December 5, 2016 at 7:17AM


About to buy BMPCC... Which mount Metabones do you think I should buy ?

Hi guys !

I'm about to sell my A7s to buy a BMPCC (mostly for RAW and seing something new).

I was thinking about buying a Sigma 18-35mm 1.8 which is pretty great with the crop factor and very sharp (I'm not a huge sharpness addict but as BMPCC is performant this way...)

My question is : Metabones Speedbooster or any other brand ? I saw "ULTRA 0.71x" Speedbooster. Can someone confirms that it gives me a 1,44x crop factor ?

Secondly, I was wondering : EF mount or Nikon G ? Is there any difference ?
I've used Canon a lot sinces I got EOS 60D for 3 years... I also own a Zeiss 50mm 1.7 C/Y which could be adapted on the EF Metabones.

Can't wait to hear from your guys


Dude, I would seriously keep the A7s and maybe tack on an external recorder if you want more flexibility. The terrible rolling shutter, aliasing and weak color aren't worth raw capability. You can fix the alias distortion by buying an after-market OLPF ($400) but the only way to avoid the other problems is to not allow fast movement on-cam and take reference photos with another camera so you can spend hours trying to make it match in post. If you want a GOOD raw camera, you'll have to save up for an Alexa, Red or wait in line for a used Digital Bolex or Ikonoskop. Cheap cameras are cheap because they cut corners.

If you want sharp, stick with prime lenses if you can. I've never used a Speedbooster so I can't comment. As for the mount, Nikon is not as popular so there's less selection out there but they tend to be less expensive on the used market.

December 5, 2016 at 11:04AM, Edited December 5, 11:07AM


Actually I'm not a huge fan of A7s. It's all about sacrifices, as you said "Cheap cameras are cheap because they cut corners."

The main problem with the A7s is the codec. It's terrible to have 8bit 4:2:0... And external recorder only makes it 8b 422... I've tried both and BMPCC is way much better to me (but once again A7s is a great camera, I love the 35mm sensor, high ISO performance...).

BMPCC is also a great camera, but the Super 16 sensor is ridiculous, the ISO are terrible... But it suits me better :-)

About Metabones, it's strange, there's a Metabones Speedbooster especially made for BMPCC and it doesn't exist in EF mount anymore...

Thomas Hauser

December 5, 2016 at 2:29PM

Oups... big mistake.

Metabones speedbooster EF-BMPCC are actually still on the market... I'll go for it ;)

Thomas Hauser

December 5, 2016 at 2:32PM

Stephen - no business of mine to poke my nose in really, but I can't help noticing three or four posts where you're quick to write-off the BMPCC or BMCC.

There are all kinds of issues with these cameras, but I can't see why you feel that moire is notoriously prominent compared to similiarly priced options. Or why the limitations of the camera are deal-breakers, given the great work produced on them. The colour capabilities are really not weak, certainly not in the context of the kind of alternatives people are asking about.

Each to their own - my BMPCC certainly winds me up on various shoots. But the image quality is always stellar. is Are you an undercover agent for the Anti-BMD League? ; )

Ben Drissa

December 6, 2016 at 7:38AM

emmm...rolling shutter on bmpcc is almost twice as fast comparing to a7s, calling black magic color terrible is kinda stupid, a7s can't touch it, and a7s it breaks in post way easier than bmpcc raw, moire yes, it rarely creeps in, but when it does, my god it's terrible(olpf is a must), thou as a black magic user, for a simple work imho a7s is still better, because it is way more versatile camera.


December 13, 2016 at 7:53AM

I also think i would not do it although i think the bmpcc is a great camera.
If you get a 4k recorder, you can convert your 4k to a 444 10bit(ish) 1080p.
You will also have 4 times finer noise.
That said, i got the olpf for my bmpcc because moiree can be a matter of can-i-use-the-shot-or-not/ life and death and i had some evil agressive rainbows lurking around, waiting to eat my picture.

Metabones makes sense, because at some point you might want IS lenses.
Also an option would be the LensRegain adapter if youre going the EF route.
They seem to look great, have just a factor of 1,75 but a serious focus addon:

December 8, 2016 at 8:28AM

just a filmmaker

Mr Johnston;
I actually consider all cameras with those issues to be insufficient for professional video work. I'm not sure how having larger sensors made alaising and rolling shutter etc. OK. I pick on BM cameras because people fail to realize that they are run of the mill mirrorless cameras with raw capability. Sure, people have made good movies on them, like people have made good movies on GH2s or iPhones, but nobody thinks those are professional tools.

