D5300 little lever at lens mount


New member
Does somebody know what this little lever is for?



Senior Member
nope had one of these over 5 years and never noticed it , so much so i had to get the camera out and have a look - still no idea even after pressing it lol


Senior Member
oh did a quick google search and its for lenses with an aperture ring , a tab pushes it in and tell the camera to not throw codes - IE G series lens manual focus only


New member
I noticed that my lens Nikon AF-S 17-35 mm 1:2.8 mounted on D5300 does not work anymore (It was working before)
The message is: "Lock lens aperture ring at minimum aperture (largest f/number)" and cannot take any picture or do setting. I found out that on the lens’ ring, it has a notch that when turned in completely, this notch depress the lever in the front body of the camera.
The lever on the body of my camera somehow did not depress completely down prompting the error message. If I manually depress that little level in the camera body, everything work fine, err message go away.
The little lever in the face of my camera is kind of worn out. It supposed to be depressed completely for the lens to work


Senior Member
I don’t know how to fix that little lever to make my lens work
Welcome aboard, enjoy the ride. We look forward to seeing more posts and samples of your work.

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I am sure that someone who has a D5300 with help you out.