Iris control issue

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John MacFadyen

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Iris control issue

PostWed Nov 07, 2012 8:57 am

Just got my camera today, and I'm having some issues with iris control on a Canon 24-70L. I can set the Iris on this lens without any issues on my dslrs but on the blackmagic it won't adjust at all, but my other lenes are working fine. Just wondering if anyone has had any issues with this lens and the BMC?
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Costa Louvieris

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Re: Iris control issue

PostWed Nov 07, 2012 9:00 am

You will find that only a handful of people have the camera... you are actually holding gold dust in your hands right now! So sorry, I can't help but I know of maybe two other people here that can, one of them is John Brawley.
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Dave Chin

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Re: Iris control issue

PostWed Nov 07, 2012 5:57 pm

i just tried my 24-70L (i assume you mean the mk1 version). using the ff and rw buttons the iris does adjust.
what kind of behaviour are you seeing (or not seeing)?
currently enjoying my BMPCC & BMCC in Singapore.
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John MacFadyen

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Re: Iris control issue

PostWed Nov 07, 2012 6:27 pm

I'm not getting any response from either button with this lens. To adjust the iris at the moment I have to chuck it on to my dslr, change the apature in there and put it back on the bmc. Not very convenient.
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Dave Chin

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Re: Iris control issue

PostWed Nov 07, 2012 6:46 pm

omg i take it back - i am seeing the exact same thing. i was sure it was working a minute ago!! no change, no 'click' now to make sure im not crazy i'm going to see if i can get it to work....
currently enjoying my BMPCC & BMCC in Singapore.
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Dave Chin

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Re: Iris control issue

PostWed Nov 07, 2012 6:50 pm

also, double tap the iris button doesn't do anything either...
currently enjoying my BMPCC & BMCC in Singapore.
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Christian Schmeer

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Re: Iris control issue

PostWed Nov 07, 2012 6:53 pm

Oh no... I hope this is not a widespread issue and is easily (firmware) fixable :roll:
Christian Schmeer - DP / Colourist
www.christianschmeer.com
www.vimeo.com/christianschmeer
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John MacFadyen

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Re: Iris control issue

PostWed Nov 07, 2012 6:56 pm

Glad I'm not the only one then, means its probably not my lens thats broken!
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Ram Prakash

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Re: Iris control issue

PostWed Nov 07, 2012 10:44 pm

John MacFadyen wrote:Just got my camera today


Congratulations!
Cheers!
Ram Prakash
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Dave Chin

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Re: Iris control issue

PostThu Nov 08, 2012 12:13 am

John - i've tested most of my lenses now and i'll test the rest later but i'm not seeing that behaviour elsewhere, yet...
currently enjoying my BMPCC & BMCC in Singapore.
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jasonxinzhou

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Re: Iris control issue

PostFri Nov 09, 2012 4:07 am

dude, you are not alone


Marco Solorio of OneRiver Media posted at his blog as follow:

Unfortunately at this time (Cinema Camera version 1.1), not all Canon lenses work with the EF model. I have quite a large collection of Canon L lenses and all but two work with the Cinema Camera, which includes the 85mm f/1.2L (probably Canon’s sharpest lens they’ve ever made) and the 35mm f/1.4L. Because the 85mm focuses electronically (I’ve always hated that feature, even on my Canon DSLRs), it requires a protocol that BMD hasn’t figured out yet (I’m assuming Canon isn’t going to just hand that kind of information out). So with the 85mm, there’s no focus, and no aperture control at this time. With the 35mm, no aperture control at this time (but focus works fine).

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