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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 27 Sep 2005 (Tuesday) 12:45
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STICKY: -=FAQ=- Teleconverter/T-Con Tele extender Discussion

 
RogerLin
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Nov 04, 2013 10:59 |  #661

sploo wrote in post #16423289 (external link)
You could try taping over the pins on the TC. The Canon 1.4x III and 2x III refused to take a shot with an 800mm mirror lens I tried, but with the pins taped over it worked.

I say "it worked", the image quality of a cheap 800mm mirror lens is dire. With a TC on it's terrible ;).

IT WORKED! Much obliged sploo! The camera (Canon 5D) takes a photo as planned with the Kenko 2x TC and Sigma 600mm mirror lens mounted! I do not know anything about quality yet but I'll give it a try tomorrow. You saved my day!




  
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sploo
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Nov 04, 2013 14:54 |  #662

RogerLin wrote in post #16423496 (external link)
IT WORKED! Much obliged sploo! The camera (Canon 5D) takes a photo as planned with the Kenko 2x TC and Sigma 600mm mirror lens mounted! I do not know anything about quality yet but I'll give it a try tomorrow. You saved my day!

You're welcome! You may not thank me when you see the quality though ;)


Camera, some lenses, too little time, too little talent

  
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joeseph
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Nov 19, 2013 02:31 |  #663

just for the record really, 1D3 with Sigma 2x DX TC stacked with a Canon 2x TC Mk II and a 300mm F/2.8 IS MK I resulted in this:


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autofocus was attempted, but not useable...

some fairly old canon camera stuff, canon lenses, Manfrotto "thingy", 1D MK II converted for IR, and now an M5
TF posting: here :-)

  
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pwm2
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Nov 19, 2013 04:40 |  #664

joeseph wrote in post #16462941 (external link)
just for the record really, 1D3 with Sigma 2x DX TC stacked with a Canon 2x TC Mk II and a 300mm F/2.8 IS MK I resulted in this:

thumbnail
Hosted photo: posted by joeseph in
./showthread.php?p=164​62941&i=i5186051
forum: Canon EF and EF-S Lenses


autofocus was attempted, but not useable...

Always nice to also see a 100% crop, since too much IQ gets lost in the scaling.


5DMk2 + BG-E6 | 40D + BG-E2N | 350D + BG-E3 + RC-1 | Elan 7E | Minolta Dimage 7U | (Gear thread)
10-22 | 16-35/2.8 L II | 20-35 | 24-105 L IS | 28-135 IS | 40/2.8 | 50/1.8 II | 70-200/2.8 L IS | 100/2.8 L IS | 100-400 L IS | Sigma 18-200DC
Speedlite 420EZ | Speedlite 580EX | EF 1.4x II | EF 2x II

  
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joeseph
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Nov 20, 2013 01:48 |  #665

pwm2 wrote in post #16463052 (external link)
Always nice to also see a 100% crop, since too much IQ gets lost in the scaling.

here's one if it helps any:


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some fairly old canon camera stuff, canon lenses, Manfrotto "thingy", 1D MK II converted for IR, and now an M5
TF posting: here :-)

  
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doofuss
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Nov 29, 2013 23:03 |  #666

I am currently on holidays in Hawaii and before I departed home I purchased the new Sigma 120-300 sports lens matched with the 2x teleconverter specifically to use on this trip.

I am using the lens and converter primarily with a Canon 1dx, but also with a Canon 7d.

Today the 2 x converter appears to have stopped working and I keep getting a message with each camera body that says "Error 01. Camera cant communicate with lens. Please clean contacts".

I have tried all my lenses by themselves with both camera bodies and they all work fine, but as soon as I attach the 2 x converter to any lens all I get is the error message.

I really need the adittional focal reach of the 2 x converter whilst I am here in Hawaii but I am unable to get it to work.

Can anyone advise of way to rectify the problem?


Canon 1dx & 7d gripped, Canon EF 100-400mm f/4.5-5.6 L, Sigma 120-300 f2.8 (sports), Sigma 70-200mm f2.8, Sigma 24-70 f2.8, Canon EFS 17-55mm f2.8, , Canon EF 50mm f/1.8, Sigma 8-16mm f4.5 - 5.6, Sigma 2 x teleconverter, Canon 600EX-RT Speedlight.

  
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pwm2
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Nov 30, 2013 00:37 |  #667

1) What happens if you clean the contacts?

2) What happens if you tape the extracontacts on the TC so only the "normal" contacts are used? If this works, then all EXIF info will be wrong because the camera will not know about the TC, but it might make it possible to get photos.


5DMk2 + BG-E6 | 40D + BG-E2N | 350D + BG-E3 + RC-1 | Elan 7E | Minolta Dimage 7U | (Gear thread)
10-22 | 16-35/2.8 L II | 20-35 | 24-105 L IS | 28-135 IS | 40/2.8 | 50/1.8 II | 70-200/2.8 L IS | 100/2.8 L IS | 100-400 L IS | Sigma 18-200DC
Speedlite 420EZ | Speedlite 580EX | EF 1.4x II | EF 2x II

  
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doofuss
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Nov 30, 2013 00:45 |  #668

pwm2 wrote in post #16489668 (external link)
1) What happens if you clean the contacts?

