what does each pin on lens do?

[Ladybird12345]

Hi to all
what do the pins on the camera body do
or whats the order of them
canon 450d thanks

 

[Canon Bob]

Okay

6 volts for the lens focus motor
0V (double width pin)
5.5 volts for the lens logic power
Data from camera to the lens
Data from lens to camera
Clock pulse for the data transmission
Logic 0 volts

Some lenses have three extra pins to detect whether an extender is fitted.

Bob

 

[Ladybird12345]

so one of the pins on my camera is stuck
its the third pin as you look into the camera
reading left to right ... ..... its the third one as you looking at this screen
any ideas on pulling it out i have used isopropyl
thanks

 

[andyred]

any ideas on pulling it out i have used isopropyl

Is it stuck completely in or is there any the of the pin head standing proud ?

Wondering if you can very carefully get hold of it - or alternately, have you tried pushing it in continually to see if it releases itself ?

 

[Kodiak Qc]

…i have used isopropyl…

•
Hi Ladybird
A good idea? Not so sure…
A student of mine had the same problem and I used successfully a silicon lubricant,
the same I use for the electronics in my guitars!

 

[Ladybird12345]

Is it stuck completely in or is there any the of the pin head standing proud ?

Wondering if you can very carefully get hold of it - or alternately, have you tried pushing it in continually to see if it releases itself ?

Nothing sticking out i have benn tipping it in and out in the hope it will pop i will keep trying this method thanks for reply

 

[andyred]

Nothing sticking out i have benn tipping it in and out in the hope it will pop i will keep trying this method thanks for reply

hopefully it will - good luck

 

[Ladybird12345]

hopefully it will - good luck

sorted

 

[Ladybird12345]

Okay

6 volts for the lens focus motor
0V (double width pin)
5.5 volts for the lens logic power
Data from camera to the lens
Data from lens to camera
Clock pulse for the data transmission
Logic 0 volts

Some lenses have three extra pins to detect whether an extender is fitted.

Bob

thanks for the info