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😂I assure you it was not my intention. Life was pretty crazy in the time following this video. The good news is, I've been thinking about this channel quite often lately and have a few ideas for future videos.

@@film24fps I hope everything is going well. I’m happy to hear that you are thinking of making a return to TH-cam and subscribed with post notifications for when ever you get back.

🙏🏼 Thank you for your kind words! Definitely a needed pick me up! 😃 Honestly, I spread myself a bit thin and this channel got knocked down the priority list because of it. I've been wanting to carve out some time and talk about some vintage lenses as the topic for my next video. To answer your question about work, my day job is in video marketing and I freelance as well. My most recent work has been selected for the Circus International Film Festival, which can be found at the link below if you're interested. vimeo.com/showcase/9119738

EF-M2 II did improve from the previous EF-M2 used in this video.

I did spend quite some time trying to dial in the infinity focus using multiple lenses and still wasn't happy with the results. You're not the first person to bring up the infinity focus adjustment so, in hindsight, maybe I should have mentioned it in the video, but every speedbooster has a focus adjustment. Most of them come pre-calibrated from the factory, or at the very least are usable enough, but it seems like this isn't the case for the Viltrox. From what I can tell everyone who has used one has had to do it on their own. I did, however, make an attempt to calibrate it myself, even though I personally believe this isn't something the end user should have to do. Not everyone is equipped with the proper tools and setup to accurately calibrate infinity focus. Maybe that's one of the reasons why they're cheaper? Who knows?

I wish, man. Would have saved me a lot of trouble.

I don't think so. The softness issues only happened at wide apertures. Your Canon lens is f/4, so you shouldn't have a problem. If you only need a speedbooster for that lens, I say go with the Viltrox.

24 Frames thanks a lot for your reply! Just bought Viltrox and it works fine with my 24-105, no issues so far

I did use the mk1, but to my knowledge the mk 2 did not improve the optics. The advertised improvements were housing and better electronics. You are mistaken that I did not calibrate it. I spent quite some time trying to get it perfect, hoping that I could still use it. Ultimately, I gave up on tinkering with it, not only because of focus issues, but firmware as well.

Who doesn't want bokeh? =)

It was not my intention. The older model is what I purchased and after some research it was my understanding that the optics did not change in the new model. I've read and heard accounts from others that stated they had similar results to mine with the newer model as well.

The autofocus is a pretty big flaw with the G85. But fortunately for me, I never really used autofocus. On the rare occasion that I did, I would use a Canon 80D with an STM lens combo. But I wouldn't give up on the G85! It was my primary camera for several years before I upgraded to the BMPCC 4K. I used the standard Metabones Ultra and a Sigma 18-35, shot in 4K, 23.98 FPS, and was so impressed with the image quality for the price. I still often use it as my B Cam. I took it with me to Ireland and Iceland, and I'd often even use the kit lens when low light wasn't an issue; it's light weight and dual IBIS was fantastic. With the G85, I think you'd be safe getting the Viltrox and you'll still be pleased.

I shot this short film on the G85 with the Metabones Ultra and Sigma 18-35 & Rokinon 85mm T1.5: th-cam.com/video/gsAsDSnNZnw/w-d-xo.html

Zeiss Contax lenses are for full-frame cameras, so you should be able to use the XL without any problems. Sorry for the late reply.

There seem to be quite a few M4/3 to Nikon F mounts available, but the speedbooster is not BMPCC4K specific, so you might run into some of the issues I mentioned in the video.

I totally understand your argument and agree that cultivating good relationships with people/clients is very important. To some people the Metabones may not be worth it. I, personally, shoot wide open often, and was not comfortable with the results I was getting, so I decided the Viltrox wasn't for me. That doesn't mean others can't benefit from it. Some people have gotten results they like with the Viltrox and that's great. I, unfortunately, did not have the same luck.

Same here...once I dialed in my infinity focus on the Viltrox, the results with the Sigma 18-35 are sometimes TOO sharp. Definitely not seeing the kind of softness shown in this video.

@@sharpasl307 infinity focus??

Thanks for watching! I feel it's a little of both. The 50mm f/1.4, for example, isn't the sharpest, and adding another glass element into the mix doesn't help. That being said, it seems Metabones did a really good job at minimizing the adverse effects.

@@film24fps Thanks for your reply. Would be great if you could do a test without any sppedboosters so that we can compare. cheers

​@@shamsheeds I could do that, but without a speedbooster you would have a different crop and would only see a more central part of the lens, x1.9 vs x1.349. That more central area compared to the edge of the lens would be different even without a speedbooster (the edge would just be cropped). If you add another glass element to the edge and compare that to the central area with no speedbooster, you would understandably yield drastically different results.

