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  1. #1
    Senior Member

    How to lock focus on D3500?

    Say I use MF or AF to focus a subject and I want to lock focus ring to that distance. Is there a simple way to lock focus from that point? (AE-L/AF-L is way too much for me to use, especially the button need to be pressed all the time. I need free fingers all the time after focus locked

    I wonder if I use MF to focus on a certain distance and then move the camera to other position, angle, or rotate, etc without touching the focus ring and zoom, what chance is that I would lose the previous focusing point?

    Appreciate all the answers and helps.


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  2. #2
    Senior Member
    Bikerbrent's Avatar

    Re: How to lock focus on D3500?

    The D3500 does not work well with manual focus lenses (no metering), and will not autofocus with any AF lens with an aperture ring and will not autofocus with any traditional AF or AF-D lens with screw-type autofocus.
    Brent: Poway, CA
    D7200, D200, F100
    Tokina 12-24mm
    Nikon 18-200mm
    Tokina 28-70mm f2.6-2.8
    Nikon 80-200mm f2.8
    Sigma 150-600mm
    Nikon 50 AF f1.8
    Tokina 100mm f2.8 Macro
    Nikon SB800

  3. #3
    Senior Member

    Re: How to lock focus on D3500?

    Thanks for replying, Brent.

    But ??? All I have are AF-P 18-55mm and AF-P 70-300mm kit lenses. Using them, MF and AF work fine. The situation I want to lock focus is when done with hyperfocal distance... I want to keep focusing point at HF distance. Any simple way except AE-L/AF-L or "taping" thing?

  4. #4
    Senior Member

    Re: How to lock focus on D3500?

    Looking at the D3500 manual I don't see an AF/MF switch on the camera body. You could focus, then switch the AF/MF button on the lens to MF and don't touch the MF ring. It looks like the AF-P 70-300mm has that option but not the 18-55mm. Another way would be to use back button focus with shutter button focus disabled.

  5. #5
    Senior Member
    Needa's Avatar

    Re: How to lock focus on D3500?

    Another way would be to use back button focus with shutter button focus disabled.
    As Andy said you should give this a try. Myself I would not go back to shutter focus.
    Last edited by Needa; 02-15-2020 at 01:00 PM.

  6. #6
    Senior Member

    Re: How to lock focus on D3500?

    I don't think back button focus will work right on the d3500. Yes you can set the back button to perform focus, but there is no release priority setting on the camera for af-s or af-c. So you can focus with the back button, but will not be able to release the shutter if you recompose and the camera no longer sees focus under the focus point. I can't test this, but that's how it reads to me, same as my old d3100.
    I must have a really good camera.

  7. #7
    Senior Member
    Needa's Avatar

    Re: How to lock focus on D3500?

    A quick look at a d3400 video seems to indicate it will work and hold focus lock. Maybe @blackstar can give it a try and let us know.

  8. #8
    Senior Member

    Re: How to lock focus on D3500?

    Quote Originally Posted by Needa View Post
    A quick look at a d3400 video seems to indicate it will work and hold focus lock. Maybe @blackstar can give it a try and let us know.
    It would be nice if Nikon did make that work. My d3100 won't fire if if I recompose with bbf. On the d7000 I had to of course set menu a1 to release priority. Starting with the d7100 or d7200 they snuck something in to force release priority regardless of a1 when you set the back button to af-on. So they could have definitely fixed the d3000 series to make bbf work right.
    I must have a really good camera.

  9. #9
    Senior Member

    Re: How to lock focus on D3500?

    First, I was totally confused about the AF/MF button on the lenses because I couldn't find any such button on my lenses. Second, I had no idea about the "back button" either. So I dived into the internet info world and came up with this: the back button on D3500 is actually the AE-L/AF-L button. Then I set it to "AF-on" and play a little. If I use viewfinder, it seemed work well that I can turn to focus an object by pressing the B button and release the button, turn my camera away from the object and move back to the object and it's still on focus. If I use live view, not sure the focus is locked after releasing the B button though. Any comment or correction on my play? Thanks

  10. #10
    Senior Member

    Re: How to lock focus on D3500?

    @nickt, I tried using the B button on my D3500 and it worked with using shutter button to take a picture. But not sure if I have to keep pressing the B button (to maintain focusing) when pressing the shutter?





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