Which extender? (1 Viewer)

Xmor

Well-known member

• Nov 10, 2014

• #1

I want to get a 1.4 extender to go with my Canon 60D and Sigma 150-500 APO DG OS. I also want to be able to use it with a Tamron 70-300 Di VC USD. Which would be the best extender to go for. Budget I have is about £400.00

 

J

johnf3f

johnf3f

• Nov 10, 2014

• #2

I wouldn't bother as you will loose AF and significant IQ. With only a few exceptions extenders are best kept for F4 or faster prime lenses.
You will almost certainly be better off cropping.

 

GYRob

Well-known member

• Nov 10, 2014

• #3

Yes I agree with John I don't think you would gain anything with a tc.

Rob.

 

HermitIbis

Well-known member

• Nov 11, 2014

• #4

Xmor said:

I want to get a 1.4 extender to go with my Canon 60D and Sigma 150-500 APO DG OS. I also want to be able to use it with a Tamron 70-300 Di VC USD. Which would be the best extender to go for. Budget I have is about £400.00

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I used the same Tamron 70-300, on Canon 600D. The combo was a bit short for birds, so I bought a Kenko 1,4x Teleplus Pro300, after reading the long review by a renowned German site: http://www.traumflieger.de/desktop/telekonverter/konvertertest2_teil4.php

The test has four parts, my link goes to the final conclusions. I was satisfied with the Kenko, until I bought a SX50 that offered larger birds, if a bit pixelated.

 

Roy C

Occasional bird snapper

• Nov 11, 2014

• #5

I go along with the others, you would be better off saving the money towards a longer lens or one that takes an extender well (mainly f4 or faster but a few exceptions). Neither of your lenses will be that good with an extender even if you manually focus.

 

Jungle

Active member

• Nov 11, 2014

• #6

Slightly different question but on the same lines -

Would a canon 200mm f2.8L prime lens coupled with a canon 2x III extender be as usable and fast as the canon 400mm f5.6 birding lens, it should be smaller and lighter?

 

Roy C

Occasional bird snapper

• Nov 11, 2014

• #7

Jungle said:

Slightly different question but on the same lines -

Would a canon 200mm f2.8L prime lens coupled with a canon 2x III extender be as usable and fast as the canon 400mm f5.6 birding lens, it should be smaller and lighter?

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It would certainly not be as fast to AF (by a long margin) and the IQ would not be as good either.

 

Last edited: Nov 11, 2014

Xmor

Well-known member

• Nov 11, 2014

• #8

Thanks for the replies one and all. Glad I asked the question. Now to find something else to spend the money on.

 

J

johnf3f

johnf3f

• Nov 11, 2014

• #9

Xmor said:

Thanks for the replies one and all. Glad I asked the question. Now to find something else to spend the money on.

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Don't spend - save for something big and white from Canon:t::t: