Canon Community Canon Community
 


Reply
Highlighted
New Contributor
Posts: 1
Registered: ‎12-13-2019

Canon cameras and focus confirmation chip adapters!!

I’ve been trying to get my beautiful Nikkor 50 1.2 AIS on my canon cameras with no luck. More specifically I used an adapter with a focus confirmation chip so that I could get the focus “beep”. Basically I would get focus as close as I could with the viewfinder and then hold down AF-on (I’m a back focus guy) and gradually rack focus back and forth until I heard the confirmation beep. Usually took about half a second to two seconds max. It worked flawlessly, until it didn’t. For some reason my camera hated the adapter and gave me a lens communication error after a few shots. I tried everything and eventually left my beautiful lens on the shelf because nothing worked

Now that I have an eos R, I want to use the brilliant little focus guide system (the overlapping arrows). I put it on my R when I got it and it worked flawlessly! And then, of course, communications error. And yes, I have it set up to release without lens. That was the first thing I tried.

Out of frustration I tore the chip off the adapter thinking I could use focus guide without a communicating lens (really all the chip does is tell the camera it has a lens on it). After tearing it off and trying again, the focus guide no longer shows up as the camera thinks there’s no lens on it.

Aghhhhhhh! Any thoughts on what I can do here?

Highlighted
Reputable Contributor
Posts: 549
Registered: ‎10-21-2016

Re: Canon cameras and focus confirmation chip adapters!!

[ Edited ]

The best focus confirm chips have gold plated contacts but some of the cheaper ones have tinned (silver coloured) connectors, these are more prone to dodgy connections with the camera thereby causing communication errors.

Highlighted
VIP
Posts: 10,750
Registered: ‎08-13-2015

Re: Canon cameras and focus confirmation chip adapters!!

Doesn't the EOS-R have focus peaking?

----------------------------------------------------------------------------------------------------------------------------------------------------------

"Doctor told me to get out and walk, so I bought a Canon."
Highlighted
VIP
Posts: 13,311
Registered: ‎12-07-2012

Re: Canon cameras and focus confirmation chip adapters!!

"... thoughts on what I can do here?"

 

The best solution is the Canon RF 50mm f/1.2L USM Lens. Sell the Nikkor, you are in the Canon world now.  Be happy because the Canon RF 50mm f/1.2L USM Lens is a better lens besides.

There will be no issues. No adapters.  Just as good to better IQ and performance.

EB
EOS 1DX and 1D Mk IV and several lenses!
Highlighted
Reputable Contributor
Posts: 869
Registered: ‎12-24-2013

Re: Canon cameras and focus confirmation chip adapters!!

You just need to get a better AF chip. Search out the "Dandelion" or "Euro" chip.

Mike Sowsun
S110, SL1, 80D, 5D Mk III
Highlighted
VIP
Posts: 10,750
Registered: ‎08-13-2015

Re: Canon cameras and focus confirmation chip adapters!!


@MikeSowsun wrote:

You just need to get a better AF chip. Search out the "Dandelion" or "Euro" chip.


I'm with Ernie.  Time to use a native lens.  

 

The old Nikkor seems more trouble than it is worth.  It also lacks the coatings that "digital lenses" have to reduce light reflecting off of th sensor assembly back up into the body of the lens.  Film does not create reflections, so there was no need to design the glass to minimize it.

----------------------------------------------------------------------------------------------------------------------------------------------------------

"Doctor told me to get out and walk, so I bought a Canon."
Highlighted
VIP
Posts: 13,311
Registered: ‎12-07-2012

Re: Canon cameras and focus confirmation chip adapters!!

"The old Nikkor seems more trouble than it is worth."

 

Absolutely the way to go. Nobody likes adapters and they are always a compromise. I have done it every way you can imagine. Time to cut your loses and go Canon since you already are 1/2 way there. That new R 50mm f1.2 lens is outstanding.

EB
EOS 1DX and 1D Mk IV and several lenses!
Highlighted
Honored Contributor
Posts: 5,558
Registered: ‎06-25-2014

Re: Canon cameras and focus confirmation chip adapters!!


@Waddizzle wrote:

@MikeSowsun wrote:

You just need to get a better AF chip. Search out the "Dandelion" or "Euro" chip.


I'm with Ernie.  Time to use a native lens.  

 

The old Nikkor seems more trouble than it is worth.  It also lacks the coatings that "digital lenses" have to reduce light reflecting off of th sensor assembly back up into the body of the lens.  Film does not create reflections, so there was no need to design the glass to minimize it.


I agree with Ernie and Waddizzle. You can keep beating that dead horse until the time you've spent is worth the cost of a new Canon lens, then give up and buy the Canon lens anyway. It's a way of getting one lens for the price of two.

Bob
Philadelphia, Pennsylvania USA
Highlighted
VIP
Posts: 13,311
Registered: ‎12-07-2012

Re: Canon cameras and focus confirmation chip adapters!!

"It's a way of getting one lens for the price of two."   Smiley Very Happy  Good one there Robert.

EB
EOS 1DX and 1D Mk IV and several lenses!
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