I've seen people spend hours grading BM video, cutting out windows with motion tracking to blend aliasing or coloring somebody's face so that it's skin-toned without ruining the white balance. I've dealt with that enough to realize I have better ways to waste time. BMs aren't any cheaper than the competition when you account for all the add-ons and mods you need; and like other mirrorless cameras, you still can't allow fast movement in your movies. At least with something like an A7s or GH3, you can just edit without doing clean-up work.

Finally, I've used Sony, Canon, Panasonic and JVC alike since the late 90s. Not a one of them ever failed me. I've had multiple BMs crash mid-shoot, scramble SSDs or even spontaneously combust in one case, all within a year of purchase. That alone would put an otherwise excellent camera into the "do no touch" pile for me. Reliability is the #1 importance.

December 8, 2016 at 9:58AM, Edited December 8, 10:04AM


Bad luck - that would certainly put me off.

But luckily, I've had no reliability issues with my BMPCC. It has flimsy connections, a crappy screen and the battery is a joke... it clearly does't meet the traditional industry standards in terms of connectivity, durability, etc. But I'm not working on set or in a broadcast studio. Neither will many of the new shooters who ask about this camera here.

I can't see the issues with colour that you mention. From a current project, this is straight out of the camera, then with a single LUT applied. Took seconds.

I'm no seasoned expert and I'm not delivering work for high-end clients, but I can't see any obvious problems. Neither can clients, who are very happy with the images.

I'd just like people to hear a bit more balance about the image from these cameras. No need to love them, but no need to single them out as delivering a uniquely poor image either.

Ben Drissa

December 9, 2016 at 5:35AM

You can complain about a lot of issues with the BMPCC (or BMCC). Battery, poor screen especially in day light, not the most efficient controls, but image quality?

That's just a joke.

If you think there is any camera on the market that can produce equivalent image quality for the same price-point, you are fooling yourself. And you can talk about all the accessories and whatnot you need for it, but I've gone out with just a BMPCC, a lens, an SD card, and a tripod, and made footage that would make someone with GH3 weep. Sure, it was tough to focus in the daylight, but I'd put a black towel over my head to cut the light, and it wasn't so difficult.

I paid $800 for my BMPCC which included tons of accessories.

Literally a joke if you don't understand why they are so highly regarded for their image quality at that price point. "just a run of the mill mirrorless camera with RAW" is naive.

Matt Williams

December 11, 2016 at 4:18AM

Congrats on trying out the BMPCC. I'm also in the market for the Metabones Speedbooster for the Pocket Camera. I researched both EF and Nikon and I'm going with Nikon. I like the built in lever that grabs the aperture on the G lenses. The EF one isn't powered without a little micro USB thingy... that seems like one more thing to rely one. NOPE!!!! Going with Nikon.

December 8, 2016 at 1:51PM

Dennis Nagelkirk
Write. Film. Edit. Draw. Paint.

Had three personal blackmagic cameras break, and have heard other stories from guys who owned some. Great idea, horrible quality control, crap load of issues. I highly recommend sticking to the A7S, or going another route

December 10, 2016 at 12:47AM


If you go for the BMPCC I would suggest the BMPCC specific Speedbooster because the .58 version gives you a wider field of view than the .72 version and also allows more light through (1 and 3/4 stops I believe). The normal crop on the camera is 2.88x so with the .58 BMPCC Speedbooster you are looking at a crop of 1.6704x. I have the Nikon version and it works great. If you are serious about color grading, the Pocket Camera can deliver some awesome images, it just takes a bit longer in post. If you are already invested in Canon glass you should consider the EF version....the only benefit there in my mind is the ability to activate IS. For handheld work I simply use native M43 glass which is sharp and has decent IS. Another thing you need to know before buying the BMPCC is the problem it has with IR pollution - this has screwed me over far more times than the occasional moire. If you are using ND filters, outside in bright light, you will notice that the shadows are tinged with an ugly red which is nearly impossible to color correct. There are several solutions including filters that fit on the end of your lenses or IR cut filters which go directly over the sensor. The IR cut filters are not cheap, but I would seriously consider getting one if you plan to shoot a lot in bright, natural light. I also agree that you might want to hang onto the A7s if you can afford to do so, but I think it is worth giving the BMPCC a try. When everything is set just right the images you can produce with teh BMPCC are spectacular. One last cannot set a custom white balance by shooting a white card with the pocket camera. This is, in my opinion, the biggest shortcoming of the Pocket Camera. Good luck with your decision, I hope this info is helpful.

