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D5500 deliberately goes out of focus


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3 replies to this topic

#1
dswan

dswan

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It's D5500.  Now and again, when I push the button to kick in the autofocus, it goes crazy, focuses in and out a couple times and generally lands not where I want to focus.  It's way OUT of focus.  

 

I've tried cleaning the lens and the sensor, cleaned any filter that I have on and checked for things like twigs foreground of the field of view.  If it doesn't settle, after a few choice cusses, I turn off the camera, retract the lens to it's "off" position and then restart.

 

Any clues as to why this would happen?

 

>>>An update on this since I posted it in a different thread - I have cleaned everything, lenses, sensor, mount, mirror, etc and it's no better.

 

When it acts up, the manual focus ring does nothing.

 

I'm on the verge of throwing this thing in the lake.

 

Suggestions appreciated.



#2
g4aaw pete

g4aaw pete

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I suppose the most likely cause is the lens.
Anyone local to you that you could borrow another from?

I'd lend you mine, but I'm in the wrong country.

#3
Merco_61

Merco_61

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As it is an AF-P lens that is acting up, do you have the C 1.01 firmware installed?

 

You say you have cleaned the lens mount, but have you cleaned the contacts on both lens and camera? If so, what cleaner did you use? I always recommend using Deoxit Gold as it doesn’t only clean, but prevents new oxide from forming.



#4
dswan

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I cleaned all of the contacts, although not with the product you describe but with some alcohol and lens tissue.  The firmware is 1.02.