Using the Panasonic GH4 with Canon glass?

5 years 7 months ago #394546 by Tony Bisson
I'm really putting some thought into this Panasonic GH4, mainly because I want the 4k video.  What I don't want to do is have to go out and buy all new lenses.  How is the workflow and quality using Canon glass on the GH4?  Is there any image quality compromised when using NON Panasonic/Lumix glass?

Thank you


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5 years 7 months ago #394565 by NicoIa
I am in a similar situation: my main camera is a 6D and I use a converted GX1 for (most of) my IR work. Canon-to-MFT adapter are of three kinds:
a) completely manual: basically a piece of plastic/metal that allows you to attach the lens to the body; pros: very cheap; cons: no control at all on the aperture;
b) manual with built-in iris: as above, but the adapter has an iris that can be used to regulate the aperture; pros: quite cheap; cons: the blades are not were they are supposed to be, therefore you are likely to have flares and other issues. Also, the aperture scale is not in f-numbers so you have to guess somehow;
c) www.metabones.com/products/details/MB_SPEF-BMPCC-BM1 this guy is capable to control the aperture and it is also a speed booster, that is it increases the maximum aperture of your lens. Pros: in principle, solves all your issues; reviews are good; Cons: very expensive!

I use method a). When I want to stop down my lens, I have to mount it on my Canon body, set the aperture, press the DOF preview button and unmount the lens without releasing the DOF preview button. As you can imagine it is not very straightforward, but in my case I use almost exclusively my wideangle L lens on the GX1, so it is doable. If you are planning to use all the lenses you have, it may make sense to buy the metabones but I am not sure about the effect on IQ (it has a glass element). Ideally I would try to rent the GH4 and the metabones before buying anything.

Hope this helps.


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5 years 7 months ago #394768 by Robert Chen
I'd be curious if when recording in 4k and using non native glass if that effects the video quality:?

Nikon D300 24-70mm f2.8
70-200mm f2.8
50mm f1.4 & 50mm f1.8
105mm f2.8
2 SB800

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5 years 7 months ago #394788 by NicoIa

Robert Chen wrote: I'd be curious if when recording in 4k and using non native glass if that effects the video quality:?


Why do you believe that would happen?


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5 years 7 months ago #394846 by Dragonflies
I just bought this camera and bringing with me to America in our upcoming Oct trip.  I bought 2 lenses, the Panasonic 35mm f/2.8 and the 14-140mm f/4-5.8.  If you haven't seen it there is a good interview on this site where this question comes up.  I watched it last week right before ordering.  Give me a min, I need to find the link. 


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5 years 7 months ago #394857 by Dragonflies
Found it!  I had to search my sent box because after watching I forwarded this link to a friend who is also looking for a 4k camera.

http://www.photographytalk.com/learnexplore60  


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5 years 7 months ago #395257 by One Creative Girl

Dragonflies wrote: Found it!  I had to search my sent box because after watching I forwarded this link to a friend who is also looking for a 4k camera.

http://www.photographytalk.com/learnexplore60  



Santa is supposed to deliver this to me this year


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5 years 7 months ago #395267 by Tony Imaging

Robert Chen wrote: I'd be curious if when recording in 4k and using non native glass if that effects the video quality:?


Not at all, you just don't get the auto focus 


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5 years 7 months ago #395321 by Tim Dordeck


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