From the reviews, it seems like this adapter doubles the focal length of a lens. If that's true, then on a BMPCC, would a 50mm lens become a 288mm?
299404
Changes in focal length have nothing to do with the adapters, they have to do with the size of the camera's sensor. The BMPCC has a Super 16 size sensor in it, which means it applies a 3x crop factor to any lens mounted to it (these can be native lenses or adapted lenses). A 50mm lens would have a full-frame equivalent focal length of 150mm, a 28 would be an 84, and so on, regardless of whether or not it is mounted using an adapter. The only thing adapters do is adjust the distance between the rear element on the lens and the camera's sensor. Lenses are manufactured to focus light onto a point a specific distance away from their rear element, and this distance is different for different mounts. For example, the distance between the mount and the sensor (called the "flange distance") on Canon DSLRs is much greater than the distance between the mount and the sensor on cameras that accept Micro Four Thirds lenses natively (the BMPCC falls under this category.) In order to mount a Canon lens onto a M4/3 body, you have to "make up" (or add on) that distance with an adapter (you also need the adapter because the specific geometry of the mounts are different). As a side note, not sure where you got 50 times 2 equals 288.
299405
The crop factor or doubling of the focal length has nothing to do with the adapter is is caused by the size of the sensor. You are adapting a lens that has a focal length of 50mm on full frame 35mm sensor the bmpcc has a super 16mm sensor so you are using only the center 16mm of the image circle thus it is cropped.
796602
Hello, the 50-150 is an APS-C sized lens, so it will work with your camera in the DX crop mode, and will give the reduced resolution that mode results in. The effective focal length would be as if the lens were on a DX body, as well as the commensurate impact on depth of field.
157549
The BMCC has an EF mount (as I understand it), and this lens has is for Canon cameras with EF compatibility. So even though the lens is not specifically stated for a BMCC I would expect it to work.
303935
It fits on a lens with 52mm filter threads so that you can use 58mm filters. So the answer is yes. I just thought I'd clarify that you meant 52mm filter threads on the lens and not a 52mm focal length lens.Edit: Sorry, I hadn't seen the other answers before I posted mine.
1746322
Yes, We have used it with a BMPCC and it did a good job. However keep in mind the adapter does not support any camera to lens auto-features.
1710416
Others have pointed out that Metabones makes a version specifically tailored for the BMPCC. This version is also a different conversion factor. If you were to have a non-speed boosting Nikon adapter and one of these you've effectively got two lenses taking one slot in your bag, a tele and a normal/wide. With the Blackmagic cameras one has the option of using this "generic" MFT converter and the higher magnification versions made for their camera and now you've got three lenses taking the space of only one in your bag. Tele, normal/wide, wide/ultra-wide
2184672
It will only work in manual focus mode with the 50-500mm (i.e. you'll have to focus the lens manually). Like any other 2x converter it will not only double the focal length, but also decrease the aperture by two stop making the lens too dark for any camera to focus automatically (i.e. f/6.3 -&gt; f/18 @ 500mm)! The camera autofocus only works on lens faster than f/2.8, like the 70-200 f/2.8 (or 120-300 f/2.8) for example with this 2x teleconverter
2062351
Yes, I have been using this lens with the BMPCC and it is an excellent choice. It does work with the focus and iris buttons. With this camera, you have to push the focus button if you don't want to manually focus, it does not have continuous autofocus with any lens. The image stabilization is excellent.
88551
Hi - Just double-checked a couple of OM lenses on my Sony a7r using this adapter. I want to make sure I'm completely understanding the question: if you're asking whether there will be any vignetting of the image, the answer is no (except to the extent that a specific lens shows some light falloff at the edges, but that's not an adapter issue, and you'd have the same phenomenon on an OM film body). If the question is whether or not the image will be cropped (using the term to refer to the so-called "crop factor" associated with smaller-than-24x36 sensors): again, the answer's no. OM lenses are full-frame lenses, the a7 is a full-frame body - so no cropping of the image. Hope that's helpful! Hi - Just double-checked a couple of OM lenses on my Sony a7r using this adapter. I want to make sure I'm completely understanding the question: if you're asking whether there will be any vignetting of the image, the answer is no (except to the extent that a specific lens shows some light falloff at the edges, but that's not an adapter issue, and you'd have the same phenomenon on an OM film body). If the question is whether or not the image will be cropped (using the term to refer to the so-called "crop factor" associated with smaller-than-24x36 sensors): again, the answer's no.... » Read More Hi - Just double-checked a couple of OM lenses on my Sony a7r using this adapter. I want to make sure I'm completely understanding the question: if you're asking whether there will be any vignetting of the image, the answer is no (except to the extent that a specific lens shows some light falloff at the edges, but that's not an adapter issue, and you'd have the same phenomenon on an OM film body). If the question is whether or not the image will be cropped (using the term to refer to the so-called "crop factor" associated with smaller-than-24x36 sensors): again, the answer's no. OM lenses are full-frame lenses, the a7 is a full-frame body - so no cropping of the image. Hope that's helpful! « Show Less
741158
Hello - I bought this adapter thinking it would fit those lenses - and it didn't. I have both the 50mm f/1.8 and the 28 mm f/2.8 - both didn't fit b/c there's a metal stub at the bottom that does not allow it to mount on the adapter. The only lens I had that fit was the 75-150mm lens.I wouldn't buy it.
225653
Yes. It fits the BMPCC quite well and auto focuses well, but slow. Works great in MF. Nice balance together (surprisingly)
1532033
If you're using on the APC-S type sensor (i.e. like on the Sony a6000) there will be a crop factor of about x1.5 (so this is equivalent to about 45MM --> 30 * 1.5) - oops - looks like this was already answered below. Great lens - not as sharp as I was expecting in low light - for which situation you're better off with Sony's 50mm f/1.8).
225654
Yes and nicely too - remember that this is MFT coverage and the BMPCC is a super 16. but it is probably the widest lens. the other thing to consider is the front element and lens barrel has a built in tulip hood - no ability to use screw in filters. The front element is also bulbous - you need to be careful. Other than that it beats the Olympus 9-? . the other reason I chose it is it has internal focus - the barrel does not extend when you zoom (Olympus does)
1873730
Not is a problem, is normal. Adapter complete is for telephoto (extended lens). Half adapter, without final part, is for wide angular (compressed lens). Tunnel effect is present if you use the adapter without this considerations
540560
I use it with my A7 fine with no problems. I use a 50mm summicron and get some of the sharpest digital photos I've ever seen. I would never spend $175 for an adapter these work just fine.
536003
it works even there is no adapter? i can put it directly to my BMPCC??Thanks so much
6010
I would assume so. The adapter fits on the camera, then you screw this thing in. Clarity and resolution, focusing, etc. are horrible.