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Explaining The Speed Booster Test pt.1

I received a few emails about the video recently published comparing a Pixco v BMCC Metabones so I wanted to explain it a little further. I chose the Sigma 18-35mm 1.8 APS-C lens because that seems to be the most widely used zoom ef lens for mft systems due to sharpness and speed (lowlight). 

So why choose a generic Pixco .71x 1 stop to compare against the BMCC Metabones .64x 1 1/3 stop? Because many forums have been debating if the old BMCC Metabones could be used on the BMPCC4k and many claim that it works perfectly fine. The Pixco was used because it is insanely low priced and I already owned it. I also already own the BMCC Metabones.

So then, why the vignetting and distortion on the BMCC Metabones? Well the lens is APS-C and the BMCC Metabones is a .64x which is designed for a smaller sensor than the one on the BMPCC4k. Therefore it vignettes and distorts. Although after corresponding with Metabones they said the BMCC Metabones .64x is the same crop as the XL but not sure “if the rear element will tip the shutter/filter” of the BMPCC4k. The XL .64x and the Ultra .71x are for full frame lenses while the Ultra .71x should be used for the APS-C. There is nothing wrong with the design and function of the BMCC Metabones it was just designed for a smaller sensor and will crop and distort with an APS-C lens on the BMPCC4k

And why is the Pixco slightly “darker” than the BMCC Metabones? It is due to the fact that the BMCC Metabones is 1 1/3 stops and the Pixco is 1 stop which causes the Metabones to allow 1/3 more stops of light in. Therefore making the image slightly lighter and more pixel/color data is obtained by the sensor. 

Choosing the right focal reducer depends on what type of glass you own. 

Keep the magic alive, 

MT
editor/founder

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BMPCC4k Speedbooster pt. 1 Generic v BMCC Metabones

Make sure to subscribe to the first tech blog dedicated to the BMPCC4k.

In this video we see if you can use your old BMCC Metabones speedbooster .64x/ 1 1/3 stop and we compare it to the generic Pixco .71x 1 stop, both are ef-mft. We paired them together with the Sigma 18-35mm 1.8. All the settings are the same (4k dci, 24 fps, raw 4:1, film, 400 iso). 

We also will be comparing the generic Pixco speedbooster with the Viltrox ef-m2 in a few weeks. So subscribe and follow us!

Thoughts: I would not use the BMCC Metabones at all due to the distortion and vignetting. Even at 24 mm the vignetting is pronounced. While the generic speedbooster is slightly warmer and has a little less light it can easily be adjusted by bumping up the iso/exposure and in post doing a little more color grading. Don’t forget the metabones has 1/3 stops more. The generic looks sharp and definitely a great tool that I am sure can be found relatively cheap. I think I paid $89 when I bought this a few years ago for my GH4. The only downside of the generic is that there is no iris control. I look forward to testing it against the Viltrox ef-m2 in a few weeks. 

The advantage of using Davinci Resolve to unlock the true pixel data cannot be understated. For years I have been using Premiere Pro but will be using Resolve 15 from now on. Did I mention that it can even play Raw files! Good luck trying to even import them into PP. Anyways, I hope this may help you out in your quest for resources. 

Keep the magic alive, 

MT
editor/founder

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Who Is Shipping The Camera!?

With so much anxiety, nervousness and anger of when the BMPCC4k will ship and preorders dating from April 2018 it seems there is a lot of mixed messages and possible misinformation.  Some big retailers are now saying December 2018 for April orders and January/February for orders placed today or recently. So what’s the big delay?

Image result for b&h photo
Image result for adorama images

I do not know of anyone that has publicly stated how many preorders were made from the date of announcement, April 9, 2018, to present but some estimate 10,000+. I do not think that sensors and many of the components are made immediately much less the QC process. You also must understand that BMD may be dependent on vendors which I am sure do not stop everything to ramp up production just because they need it. We will inquire from BMD about the manufacturing process and the time to make each camera. I hope they provide information not necessarily ship dates.

Some ask, “why are the big box stores like B&H and Adorama not shipping large quantities and smaller retailers are shipping more?” Well it’s all relative. If you think about it B&H must have orders in the thousands were as smaller retailers may have 10-20. So if you do the math if the smaller store ordered 25 on the first day they might be able to fulfill their orders and if they have any left over they can put them on out there. Which has happened in a few instances. So then, many people think that the big stores didn’t get enough and the smaller ones did which we do not believe is the case.

But the fact that many big box stores have been giving out conflicting statements on ship dates to customers fuels theories of why their order has not shipped.  The market demand may have been underestimated or there may be production delays. But that is pure speculation since no one has issued an official statement. 

It’s safe to say watching videos and downloading clips of this amazing camera only intensifies the urgency. Let’s not mention the notorious “unboxing videos”! So now that you don’t have a clue and already sent the vendor emails, called, and chatted what do you do now? If you believe the camera is the game changer we have all been waiting for then you learn as much as you can from blogs, Youtube, Vimeo that way when your camera arrives you already have filled the noggin with more than delayed gratification. 

Keep the magic alive,

MT

editor/founder

If you want to submit information/videos (links)/news/tips for our blog please email us: info@BMPCC4k.tech 

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Welcome BMPCC4k Users!

This is our first post and we are excited to launch this user resource blog for all BMPCC4k users and/or potential users.

This blog is dedicated to providing the latest news, tips, videos and links about the BMPCC4k. We are not only going to publish official news but you can also submit for posting on our blog. This blog is a community of users looking for answers from other users or experienced hobbyist and professionals alike. Elitism is not allowed on this blog so save it!

If you want to submit information/videos (links)/news/tips for our blog please email us: 

info@BMPCC4k.tech

Stay tuned as we begin to gather information and will provide updates!

Thank you BMD for making the BMPCC4k a true game changer!

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