Julian

That's a pointless comparison. Exposure lock is a simple software feature, most $100 point and shoot camera's can do it. Plenty of smartphone apps can enable it in cameraphones. The fact that most dslrs have moire in video mode is much more complex and not easy to fix (unless you make a camera that is aimed at movie instead of photography). It's hardware related. Exposure Lock isn't. There aren't many arguments to have no exposure lock. They don't have to protect anything in their line up. It is probably not there because of most users don't care. Although it is a bit weird since there is something like ProTune. Anyway, the whole ProTune thing shows that GoPro doesn't mind adding functionality to and end of life product. Exposure lock is a very small upgrade compared to ProTune. Both in functionality and and effort required to add it.

Geez, why so offensive about a little feature request. It is not a bug, it is just a very simple software feature that is not there and should be pretty easy to add. Just like a smartphone, the standard camera app doesn't have exposure lock most of the times. Many 3rd party apps do. Most GoPro users won't care for exposure lock or don't even know what it is. They just want to press a button and end up with a good looking video. Which is what the GoPro does. But if you want to mix GoPro video with your dslr footage it would be nice to be able to lock the exposure. That's all what's being asked for here. With adding exposure lock GoPro is not going to cannibalize any of their own products, it would just make the product better and they'd probably sell more of them. To me for example...

Indeed, it's funny. I don't get all the confusion either. It is really simple. If you don't understand it, just look at the various tests. You'll see how it works and you'll see it actually does everything it promises. There's not even math involved. On aps-c camera's every lens will give you the same image as it would on a fullframe-camera (same fov, same dof) and you get an extra stop of light. Thats all...   Anyway, let the whiners whine. I don't think people will be able to spot the use of a Speed Booster in final results. I'll be extremely happy with mine.

I'm checking the metabones website almost daily hoping the Micro Four Thirds Speed Booster shows up for (pre)order. Can. not. wait!!!!

Nice :) The magnification reduces 0,5x, so the minimum focus distance is getting longer? Sadly I don't have any small diopter lenses, but I'd be tempted to fit one into a dumb adapter just for fun.   Will this let in more light like the speed booster? Could you hold the combination in front of the camera/adapter and give it a try?

  Asking questions is fine, but you could pay a bit more attention to the answers. Just buy a $25 cctv lens on eBay, especially with your budget...   For extention tubes it depends on the lenses you are using. It's about the mount though, not the mm's. Which brand is your 50mm? If it's Nikon F, you get Nikon F tubes (and screw them on your adapter), if it's Canon FD, then you get Canon FD tubes.. etc. Get some cheap ebay tubes and experiment for $10. If you like macro a lot, there are plenty of options for $200.

I like the look and the aspect ratio. I do see the misalignment too. It is weird if it's impossible with the PL adapter like you say. Look at the shot at 0:59 - 1:00 for example. Even the woman on the left looks a bit distorted?

I have some really cheap old 2x and 3x TC's lying around. The quality is crap, but it'd be fun to see if it works! I might try getting the glass into a dumb adapter onto my GH2 :)   /Edit: Just tried with a 2x teleconverter mounted into a Minolta MD adapter and a lens hand held in front of it. I can turn the teleconverter in whatever way I want, but it keeps working as a teleconverter (loss of light, and longer focal lenght) either way?

That's quite expensive for a cctv lens.   I bought an 25mm f/1.2 with c-mount adapter for $22.99 on eBay with free shipping. Just do a search for '25mm f/1.2 cctv' and you'll find plenty of options. I'm not saying it is the same or as 'good' as the Pentax, but i'm not impressed with the quality of the Pentax either. If you just want a super bright lens to play around with, the cheap eBay one is fine i think.   Here's mine: http://www.youtube.com/watch?v=-WWfcWXtOjo

Please don't. I really dislike watching anything that is out of aspect ratio. It just looks wrong. I can't stand it, just like watching 4:3 stretched to 16:9...

It costs $30 to watch anamorphic flare?

I'm jealous! :) Love to see footage! What camera and lenses are you working with?

