2x Converter Recommendations

[Foxtrot1]

Hello, I have a canon T7i. Have a Tamron 18-270 lens on it. Looking to buy a 2X converter to double the lens capacity. What canon converter do you recommend. Heading to Africa and and want to maximize my chances of capturing great wildlife shots. 

[Stephen]

We do not support third-party lenses in the Canon Community. If you need help with your non-Canon lens, you should contact the manufacturer of your lens to determine their recommended course of action.

[shadowsports]

Greetings ,

Personally, I do not recommend buying a TC to use with this lens.  

Things to consider.  

You will lose one stop of light using a 1.4x TC and two stops using a 2.0x TC.  The maximum aperture at 270mm is 6.3 taking you to f7.1 with a 1.4x and f9 with a 2.0x TC.  It's unlikely autofocus will function.  You'll also experience some loss in IQ.  You'd be better off buying a lens with longer reach like the Sigma 60-600, 150-600 or the Tamron 150-600 G2.  All of these lenses can be had used at very reasonable prices.  

[Waddizzle]

“ It's unlikely autofocus will function. “

The AF will definitely not function, if you try to use a teleconverter with that [lens]  combo and any Rebel camera body.

[Foxtrot1]

Thanks so much

[kvbarkley]

Just get a sigma or Tamron 150-600 and call it a day. 

[ebiggs1]

Do not try a 2x tel-con on any lens especially one like the Tamron 18-270. They simply have too many downsides and on a lower quality lens that will be even worse.

"Just get a sigma or Tamron 150-600 and call it a day."

Yes, do that! 😊

[wq9nsc]

I agree with the others, buy one of the 150-600 mm zooms, you will have a MUCH better setup that will actually capture some good photos!  I bought a Sigma 150-600mm for use on hiking trips where I didn't want to carry any of my large heavy Canon "great white" lenses and I was amazed at the price/performance ratio for the Sigma 150-600.  It doesn't perform as well as my Canon primes but it costs a small fraction of what a couple of my Canon primes cost and the weight is also a fraction of those lenses.  It performs better than it ought to for the price 🙂

Rodger

[ebiggs1]

"... I was amazed at the price/performance ratio for the Sigma 150-600.  It doesn't perform as well as my Canon primes ..."

You need to try the Tamron G2 model. It is another notch better than the Sigma C.