Viltrox 16mm f1.8 focus problem

Do you have the mf ring "disabled" in the camera settings? If you are bumping the ring while holding it, then the camera thinks you are trying to manually override the af.

Just got my copy of the 16mm f1.8 last night and could not connect the lens to my computer using a known good usb-c to usb-c cable as shown on the Viltrox website. Also noticed no firmware listed for the Z lens on the site.

Went to connect using the iPhone app and couldn't get it to work - shows a bluetooth symbol, but no listing on the iPhone of any bluetooth connection.

Then ran the iPhone app for Viltrox on my MacBook Pro connected to the lens and was able to connect ... and then eventually was able to update the firmware from ver. 1.03 to 1.08.

Try updating to firmware ver. 1.08 and see if that helps.

asyfor said:

Hi
I ordered a Viltrox 16mm f1.8 Z
I tried it now on two different cameras, and the autofocus and manual focus is switching constantly on both cameras. Nikon Zfc and Nikon Z6.
Firmware is the latest on the lens v1.03 according to the app.
I updated firmware on cameras too, still doing it.
If I switch to manual focus on the lens, then it stays in manual.
But if I switch back to auto focus, it switching between AF and MF.
Can I reset somehow the lens? What can I do? Did somebody experience this problem already?

Click to expand...

Hi, did you solve the problem? I've got a z6III and somebody told me that there are some of theese lens of viltrox that present this issue even with the latest firmware....

I also have a focus problem with the Viltrox 16mm F1.8 when using ND filters on a Z6. Never had the issue with any of the Nikon glass with ND filters previously.

I tend to focus without the filter and switch to manual focus and attach the filter and take the shot - some say that what you should be doing when it comes to ND filters anyway.

George Paulides said:

I also have a focus problem with the Viltrox 16mm F1.8 when using ND filters on a Z6. Never had the issue with any of the Nikon glass with ND filters previously.

I tend to focus without the filter and switch to manual focus and attach the filter and take the shot - some say that what you should be doing when it comes to ND filters anyway.

Click to expand...

What stop level of filter are you using. Some strong filters don't allow the camera to focus and it's not necessarily a lens or camera issue. For example, in some cases I cannot autofocus some of my lenses with my 10-stop ND filter and have to focus first, then attach the filter, and then shoot especially doing some long exposures -- in low light -- say during sunrise/sunset where the scene appears completely dark to the camera.

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sirhawkeye64 said:

What stop level of filter are you using. Some strong filters don't allow the camera to focus and it's not necessarily a lens or camera issue. For example, in some cases I cannot autofocus some of my lenses with my 10-stop ND filter and have to focus first, then attach the filter, and then shoot especially doing some long exposures -- in low light -- say during sunrise/sunset where the scene appears completely dark to the camera.

Click to expand...

Well, I have used 3/6/10-stop ND filters. Obviously 10-stops will be a problem with autofocus but I feel that on occasions even 3-stops proved troublesome on a number of occasions in fading light (usually shoot seascapes around sunset time).

I feel that the Nikon glass seems to handles the autofocusing with 3/6-stop ND filters better than the Viltrox. Having said that I have not updated the FW on the Viltrox and at the end of the day it's not so hard to autofocus on the subject, click over to manual focus and place the ND filter on (easy with a magnetic filter system) and take the shot.

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George Paulides said:

sirhawkeye64 said:

What stop level of filter are you using. Some strong filters don't allow the camera to focus and it's not necessarily a lens or camera issue. For example, in some cases I cannot autofocus some of my lenses with my 10-stop ND filter and have to focus first, then attach the filter, and then shoot especially doing some long exposures -- in low light -- say during sunrise/sunset where the scene appears completely dark to the camera.

Click to expand...

Well, I have used 3/6/10-stop ND filters. Obviously 10-stops will be a problem with autofocus but I feel that on occasions even 3-stops proved troublesome on a number of occasions in fading light (usually shoot seascapes around sunset time).

I feel that the Nikon glass seems to handles the autofocusing with 3/6-stop ND filters better than the Viltrox. Having said that I have not updated the FW on the Viltrox and at the end of the day it's not so hard to autofocus on the subject, click over to manual focus and place the ND filter on (easy with a magnetic filter system) and take the shot.

Click to expand...

If you would use back button focusing you didn't even have to switch between AF/MF. First focus with back button, pop filter then take the shot with the shutter button. That's one of the many advantages of back button focusing method. It takes time to get used to though...

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LightsAndTones said:

George Paulides said:

sirhawkeye64 said:

What stop level of filter are you using. Some strong filters don't allow the camera to focus and it's not necessarily a lens or camera issue. For example, in some cases I cannot autofocus some of my lenses with my 10-stop ND filter and have to focus first, then attach the filter, and then shoot especially doing some long exposures -- in low light -- say during sunrise/sunset where the scene appears completely dark to the camera.

Click to expand...

Well, I have used 3/6/10-stop ND filters. Obviously 10-stops will be a problem with autofocus but I feel that on occasions even 3-stops proved troublesome on a number of occasions in fading light (usually shoot seascapes around sunset time).

I feel that the Nikon glass seems to handles the autofocusing with 3/6-stop ND filters better than the Viltrox. Having said that I have not updated the FW on the Viltrox and at the end of the day it's not so hard to autofocus on the subject, click over to manual focus and place the ND filter on (easy with a magnetic filter system) and take the shot.

Click to expand...

If you would use back button focusing you didn't even have to switch between AF/MF. First focus with back button, pop filter then take the shot with the shutter button. That's one of the many advantages of back button focusing method. It takes time to get used to though...

Click to expand...

Good tip, thanks.