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Old October 7th, 2015, 11:37 AM   #1
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JVC LS300 Plus Canon IS Lens Question(s)

Greetings LS300 Shooters -- throwing this out there as I had an issue using long Canon telephoto coupled to my LS300.

Had lens mounted shooting some backyard stuff. IS was "activated" on lens (using MetaBones MK IV EF). When I turned off the Vid-cam - I heard a loud CLUNK - most definitely coming from rear of Canon lens. With lens unmounted from vid-cam - there was distinct rattle coming from rear of lens. Suspected it was the IS element assembly - uncoupled from wherever it couples too.

I mounted lens onto Canon 7D MKII - turned cam body on - IS was engaged on lens - and heard another "clunk" from rear of lens - took some shots with that body/lens combo - and all looks OK. This never happened with Canon wide zooms attached. Anybody out there ever experience similar incident ? Should IS on lens be disengaged "before" shutting down LS300 ? Anybody had damage to Canon IS lens in similar situation ? What firmware version on Metabones EF IV and/or LS300 do you have ? ANY feedback would be appreciated !

Overall - is it worth it to upgrade LS300 to latest firmware -- or too many issues generated ? I use Shogun as monitor as JVC lcd/viewfinder really is a joke !
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Old October 7th, 2015, 02:57 PM   #2
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Re: JVC LS300 Plus Canon IS Lens Question(s)

Strange because the IS on my EF-S 17-55 doesn't seem to work at all - I haven't worried about it because I prefer the Olympus 12-40 (which doesn't have IS) - but I had assumed the Metabones didn't pass that info through to the camera.

I'd be interested in hearing others experiences with the Metabones.
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Old October 7th, 2015, 03:36 PM   #3
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Re: JVC LS300 Plus Canon IS Lens Question(s)

A clunk is not a good sign, this should not be happening on either camera.
The only Canon lens I have is the 17-55mm also - switching the IS on/off produces a very quiet sound but no clunk.
The IS on my 17-55m does seem to work.

I would have no hesitation about upgrading to V2 - there some minor issues but nothing is taken away. The JLog (which I wasn't planning to use) is actually very nice - just dropping the blacks in post by 10-15% produces natural looking pics.
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Old October 8th, 2015, 11:39 AM   #4
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Re: JVC LS300 Plus Canon IS Lens Question(s)

A clunk is not a good thing - I can't see how it could have been caused by the camera though - it couldn't have overpowered the IS, or misinserted a gear like a starter on a car... That's a weird one for sure.
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