They won't make different magnification factors, read the white paper. Everything will be 0,71x. So on the BMCC you'll get a 1,6x crop.   By the way, the metabones website now lists different prices. $399 for Leica R to Fujifilm X or Sony NEX. I'd be more interested in Nikon F or dumb Canon EOS (easier to adapt other lenses) for the same price though.   On Facebook I asked when the M43 version is expected, they replied 'hopefully this year'... I hear march a lot, but what is the source of that?   Btw.. I just thought of another advantage to the Speed Booster: It'll be easer to do a quick 'switch' of lenses with anamorphic, without the need to realign the anamorphic lens or remove the clamp. Just add or remove the Booster to switch between standard/wide if you're working with a 50mm :)

  Yes, but not from EF to FD. The latter has a shorter register distance.   This all will work with a little piece of metal:   EF > Nikon F EF > Leica R EF > M42 EF > Olympus OM EF > Pentax K   And more.. basically look at this list: http://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html Everything that comes after Canon EOS you can use with an adapter on the EF mount.

Sorry for kicking this old topic up again... but in between dreaming about Speed Boosters, fullframe, 35mm f/1.0 and raw video, I just watched this movie. It is awesome on many levels!   Not only the action, setting, story (although its tin), but it looks very good too.   I wondered with camera it was filmed on. I did notice a little bit of rolling shutter in a few shots (it didn't bother me, but I just noticed it). The camera is moving at high speed all the time, but rolling shutter really is a non issue.   Apparently they did use PL lenses, I wonder which. I'm curious because move of the scenes are filmed pretty close and wide. I really liked the style.   Watch it if you haven't yet!

  Of course. But well, basically everybody on EOSHD just comes here to rave of bitch about the newest hardware. Check the amount of actual posts in the screening room... ;-) I like technology. It won't make me a better film maker, still I like it and it makes me enthusiastic.   Anyway, I'll be posting something in the Screening Room soon, made without a Speed Booster...

To be honest, I don't think it will have an noticeable effect on the market.   Don't get me wrong, I'm super enthusiastic about the Speed Booster and I can't wait to get a M43 version, but right now it mainly applies to dslr film makers. Yes, it does autofocus, but poorly. The big masses of photographers won't be as enthusiastic as I am. If I were a photographer, I'd just buy a Nikon D600 or 5D Mark II if I'd want cheap fullframe.   I don't have any figures (who does?), but I think the NEX/M43-users who mainly focus on filming are quite a tiny minority compared to the overall market.   People already know the value of fast lenses. They already are highly sought after and in demand by serious photographers/filmmakers. The f/2.8 lenses are relatively abundant and cheap. They will become more valuable to aps-c/m43 users now, but nothing will really change because they already were interesting on fullframe camera's and their market values are pretty settled down I think.

  Don't forget the fact that every lens you buy suddenly has a double purpose (with and without speedbooster). And you don't have to buy f/1.4 lenses anymore, you can pay less than half for a f/2 and have the same light gathering capabilities. Even a dirt cheap f/2.8 prime makes a nice f/2.0.   For example: I'm interested in buying a reasonably fast (at least f/2) standard lens (50mm equivalent) and a wide angle (35mm equivalent) for my GH2.   I could buy a Canon FD / Nikkor 24mm f/2 to get the 50mm equivalent, that would cost €300 to €400 on eBay. To get a 35mm equivalent, I'd need a 17mm. I could buy some crappy, rare, huge 17mm f/3.5, but that's not fast. The only choice is a Voigtlander 17.5mm f/0.95, for €1200!   With the Speed Booster, I could buy a Nikkor 35mm f/2.8 for €100 to get 50mm f/2 and a Nikkor 24mm f/2.8 for €200 to get a 35mm f/2.   For the price of the Voigtlander 17.5mm, you could buy the Samyang 24mm f/1.4 and the Speed Booster, and get pretty much the same effect: 35mm f/1.0. Plus the added bonus of all your lenses suddenly behaving the same as their much more expensive counterparts.   It is not cheap. But if you are in the market for a a few fast standard/wide lenses like me, then the Speed Booster instantly pays itself back. Plus you get options that aren't even possible without the adapter.   To me this actually is the most exciting product I've seen in years. Yes, we have seen a lot of technical developments on the camera side. Better sensors, cheaper camera's... Nice, but glass always stays the same. Nothing changes physics. Good glass is expensive. In a way it's nice that this doesn't change, lenses retain their value.   But now Metabones manages to come up with something that turns this very fixed part of photography/filmmaking upside down. If I were Sony (CaNikon are too slow anyway..) I'd instantly buy out Metabones and release this technology inside a mirrorless camera (with A-mount, just fit the element in place of the SLT-construction and use Phase Detection pixels) That would be the break trough cheap 'fullframe' camera and stir the market :)

