Scarlet-x backfocus drifting out

[Ryan Hamblin]

Has anyone experienced their back focus drifting out overtime?

 

[Tim Bradley]

I would suggest this may be a lens issue rather than a camera issue.

 

[ericyoung]

No back focus issues noticed with my Epic-X which has the same mechanism.

Are you going between temperature extremes - very cold to very hot?

Is your lens mount clean and firmly tightened on the body (not overtightened though! 22 in-lbs max).

Does it only affect one lens, or a whole set?

 

[Björn Benckert]

Ours stays very much the same... I almost regret that I bought a RED focus as I only had use for it once / The first time I used it

 

[Ryan Hamblin]

No extremes as of late. I'll keep a closer eye on temperature though. It was affecting a shoe set

 

[ericyoung]

Were you using a zoom lens? Not all zooms are par focal.

 

[Ryan Hamblin]

Primes. First time this has happened in years

 

[Mark Toia]

Haven't touched any of our cameras back focus since the day we bought them.

 

[Ryan Hamblin]

I hadn't either till 2 days ago and it was really out

 

[Björn Benckert]

Haven't touched any of our cameras back focus since the day we bought them.

I checked ours when we got it and it was out. And I checked with the big rental house here in town and they told me all their epic MX was set wrong when they received them. So to say the least not all cameras are trimmed in when they leave the red factory.

 

[Jeffery Anderson]

Bjorn,

Are you saying that, 'with a PL mount', the flange distance from the mount, to the sensor was off?

just curious, how did you adjust it?