@@film24fps You are indeed right. Just sharing my experience; for me an advantage of using a speed booster on the Bmpcc 4k is that it helps to avoid dust on the sensor itself. Whereas if there is dust on the speed booster, is is less visible and easier to clean. I have had a speed booster on mine most of the time and never had any dust issue. The last time I used a mft native lens, and had the speed booster back on, I ended up with a dust on the sensor which was annoying.

Awesome! I'm glad I could help!

When you connect the Viltrox through USB it shows up as a drive on your computer. Download the firmware and drag and drop it onto the "drive" (speedbooster) and it will install automatically.

But is this the viltrox m2 ii? Gerald said they updated it and the new one is much better

Yeah, I think the difference would be most visible when using wide apertures.

Thank you! I compare the Metabones EF-BMPCC4K to the Viltrox EF-M2 Mki. In his video he used the Viltrox EF-M2 Mkii, and compares it to the Metabones EF-MFT and the EF-BMPCC4K. What I took from his video is that the Viltrox EF-M2 Mkii is an improvement to the Mki, and that the EF-BMPCC4K is better than the EF-MFT at low apertures. I remember him saying that the improvement is not worth selling your EF-MFT to buy an EF-BMPCC4K version, which is understandable since you would lose some money, but the EF-BMPCC4K is still better. If you don't own either of the Metabones and are thinking of buying one, I'd suggest the BMPCC4K version.

Hello! What I meant by crop lenses was lenses that are intended for use with smaller sensors like APS-C. If you use them on a full-frame camera, the image will not fill the entire sensor. Sigma's DC line or Canon's EF-S line are examples of crop lenses.

That’s interesting, I film on a gh5 m4/3 and are always annoyed I can’t really have a nice wide lense w/out a speedbooster due to the 2x crop. Could I find similar cropped lenses for the Panasonic m 4/3 range?

​@@halomaniackslashcraz These kinds of lenses wouldn't help you have a wider FOV. Crop factor is a confusing thing. In an attempt to make it less confusing, manufacturers always reference 35mm sensors. The labeled FOV on crop lenses reference a full-frame sensor, so you still have to apply the crop. If you see an EF-S 10-18mm, it means that when using it on an APS-C camera, it would actually be a 16-29mm. The only thing that changes is the projection onto the sensor, meaning a crop 10-18mm lens and a full-frame 10-18mm lens have the same FOV on a crop camera, but the crop lens can't be used on a full frame camera, since it was only designed with the smaller sensor in mind. Hope that helps!

Which version are you using, the XL or the Ultra? I can't say that I've noticed strong vignetting on the Ultra. I can imagine the XL would vignette because the wider FOV. The BMPCC4K with an XL speedbooster will bring the crop down to x1.216, which is wider than what the Sigma 18-35mm was designed for.

@@film24fps I am using the Ultra

@@losingthings1021 I just did a quick check and didn't see anything close to "strong vignetting". I'd be happy to take a look at some of your results.

@@losingthings1021 Is it possible to vent due to the hood being put on?

You're right. I figured it went without saying, since I mention the original BMPCC and Metabones made for it early on in the video.

I feel your disappointment ... I have to admit that Viltrox (and many others China companies) are fluctuating in their production quality. I was maybe just a lucky winner of a slightly better unit :) On both optical and electronical sides.

(reposted as 24 Frames) I did calibrate my Viltrox as soon as I got it and spent more than a few minutes trying to get it to be perfect. It seemed to me that with a calibrated infinity focus, shooting closer subjects wide open just wasn't as sharp as it should have been. The GH5s of course has a different sensor, but it's nice that your friend's Viltrox is working ok. At f1.8 and f1.4 I didn't get the sharpness I wanted, even after calibrating, so I decided to try a different adapter. The focus wasn't the only thing that pushed me away though, I didn't like the loss of iris control or the glitch that misrepresented the current aperture. In the end, I wasn't happy with the product and decided that it wasn't for me, but that doesn't mean that you can't be happy with it. Discussion is always good and I appreciate you taking the time to watch.

I mentioned this in an earlier comment. I don't have any vignetting added when using my Sigma 12-24mm @ 12mm. That being said, that lens has some slight vignetting on full-frame cameras, so it's slightly visible when using the Metabones, but it's not caused by the adapter.

Is that what you heard? I read that the EF-M2II has a better coating and updated contacts, but that's it.

Thanks man! I appreciate that.

Absolutely my thought and hate those nasty competitors who forget one day, they were exactly here!