coninpa
Posts: 251
Joined: Mon May 16, 2005 3:36 pm

Canon Converter 1,4x With 100-400 L Is F/5,6

Wed Aug 16, 2006 2:35 am

Hi all,

I have the Canon 100-400 f/5,6 L IS lense.
Can you comment on your experience with the combination of this lense with a Canon converter 1,4x II, regarding the quality of the image, autofocus, etc ?
Any other suggestion welcome.

Thanks in advance
Patrick
Patrick De Coninck
 
Smalbany
Posts: 255
Joined: Fri Aug 06, 2004 2:29 am

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Wed Aug 16, 2006 2:46 am

I have the 1.4TC and use it with the 70-200 F4. It works well on the 300D.

With the 100-400 I believe that AF will only work on a 1 series body. Since the 100-400 is known to be a little soft at the 400 end, I would imagine that the TC would make that worse.

I have not heard of any aviation photographers that have used the combo with success (at least anet standards).
 
aero145
Posts: 2867
Joined: Tue Jan 04, 2005 4:59 am

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Wed Aug 16, 2006 3:15 am

 redflag  no 


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Photo © Javier Guerrero - AirTeamImages



Javier Guerrero has done it!

I think you can get some auto-focus by taping some contacts on the Extender... I don't know which contacts, you can find that out on the net.

But AFAIK it isn't an extremely successful thing.
 
NSMike
Posts: 249
Joined: Fri Mar 11, 2005 11:38 am

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Wed Aug 16, 2006 3:43 am

I've tried the tape thing, but the AF hunts a lot and the image quality isn't there in my opinion.
Pearl Snares, Taye Drums, Sabian Cymbals, Remo Heads, Los Cabos Sticks
 
Tin67
Posts: 268
Joined: Mon May 10, 2004 3:49 am

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Wed Aug 16, 2006 3:54 am

I was at Farnborough and chatting to a guy who was using a 1Ds with a 100-400 and 1.4 extender. As mentioned above the EOS 1 range will autofocus with this combo and he claimed he was getting good results.

I wouldn't want to use manual focus though!

Martin
 
coninpa
Posts: 251
Joined: Mon May 16, 2005 3:36 pm

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Wed Aug 16, 2006 5:00 am

Quoting Tin67 (Reply 4):
As mentioned above the EOS 1 range will autofocus with this combo and he claimed he was getting good results

Do you know if anyone has used the EOS 5D (my body) with that combination ?
Patrick
Patrick De Coninck
 
javibi
Posts: 1295
Joined: Sat Oct 02, 2004 5:55 pm

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Wed Aug 16, 2006 7:38 am

Quoting Coninpa (Thread starter):
Can you comment on your experience with the combination of this lense with a Canon converter 1,4x II, regarding the quality of the image, autofocus, etc ?

AF: you may try the tape trick, but I think you'd better learn to use MF, as AF will work poorly. The trick is described here:
www.fredmiranda.com/TipsPage/

As for quality, it does suffer, but if you are not only shooting for A.net, you'll find the increase in range (for a relatively low price) is worth it:
www.airteamimages.com/33659.html
www.airteamimages.com/33634.html

My 2 cents

j
 
birdlike
Posts: 8
Joined: Wed Feb 05, 2003 3:33 am

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Thu Aug 17, 2006 1:21 am

My experiences with the 100-400 + 1.4 Canon converter (on a 5D) are not satifying for A-net use. MF is not fast enough for flying aircraft, unless you are very trained. So I think it would bring you more quality to crop than to make your lens more "powerful" by help of a converter.
We fly to find out that the birds are more elegant than us ...
 
coninpa
Posts: 251
Joined: Mon May 16, 2005 3:36 pm

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Thu Aug 17, 2006 4:27 am

Thank you all for your advices and opinions.

Cheers
Patrick
Patrick De Coninck
 
planedoctor
Posts: 284
Joined: Mon Mar 19, 2001 12:21 pm

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Fri Aug 18, 2006 12:23 am

I've used the 1.4x on the 100-400 IS and I was not satisfied with the results overall. The shot shown above by Javier Guerrero is fantastic, but for a long exposure he may very well have stopped it down on a tripod for the 6 second exposure, in which case the image quality would be much improved over the wide-open shooting you'd typically be doing while hand-holding the lens.

Ken
 
timdegroot
Posts: 3258
Joined: Wed Apr 24, 2002 10:37 pm

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Fri Aug 18, 2006 12:29 am

I've used it and when you focus correctly it isn't all that bad. You also need stop it down quite a bit to eliminate at least some vignetting.


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It's ok to try it sometimes, but I would never ever count on it as something I'd shoot with all day. You just lose to many shots using MF, which is a pain on the 100-400 especially when extended at 400mm.

Like Javier said, it's ok to try different things which will most likely not make in onto a.net.

Tim
Alderman Exit
 
coninpa
Posts: 251
Joined: Mon May 16, 2005 3:36 pm

RE: Canon Converter 1,4x With 100-400 L Is F/5,6

Fri Aug 18, 2006 5:15 pm

Nice shot though Tim ! I definitely have to go to Schiphol...

Thanks again all. I'll not buy it... Other forums have basically the same opinion and a friend pro photographer has got too many problems with it and stopped using it.

I'll spare money to buy another longer lense... Sad

Cheers
Patrick
Patrick De Coninck

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