Buying Lens For BMCC

[Bill Bruner]

Hi Ali – as with the Super 35 sensor in the Canon C300, some crop sensor EF-S lenses may cause vignetting with the Super 35 Blackmagic Production Camera 4K. To quote Canon’s warning on their Cinema EOS FAQ page regarding the Canon C300, “there may be some visible vignetting with certain EF-S lenses”.

I would buy full frame glass, if I were you.

Good luck!

Bill
Hybrid Camera Revolution

[Ali Quintana]

Thanks for the advice,

Like the L serie canon is full frame? full frame will work fine on my 2.5K BMCC as well? because thats what I have now, untill the 4k is released…

[Richard Martz]

While you can buy compatible EF or ZE lenses for both cameras, the BIG issue will be achieving the desired composition at a given subject distance. And for that you usually want a variety of lenses of different focal lengths to give you flexibility when you are shooting. The BMCC with it’s APS-C sensor really benefits from shorter lenses. The 4K Production camera..not so much.

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[Ali Quintana]

Thank you.

But will a full frame ef lens be of less quality on the 2.5k, then on the 4k?

I have the 2.5K but plan to buy the 4k when its released, so I am thinking of buying full frame lenses for my 2.5 k so that I can also use them later on the 4k cam.

But only if the full frame ef lenses give the same quality on the 2.5 k as cropped lensses. I mean if there is no disatvantage.

[Richard Martz]

As I understand it EF-S lenses don’t work on FUll frame sensors. Full frame EF series lenses should be downwardly compatible with APS-C sensors that are in the Blackmagic 2K cinema camera.

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[Ali Quintana]

The 2.5 k will only use the center of the full frame lens as the 4k will use the full lens.

So if u would have both cams at the same shoot with the same full frame lens the 2.5 k would have to stand much further away then the 4k to get the same image.

So they will both work, but will the full frame lens on the 2.5 k give any other disatvantages then having to stand further away? Like more grain or more noise, or less sharp the cropped lenses?

[Richard Martz]

Any difference in quality should be indistinguishable when both are using full frame lenses. But you probably will need a shorter lens with the 2K Cinema Camera.

Richard Martz
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Sincerely,
Richard Martz

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8′ jib arm
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Grip Truck/trailer
Location video monitoring
Door and hood mounts
Lots of other Fun Stuff!

[Ali Quintana]

Thank you, thats the answer I was looking for… and yes, short lens will be in my wishlist for sure.

The first lens I plan getting the the full frame tamron 24-70mm. looks like a sweet lens for that price. Great thing is I will be able to use it on full frame cams as well.

Next I need to look for a 14 mm or so for the wide angles.

[Richard Martz]

I’ve been pretty happy with the Sigma 17-70 F2.8 It works for most of what I shoot except extreme telephoto and extreme wide angle. .

Sincerely,
Richard Martz

MagicMartz Media
Atlanta, GA

FCP 7
FCP X
Blackmagic Cinema Camera
ADOBE CREATIVE SUITE CC
Premiere Pro
DaVinci Resolve 9.0
MAC 8 core
After Effects
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Illustrator
Sony HD Cameras
24′ Camera Crane with Motorhead
8′ jib arm
20K watts of lighting
Multitrack audio
Teleprompters
Grip Truck/trailer
Location video monitoring
Door and hood mounts
Lots of other Fun Stuff!

[Sumesh Senan]

Hi Ali

i own a series of L series Canon lenses and am just planning to buy a BMCC for some production purpose. Few months ago ,i was considering the SONY cameras and was told that i need to again invest in IRIS CONTROL gear when using canon lenses with sony…does that problem exist in BMCC ? Please do share if you know anything about this

thanks
Sumesh