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Canon Cinema EOS Camera Systems
For all Canon Cinema EOS models: C700 / C300 Mk. II / C200 / C100 Mk II and EF / PL lenses.

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Old August 22nd, 2015, 12:31 PM   #1
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Strain on the C300 EF- mount

Hi.
I have a shoot coming up next Saturday and I`ll be using the C300 and Canon L series 28- 300 lens. Does anyone know how much strain you can put on the EF mount on the camera? Would I need a support system for this lens?
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Old August 22nd, 2015, 02:10 PM   #2
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Re: Strain on the C300 EF- mount

I regularly use the 70-200 and canon's cinema primes on the camera with no support all the time. These are a little less than a pound lighter than the 28-300. If you are worried about damaging the mount, I don't think that's a problem the ef mount is designed to support lenses heavier than this (for still camera purposes). If you are worried about stability, and you should be, then a rod-mounted support is probably recommended.
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Old August 23rd, 2015, 11:18 AM   #3
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Re: Strain on the C300 EF- mount

I have shot with EF 70-200 f2.8 L IS II USM lens mated with EF 2xII TC and used it without any rigs. Also have used the EF 100-400 lens. Those are similar weights and so the EF 28-300 lens won't be a problem.
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Old August 23rd, 2015, 12:24 PM   #4
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Re: Strain on the C300 EF- mount

Hi Barry and Sabyasachi.
Thank you both for your replies. As a documentarian I like to travel as light as possible with as little extra weight as possible, so this is encouraging.
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