ND filters and X-H1 autofocus

[M_freeman]

How well does autofocus work with ND filters?

[gordonrussell76]

As well as any other camera. Its fine till you go below the auto focus low light threshold which I believe is -5, in practice I have not found it to be a blocker for flash photography outside or in studio, which is where I use them, YMMV

[jlmphotos]

Ah the beauty of mirrorless.  You can focus and do what you need with the ND filter(s) on - unlike dSlRs. I have not had any issues focusing with ND's on my Fuji's if that helps.

[mawz]

Depends on the ND filter and the light.

If you're using a mild one to get wide apertures, no problem. A strong one for landscapes? Likely OK, but may not be depending on light levels. A very strong one for long-exposure cityscapes & such? Focus before adding the filter.

Basic rule of thumb is that if you can handhold the shot, you can focus. 

[teaandcake]

Hi, I have an X-T30 and have just got a few ND filters. I’ve yet to try them out but just wondering how to focus with them, particularly the 10 stop? 
If I use auto focus or back button focus before adding the filter, as soon as I take my finger off the button has the camera unlocked the focus?

Sorry for such a stupid question but it’s been confusing me and I haven’t found a clear answer on google. 

[jlmphotos]

I use 10stop ND's for landscape work and I can focus just fine with my XT2, XH1.  If I stack my polarizer on top of the ND the cameras may "hunt" a bit.  Not sure why others here are having issues...

 

[jlmphotos]

On 9/19/2020 at 12:27 PM, teaandcake said:

Hi, I have an X-T30 and have just got a few ND filters. I’ve yet to try them out but just wondering how to focus with them, particularly the 10 stop? 
If I use auto focus or back button focus before adding the filter, as soon as I take my finger off the button has the camera unlocked the focus?

Sorry for such a stupid question but it’s been confusing me and I haven’t found a clear answer on google. 

You might want to set up back button autofocus.  There are tutorials online to get this setup.  Once you press the focus that's it.  You should not have to focus again unless you change the focal length/zoom in or out or accidentally move the camera.  Back Button Autofocus for Fuji.  I've been using that for my previous Nikons, and now all my Fuji cameras for ages.

 

[teaandcake]

On 10/7/2020 at 1:38 PM, jlmphotos said:

You might want to set up back button autofocus.  There are tutorials online to get this setup.  Once you press the focus that's it.  You should not have to focus again unless you change the focal length/zoom in or out or accidentally move the camera.  Back Button Autofocus for Fuji.  I've been using that for my previous Nikons, and now all my Fuji cameras for ages.

 

Thank you for this! Sorry for the huge delay in reply, I don’t think I got notified of your post. 
 

Ive set up back button focus so I use this when I remember.  I’ve been having a lot of fun with my filters and it’s so easy to use them with my Fuji camera.