Are you in a hurry? I've been wanting something similar, but I'm waiting for the Speed Booster.   If you want a standard lens on 2x crop, you basically need something around 25mm. A 24mm f/1.4 is the fastest you can get, but it's big and expensive (Samyang being the cheapest around $600). 35mm x2 is far to long as 'standard' for my taste.   With the Speed Booster you get 1,4x crop instead of 2x and you'll win a stop of light and dof. It costs $600 but it does kinda give you two lenses for the price of one, and it will do magic on any 50mm/35mm/24mm or wider you'll buy in the future. Even a cheap 35mm f/2.8 would turn into a nice f/2 standard lens.   If you want a cheap standard lens for your GH3 right now, find a 24mm f/2.8 or 28mm f/2.8, Nikkor or Canon FD. For $300 you might be able to find a 24mm f/2.   Keep the Nikkor, it will be magic with the Speed Booster ;)

  Everything in the white paper talks about 0,71x for the M43 version. I don't see any mention of a 0,5x version. They talk about the possibility of using DX lenses, this would be possible with 0,71x but not with 0,5x. http://www.metabones.com/images/metabones/Speed%20Booster%20White%20Paper.pdf   Interesting read by the way, check page 22/23 for the increase in sharpness.   Expect a dramatic increase on M43!   [quote] 1) both the Sony NEX and Micro Four Thirds versions give a dramatic MTF enhancement near the center of the image; 2) the Micro Four Thirds version is better than the original lens used by itself over nearly all of the Micro Four Thirds format; 3) in the outer parts of the field the Sony NEX version has slightly reduced contrast relative to the Micro Four Thirds version where their image circles overlap; and 4) the Sony NEX version in the extreme corner of the NEX format has similar MTF to the original lens in its original image corner.[/quote]   Anyway.. i'm more than happy with a 0,71x Speed Booster for M43. It just means I'll have to get rid all of my Minolta MD glass and trade it for Nikon F / M42.. But I can live with that :) I wonder if the M43-version will be active or passive. I could live with passive (cheaper!), although active would be nice for zooms like the Tokina 11-16mm.   By the way, It could be interesting for anamorphics as well to get smaller DOF. For example: GH2 + Speed Booster + 50mm 1.4 + Kowa B&H 2x should work... I'll definitely try it out if I can get my hands on this piece of magic.   Another thing I like: you can pack really light now. With one lens and two adapters you get four possibilities. Take a GH3, a 24mm f/1.4, a Speed Booster and a plain adapter for example. This would turn into:   24mm f/1.4 + Speed Booster = 34mm f/2 equivalent (17mm f/1 x 2) 24mm f/1.4 + Plain adapter = 48mm f/2.8 equivalent 24mm f/1.4 + Speed Booster + EXTC = 88mm f/5.2 equivalent (34mm f/2 x 2,6) 24mm f/1.4 + Plain adapter + EXTC = 125mm f/7.3 equivalent (48mm f/2.8 x 2,6)   One more small detail: it doesn't completely remove the crop factor on Sony NEX-camera's, there's still a little bit left:   [quote]A big problem with DX, APS-C, and Four Thirds format sensors is that they crop the full format image produced by conventional 35mm full frame optics. Since the Speed Booster essentially compresses the image formed by the objective lens into a smaller size it helps to undo the cropping effect. The Speed Booster doesn’t completely recover the corners of the original lens – it would have to have a magnification of 0.67x or 0.5x, respectively, to do that for DX or Four Thirds formats. However, it does provide a very useful and welcome field of view increase with its 0.71x magnification.[/quote]   Not that it is a big deal, actually the new cropfactor is 1,065x on Sony NEX (1,5 x 0,71).

By the way.. if Metabones would make a 0,71x adapter for M43, it would probably work fine with aps-c-lenses! Not EF-S, because of the rear element. But Tokina 11-16mm f/2.8, Tamron 17-50mm 2.8 Sigma 30mm f/1.4, etc... they would behave the same on M43 as they do on aps-c.

  Maybe those professionals are just old fashioned? :) or they are shooting film...

No, never. Why would you when you have a histogram?

  Did Metabones state this somewhere? A 0,5x Speed Booster sounds great... but I suppose it would be harder to manufacture and it would be bigger/more expensive. If they could pull it off it would be awesome. every cheap fullframe f/2.8 wideangle turning into f/1.4... :wub:

  I don't see the point or logic there.. if you want to adapt other lenses, the EOS adapter would be the best option.   On the EOS mount you can use Canon EF (of course), Nikon F, M42 and Leica R with adapters.   You can't use 'whatever format' because the register distance will have to be as long as Canon EF mount at least. Leica M, Canon FD etc is no option.