December 10, 2016 at 6:21AM, Edited December 10, 6:21AM

Myke Scaffidi

I Shoot Bmpcc and it works well... I dont shoot with speed boosters though so i cant help you with that... I shoot with anything but i really despise sony's color. And the BMPCC contrary to other beliefs, is a professional film camera. If you can get one get it and have fun, just know that its not the low light monster that the A7S is... just be aware that you giving that up.

December 10, 2016 at 8:27PM

Wentworth Kelly
DP/Colorist/Drone Op

Hi thanks a lot !

Actually I know it's not a lowlight monster, but I don't care. I've never really used the extreme low light performances of the A7s

Thomas Hauser

December 11, 2016 at 7:41AM

I have a Nikon G for my BMPCC. Nikon glass is (and always has been) truly great. Go for that.

Plus, I do believe it's a few hundred cheaper than the Canon EF speedbooster.

Also, ignore Stephen. Cameras like the A7s are great for many things - video included - as well as, of course, photography (the main reason they were made), but in pure image quality (and not battery life or all this other stuff that in the end doesn't show up on screen), the more affordable BMPCC blasts them out of the water.

There are many people who are bitter toward Blackmagic because, admittedly, Blackmagic has issues with things (like battery life, ergonomics, etc.). But, as one of the fellows who runs BM said "what we try to do is deliver a lot of camera for a little money. and we deliver a whole lot of camera."

Sometimes that comes at the expense of some other things. It's like that old saying of fast, cheap, and quality but you can only have two. BM chose cheap and quality because that's their market.

December 11, 2016 at 4:26AM

Matt Williams
Director of Photography

As a guy that made the reverse decision, I will say I do no regret selling my BMPCC.

When I bought the BMPCC I was blinded by the fact that I got ProRes/RAW available in a small package and everybody talked about the image quality.

Well, after having used it for 2 years, I found that all the features are also the biggest downsides. Memory cards are expensive, you need so many batteries or external solutions that the small formfactor is not so small anymore. The on camera monitor is so bad, that you will need a proper(and expensive) secondary monitor to check everything is at it should be when shooting outside(and even when inside).
Fixed Pattern Noise is a huge problem that you cannot fix. Moire will ruin many of your shots(you can get an OLPF for it now, but its expensive) and the general flexibillity is very bad(you go above 800 iso, image becomes unusable).

The image quality is good, but I would say downsampled 4K footage from my A7S II is better, and this is using the same lenses(85mm samyang prime, 18-35mm Sigma, 70-200mm Canon L)

Now, one thing that we can agree on is that the flexibillity in post is much higher because of 10bit ProRes or 12 bit RAW. But I would argue that you should spend more time actually making sure that what you record is what you want, instead of relying on post to fix mistakes.

Many people argue that Sony colors are not as good, and I agree, however having tried out the new EOSHD picture profile, I really think it fixes a lot of the problems I was having with skintones and greens/blues.

I do not regret changing out my camera system. My A7S II sees so much more use than the BMPCC because its so much easier to use.

December 13, 2016 at 1:20AM

Casper Thomsen
DoP/VFX Artist

why not buy a bmmcc + monitor? way better build quality, way better battery life, 60fps, slightly better image quality(not much).

December 13, 2016 at 7:55AM


This is a good suggestion. Slightly more set up but it's worth it for the 60P

Logan Fish

December 15, 2016 at 2:58AM

Hey man, great choice! Once you start working with native 10bit 422 and raw footage, you'll find it very hard to work with the lesser codecs. You have to get the Metabones SB specific to the Pocket (Nikon or Canon depending on your lens collection) and try and get the newer T model. Yeah this camera has it's annoying quirks, the biggest of which is the battery. But there are solutions to meet most needs for this. Also if you use a JuicedLink or similar preamp, the audio direct to camera is good.

Good luck and happy shooting :)

December 15, 2016 at 2:57AM

Logan Fish
Video Journalist

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