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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Need help diagnosing weird stutter issue

MatthewThompson

MatthewThompson

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I've owned a Scarlet MX for a almost 3 years now, i LOVE IT, always have... Been very lucky to never have any issues that require service or handing it over to RED. Even my 4 year old monitor cables work fine!:hurray:

So I'm a bit stumped here. Yesterday I was at camera shop testing a slider move to make sure 5ft of track would be enough for my shoot needs. I was using my Scarlet MX, up to date firmware, Canon Mount, with a Canon 100mm Macro all on a super smooth Dana Dolly fully locked down. When I slid the camera I noticed a bizarre stutter on the monitor. I rolled a clip and on playback same issue. First thought was the IS on the lens, I tried it ON and OFF, same issue. I tried two other Canon lenses, same issue. I even had the rental house pull another scarlet and same issue again!

Here's the clip, ignore the strobe effect, a light was flickering in the room and turning it off did not effect the stutter

https://vimeo.com/149765540
password: TEST

The only thing I think causing this would be the IS on Canon lenses but I've also never had this problem before. Even last week I was using a Cooke 18-100 on the same Dana Dolly and ZERO issues, which makes me go back to the IS.

Any thoughts/ideas would be helpful, very worried about walking on set next week without this issue solved. If no takers, I'll probably bring on a PL 100mm prime as backup

thank you!
 
Looks odd, yes if you got lens stabilising on then that might be the issue. an 3rd could possibly tell more. Or do these with different lenses and first try without lens electronics turned off...
 
I've tried two cameras and three lenses, IS on and off. I also tried handholding and no issue at all. Very strange!
 
I'd say isolate the mount and lenses first - and then maybe the firmware update (in relation to Canon mount and Canon lenses).

If a (PL) Cooke 18-100 didn't do this on your Scarlet, but all the lenses you're trying now are Canon and electronic... it sounds like it could be a firmware related issue with these lenses or mount/lenses related (?).

The only surefire way to check would be to either roll back the firmware or get an non electronic lens on there and test that.
 
Will try a firmware roll back but the other Scarlet tested had the previous firmware and same issue. I've also used this lens many many times before and never had this problem
 
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