on fitment issues with Canon lenses so maybe there is a build problem with the Tamron teleconverter...

Under operation, with my camera, my auto focus actually worked at full zoom...I was taking pictures of a house & landscape in somewhat overcast conditions in the middle of the day and I was not using a tripod. I took pictures at full zoom with and without the teleconverter and I am very happy with the results.

I am a novice photographer and this teleconverter certainly seems to be worth the money for my current applications.

Working now for me.

Only 4 stars for the early angst...

fyi: I did not receive anything for writing this review...disappointed that Amazon allows "paid" reviews...

Perhaps I got a bad one but I found this teleconverter completely useless. My equipment consisted of a Canon 60D and the latest Tamron 70-300mm telephoto lens with VC. I'm aware of the limitations as well as the probable need for manual focus. Unfortunately, no matter what settings I used, tripod or handheld with image stablization, or how well I focused the lens, this teleconverter could not produce a sharp picture. I went as far as taking a photo with just the lens and then taking the same exact photo with the teleconverter. NOTE: I took several photos to account for human error and took the best photo from each series. I then took each photo into Photoshop. I enlarged the lens-only image by 185% (2x is more like 1.85%) so that the subject was the same exact size. Even enlarged, the lens-only image was easily sharper than the teleconverter's image. So, in essence, this makes the teleconverter completely useless. Like I said, maybe I got a bad one but I can't recommend this item to anyone.

My husband drives a truck for a living and now can photograph all of the wonderful sites. A must have for anyone who wants to take clear photographs.

nowhere in the item description did it state " this teleconverter is not designed for digital use" It does work with my XTi/ tamron lens