Tokina Issue

[Arnold F.]

I have a normal Tokina 11-16 and lately when mounted the aperture is not showing up. Shutdowns and taking it off and putting it on again have had no effect. Has anyone else seen this?

 

[Michael Ou]

Check the focus ring and see whether its pushed in or pulled out, that may help.

 

[Arnold F.]

Same problem in both positions. I got the camera to display aperture once this past weekend by engaging very, very slowly.

 

[ericyoung]

Does it work OK on a DSLR?

If not, check the contacts on the lens.

If it does, try a different lens on the Scarlet.

If that has the same issue, the problem is the Scarlet body or mount.

 

[Jason Comparetto]

Yes check the contacts on the lens. Some folks use alcohol and a q-tip. Others suggest using a pencil eraser.

 

[Jason Honeycutt]

I have a normal Tokina 11-16 and lately when mounted the aperture is not showing up. Shutdowns and taking it off and putting it on again have had no effect. Has anyone else seen this?

I have a 28-70 AT-X Pro II and the Scarlet freaks out sometimes where it goes into this 'iris close, iris open' mode, doing it two or three times. It usually only happens if there's a lighting change where it gets too bright.

At first I thought it was because I didn't lock my f-stop to F/22 then dial it in via the monitor but even then, it still does this. It's really odd. I have a 2-something firmware, though, need to update and see if that'll solve anything.

The lens works perfectly in video mode on my Nikon D7000.

 

[Domenic Barbero]

this happened to me once. check the pin contacts inside of the canon mount. Sometimes they stick down.