Canon Community Canon Community
 


Reply
Respected Contributor
Posts: 1,712
Registered: ‎02-17-2016

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

Third party lenses cheat and tell the camera they are *really* 5.6 or so to get around these limitations.

Occasional Contributor
Posts: 5
Registered: ‎04-27-2017

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

3rd pary as in my 150-600 sigma lense. can u explain more in detail. 

Esteemed Contributor
Posts: 4,048
Registered: ‎11-13-2012

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

Third party is a term used for items not the same brand as a base unit. You are the first party, Canon is the second party. If you are using a non-Canon accessory it is a third party item.
John Hoffman
Conway, NH

1D X, Rebel T5i, Many lenses, Pixma PRO-100, MX472
Honored Contributor
Posts: 7,688
Registered: ‎12-07-2012

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

Let me clear up some points I think you have glossed over.

 

Most any of these combinations 2x, 1.4x, a100-400mil or even the 150-600mil, whatever, will work.  Or perhaps, they can be made to work phrases it better. I have even stacked converters and got it to 'work'.  But that word work is pretty arbitrary. Everything in any lens suffers when an extender is used.  How much is, OK, is up to you.  

 

The problems will multiply because of the crop factor of your T7i, also.  At 400mm (640mm for you) most people can get decent photos with out too much effort.  600mm (960mm for you)*1.4

has a bit more challenges.  However, you are talking in the area of a 1200mm and more.  At that focal length even the waves in the atmosphere become a problem.  AF will be slow if not impossible (there are tricks to get it to AF).  The VF will become darker.  ISO will have to be set very high if not maxed out.  A good tripod will be mandatory.

 

The example of the flower posted earlier which may just be a snap shows how difficult even 400mm is. One other suggestion for you, do you have a good post editor?  I hope so because that is where great photos are made.

A lot of Canon stuff. Along with, a lot of other stuff.
Occasional Contributor
Posts: 5
Registered: ‎04-27-2017

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

Agreed. Makes more sense now. so now it my T7I body that is becoming the issue now or i shouldnt worry to much about a full zoom that much anyway.. 

 

 

since the sigma 150-600 should just be as sufficient enough. my thing was i wanted to have a canon on canon vs a sigma lense on a canon camera . and figured since i hace the new t7i i should get the new 100-400 and returen my sigma lense ?

 

 

what do u think on this ?

Esteemed Contributor
Posts: 2,094
Registered: ‎11-14-2012

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

The Sigma (or Tamron) has lots more reach & a lot of us use it for that reason. It's a matter of what will work that you can afford and for me it's the 150-600 & my old 100-400 (ver 1) is on standby.

"A skill is developed through constant practice with a passion to improve, not bought."
Honored Contributor
Posts: 7,688
Registered: ‎12-07-2012

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

"what do u think on this ?"

 

You Rebel T7i is fine.  Matter of fact, it is a great little camera.  The idea of adding extenders is what is not so great.

Stick with your T7i and Siggy 150-600mil and forget the extenders.

 

"i wanted to have a canon on canon"

 

There is a possibility Canon is going to release their own 150-600mm in the near future.  So hang on...............

A lot of Canon stuff. Along with, a lot of other stuff.
Respected Contributor
Posts: 1,674
Registered: ‎02-26-2015

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

[ Edited ]

sridzyowski wrote:

Hi Everyone,

Im new to photography. My Wife loves to take pictures of flowers and insects however I mainly like to take pictures of Birds from a distance and other things further away like the moon with my powershot sx60 

SO MY QUESTION IS. 

 

I just purchased the new Rebel EOS T7I .. Love it. but looking to ger the   EF 100-400mm F4.5-5.6L IS II USM .. but i was also looking into purchasing an extender with it and figured why not get the   Extender EF 2x III . Would all this be possible and work with my T7I .. or would i just need to get the 1.4x ? 

 

 

All answers are helpful as well as any suggestions. 

Thanks Ahead of time

 

 


Since the T7i supports autofocus at f/8 on 27 of its AF points the EF 100-400 L IS II is your clear choice. With the EF 1.4X II TC it is sharper than the Tamron 150-600 and the Sigma 150-600 C. It is as sharp as the Sigma 150-600 Sport, but at half the weight.

 

A00A1697-3.jpg

 

EF 100-400 L IS II with 1.4X III, 560mm

Respected Contributor
Posts: 1,674
Registered: ‎02-26-2015

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I

[ Edited ]

As someone else mentioned with its small minimum focus distance, the EF 100-400 L IS II and 1.4X TC makes it a great lens for all kinds of wildlife.

 

A00A3353.jpg

 

EF 100-400 L IS II and 1.4X TC III, 560mm

A00A6106.jpg

EF 100-400 L IS II and 1.4X TC III, 560mm

 

A00A8938.jpg

 

EF 100-400 L IS II and 1.4X TC III, 560mm

Respected Contributor
Posts: 1,674
Registered: ‎02-26-2015

Re: EF 100-400mm F4.5-5.6L IS II USM + Extender EF 2x III + Rebel EOS T7I


sridzyowski wrote:

Agreed. Makes more sense now. so now it my T7I body that is becoming the issue now or i shouldnt worry to much about a full zoom that much anyway.. 

 

 

since the sigma 150-600 should just be as sufficient enough. my thing was i wanted to have a canon on canon vs a sigma lense on a canon camera . and figured since i hace the new t7i i should get the new 100-400 and returen my sigma lense ?

 

 

what do u think on this ?


If you are still within your return period, I would return the Sigma and get the Canon EF 100-400 L IS II.

powered by Lithium

LIKE US on Facebook FOLLOW US on Twitter WATCH US on YouTube CONNECT WITH US on Linkedin WATCH US on Vimeo FOLLOW US on Instagram SHOP CANON at the Canon Online Store
© Canon U.S.A., Inc.   |    Terms of Use   |    Privacy Statement