2) What happens if you tape the extracontacts on the TC so only the "normal" contacts are used? If this works, then all EXIF info will be wrong because the camera will not know about the TC, but it might make it possible to get photos.


So far I have only been able to "dust clean" the contacts with a lint free cloth as I dont have access to proper cleaning solutions here and the only proper camera shop on Maui is shut. I fly out to Oahu tomorrow morning so may have to look around there for a good camera shop when I arrive.

I haven't tried taping the pins yet.


Canon 1dx & 7d gripped, Canon EF 100-400mm f/4.5-5.6 L, Sigma 120-300 f2.8 (sports), Sigma 70-200mm f2.8, Sigma 24-70 f2.8, Canon EFS 17-55mm f2.8, , Canon EF 50mm f/1.8, Sigma 8-16mm f4.5 - 5.6, Sigma 2 x teleconverter, Canon 600EX-RT Speedlight.

  
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hollis_f
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Nov 30, 2013 01:08 |  #669

doofuss wrote in post #16489672 (external link)
as I dont have access to proper cleaning solutions

Vodka should do a reasonable job of cleaning contacts.


Frank Hollis - Retired mass spectroscopist
Give a man a fish and he'll eat for a day. Teach a man to fish and he'll complain about the withdrawal of his free fish entitlement.
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doofuss
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Nov 30, 2013 01:11 |  #670

hollis_f wrote in post #16489701 (external link)
Vodka should do a reasonable job of cleaning contacts.

Haha...I did actually read that on the net Frank, but I am a non-drinker and my hotel room doesnt have a mini bar.


Canon 1dx & 7d gripped, Canon EF 100-400mm f/4.5-5.6 L, Sigma 120-300 f2.8 (sports), Sigma 70-200mm f2.8, Sigma 24-70 f2.8, Canon EFS 17-55mm f2.8, , Canon EF 50mm f/1.8, Sigma 8-16mm f4.5 - 5.6, Sigma 2 x teleconverter, Canon 600EX-RT Speedlight.

  
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prconnection
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Jan 13, 2014 20:54 |  #671

Hello all. Today I received my cannon 1.4 tc mark II. Lens is a canon 100-400 L. Camera is digital rebel xsi. No auto focus. As soon as the TC is installed the LCD reads M only foe manual focus. Tried pin taping to no avail. Is it the camera body or just the way it is? Please help would a different body give me auto focus?


Canon 5D Mark III - Canon DR XSI - Canon 100-400L IS EF - Canon 16-35 L II - Canon 24-105L IS EF - canon TC 1.4 II -

  
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RAW-Shooter
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Jan 13, 2014 21:43 |  #672

prconnection wrote in post #16603429 (external link)
Hello all. Today I received my cannon 1.4 tc mark II. Lens is a canon 100-400 L. Camera is digital rebel xsi. No auto focus. As soon as the TC is installed the LCD reads M only foe manual focus. Tried pin taping to no avail. Is it the camera body or just the way it is? Please help would a different body give me auto focus?

Only pro-bodies can AF at f8. So, the 100-400 will not AF on your camera. I am not sure if the pin tape trick works on a Canon TC at all. Never tried and don't need to...;)

Cheers.


BoKo
Olympus OM-D E-M1 Mark II | Oly 12-60mm f/2.8-4 SWD | Oly 40-150 f/2.8 PRO | Oly 300mm f/4 PRO | and a bunch of good old manual lenses

  
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sploo
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Jan 14, 2014 03:05 |  #673

prconnection wrote in post #16603429 (external link)
Hello all. Today I received my cannon 1.4 tc mark II. Lens is a canon 100-400 L. Camera is digital rebel xsi. No auto focus. As soon as the TC is installed the LCD reads M only foe manual focus. Tried pin taping to no avail. Is it the camera body or just the way it is? Please help would a different body give me auto focus?

Taping the pins will "work" - in the sense that the body may try to AF, but there's a reason a non-5DIII/1D body won't AF beyond f5.6; i.e. you can try, but unless you're in really good light it's unlikely to work well. The lens may stutter and hunt a lot, which probably wouldn't do it much good over time either.


Camera, some lenses, too little time, too little talent

  
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prconnection
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Jan 14, 2014 20:17 |  #674

Thanku


Canon 5D Mark III - Canon DR XSI - Canon 100-400L IS EF - Canon 16-35 L II - Canon 24-105L IS EF - canon TC 1.4 II -

  
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Mark ­ K
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Jan 15, 2014 08:10 |  #675

I have just come across this great produce, one made by X pro claiming about 1.7x with two component. By removing the central optical part, the adapter becomes a 25mm ext tube. Optically it is amazingly sharp...it cheats the camera by having a 1.4x TC and I have no problem using it on 100-400L with autofocus on 5D3. Here is one taken by 70-200

IMAGE: http://farm3.staticflickr.com/2840/11907752843_d0783f576d_b.jpg

Canon, Nikon, Sony, Minolta, Fujifilm, Sigma, Tamron & Tokina

  
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-=FAQ=- Teleconverter/T-Con Tele extender Discussion
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