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" I might use AF to get initial focus sometimes, then deactivate it, zoom out and compose my shot." Guess you have parfocal lenses.
So for 4K at 60p we will be able to get out raw - and for 4K at 30p too? Well, not bad - given the fact that Sony uses 3G-SDI what is limited even more.I believe it is a data throughput limitation. 5.7K is a LOT of resolution, so getting that out at 30p over 6G is pretty much saturated at 10-bit. Same goes for 4K at 60p.
Don't trust a machine to be creative for you. There are times AF has its place. It's nice to have for that 1:10000 time I ever needed it whilst recording, but the rest of the time I focus manually, as do all the other pros I know. I might use AF to get initial focus sometimes, then deactivate it, zoom out and compose my shot. Then rack as needed, if needed. I would never use AF for creative control at anytime...not on a gimbal, or otherwise flying, not on a jib, not as a crash cam. Never.
Don't have it in front of me but I think 120p is 10-bit 422 and 240p is 8-bit 420. It's a data rate thing.
My view is quite the opposite. Let's say we are shooting the guy and girl you described. Let's also assume we have the camera on a tripod and we want focus on each face at the proper moment in a narrow field of focus. First, we establish the blocking and then we set marks for the actors. Having established the focus points, they are marked and set. During the scene, the focus is pulled at the proper times and we get the shot. Except that the actor missed their mark and we didn't quite get it. Or the actor did a fabulous take that the director loves, but in that take, the actor moved in an unexpected way forward or back, out of the field of focus. The shot is lost because we didn't hold focus.
Meanwhile, the operator using auto focus taps the screen at the right time and the camera holds focus on the actor, regardless of them hitting their mark. The fabulous take is saved as the camera was able to react to the unexpected move.
Published RAW output specs:So for 4K at 60p we will be able to get out raw - and for 4K at 30p too? Well, not bad - given the fact that Sony uses 3G-SDI what is limited even more.
But is it valid to state that the camera has a 10bit internal signal processing?
Hi Mitch,
Now that you played with the EVA1, can you confirm if 240p is only 8-bit 4:2:0? or will it also do 10-bit 4:2:2?
Yep. Just one: a Fujinon. You really only need one fast parfocal servo zoom lens.
20 years in the broadcast industry. Used lots of parfocal servo zoom lenses attached to some kind of video camera and recorded to all sorts of media, analog or digital. Going from that to DSLRs and stills lenses was always a :/ for me, especially changing focus during a shot or attempting a zoom. Plus the 8bit 4:2:0 and h.264.... egh.
Anyway, stills lenses are for taking stills. If you're going to use them for motion, there's caveats. But if I had to donit, i would, but I'd just reverse my setup: frame and then focus. Easy enough to remember.
I prefer motion picture primes, but if I have to have a zoom, I'd prefer it be a proper motion picture one. They just behave the way that I'm used to. And I like my tools to help me work. I don't want to work around my tools...not in operability and ergonomics. Lightweight fly-by-wire stills lenses for stills? Absolutely. I do it all the time. I have some nice Canon L lenses just for that. They most likely will find themselves on EVA1 from time to time, if I buy one. Parfocal zooms for motion pictures? Well, yeah. Pity I can't mount my Fujinon B4 to EF. Oh, well.
Mitch, any news yet on what all passes through when using a 3rd party LCD option? All menus; green focus squares; etc?
As well, any info yet on more specifics of the EIS system and what makes it unique or special, and specific recommended/not recommended use scenarios?
Thanks for the great engagement!
I own a set of voigtlanders as my M43 workhorse and will be going with a set of Milvus with the EVA-1. Suffice to say I am a manual focus guy. But saying that you don't use AF and pros don't use AF is irrelevant to the point people are making. Today AF largely sucks (with the exception of DPAF, which is still in infant phases) and manual focus is superior. Arguing about the future use case of AF based on the present day, or the historical implementation of AF, is silly at best.
Light camera just released a bunch of photos that they claim to be equivalent to 52 MPX from their multi (16) lens/sensor camera.Technology will make this possible. It's already happening. It won't be long. Take a camera with the brain of an iPhone/google image cloud software, with robust image recognition for thousands of objects. Add it to a small dual lens setup on top of a camera, which can read a scene and calculate depths based on the offset of the different focal lengths (the software calculating the iPhone blur maps is based on this, and 3rd parties plan to create depth sensing apps once the feature is unlocked to developers). Add to that laser, short high frequency sonar bursts, etc. in smaller and smaller form factors that can combine all of this together, both at a hardware and software level, with processing improvements in AF algorithms that already exist, and it's easy to see that the future of AF will be incredible.
It's now called "enthusiast". You take a shot, then do a wave and now you're officially an enthusiast.I do however agree that the future will bring significant advances in auto focus tech and that will largely be driven by the "prosumer" market (man, we need a better name for this).
The racking speed adjustment already exists on many cameras (NorBro linked to 1 D XII earlier in the thread) and GH5 actually gave so many options on its AF system, a lot of early buyers had trouble setting it up to their liking.One of the concerns in the racking scenario above is regulating the speed of the racks between two characters, but conceivably that could be regulated by drawing a line between the two subjects which designates the speed of the rack (separate from tapping between them which would ask for an immediate rack). And with very delicate situations such as an extreme closeup with shallow depth of field where one must make a choice between the two eyes, having a focus indicator appear on each eye and using the same techniques to choose when and how the rack occurs will be imperative...
Do the math. The limit is the 6G spigot, followed by the recording capacities on the SATA-based SSDs used by the offboard recorders. These are the pinchpoints in the pipe.
The smallest battery looks set to drive the camera for a bit over two hours, the largest battery will offer four hours of continuous use, and the batteries charge about as fast as they discharge. I believe Mitch said the camera will include a dual charger; I would guess it would be the same unit as included with the UX180/UX90. If so, that should mean charging should take about the same time as discharging; with one battery on the camera and two on the charger you should be set for all day use (and probably overkill; you could probably go all day with one on the camera and one on the charger).
The menu tree can be seen on outboard monitors, but the shortcut "Home" page cannot. The Home page is the one that looks like the Home screen on the VariCams and is similar to the layout used on many cameras (Alexa, F5/F55, Phantom Flex 4K, C700). The Focus Assist tools are not available on the monitor output.
The flange distance is generally an issue in adapters that don't have optics in them. It seems to me that since SpeedBoosters are inherently optical adapters, that it's possible that the flange distance can be taken into account in the design of the optical element.
I also would think they'd have been all over it, so one of two things must be the case... either:
1) it's impossible and I'm a moron for thinking it's possible, or
2) they never thought about it.
I think Brian Caldwell has participated here on DVXUser before, but I don't know what his userid is or I'd send him a message to ask if it could be done.