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Everything posted by dahlfors
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Hah! It certainly hasn't struck me to pull the lever out when tightening the camera! That feature has totally passed me by, so thanks a lot for that tip! Guess I should read the manual next time. Didn't expect to need that for a monopod
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Cool. I have the Benro monopod that is shown in your youtube video. I'm pretty happy about it. The only flaw is that the backplate is quite tricky to fasten properly together with a Nikon D800. The tightening screw jams into the camera body and it doesn't get properly tightened. But it's still great for traveling around light while getting nice stable footage.
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Nikon has filed patents for a mirrorless lens for a camera with APS-C-sized sensor. http://nikonrumors.com/2015/11/03/nikon-has-a-lens-patent-designed-for-aps-c-mirrorless-camera.aspx/ Not all of Nikon's lens patents get used in the end, so take it with a grain of salt. However, considering Sony's success with smaller mirrorless camera bodies suitable for photo & video and the current maturity of EVF's, I think Nikon is likely to be interested in getting into that market.
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What happened to your old Iscorama?
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The early rumours of Nikon D5 suggest that it will feature 4k. I find that very plausible, since Nikon introduces new image processors in their high-end cameras first, and then update cameras down the line with the newer image processors a while later. That's been their process for quite a while, and I think they will stick to the same method. The current imaging processors on Nikon cameras aren't capable of handling 4k. Considering how long time passes between the high end cameras like D3 and D4, I think it's very likely that the next imaging processor for the D5 will be capable of 4k - if Nikon wants 4k capable cameras in the upcoming 3-4 years - and I think they don't want to leave that out. That's what I think can be predicted considering Nikon's development process. I find it likely that D5 is the first camera to feature 4k, unless they develop some more video specific model, in the same range as D750 / D810. I'd personally like to see peaking as well, and if they bring in a processor that's capable of 4k - I'd love to see some 1080p high frame rate modes!
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Rich will know better - but by the looks of those photos I'd personally back away. I don't see how that rear element could get fixed without replacement. That's a nasty crack in the glass.
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Sony RX100 IV review – with 1080p this good, 4K is merely a bonus
dahlfors replied to Andrew Reid's topic in Cameras
I really hope the A6000 successor gets as good HFR modes as this. Very tempted on this camera, but I'd really want interchangeable lenses and all these features in an APS-C sensor... -
Streaming live video from mobile phones has already been working fine since a long time. I'm working for a company, Bambuser, that does just that - and has provided live streaming from phones since the company launched in 2007. It works plenty fine on 3G/4G. We have a specific platform for media & news companies, http://bambuser.com/iris - that is built on the same platform as the free-for-personal-use Bambuser app & service that you find at http://bambuser.com. Personally I don't see this as something that will fully replace camera men (if you want good images - you want someone with a good eye for composition). I see it as something that will make it possible to bring in footage that wasn't possible to bring in before due to resources / equipment in a particular location - or because no camera crew were actually at the spot when something occurred.
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Of course the colours will be punchier out of the box - he is shooting in Neutral on the D750. If you'd want to compare out of the box colours, Standard profile is the one to go for for a Nikon. Neutral on a Nikon will look less saturated than any standard profile on any camera. Amazing if this is news to that guy who says he shoots D750 and D810...
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Indeed. For you non-developers here: It's a whole different world to work with something like Canon Firmware & Magic Lantern where you actually have a nice code environment with a higher level programming language like C on ARM instruction sets vs working with Nikon firmware where there's no such development environment publicly available - and you must patch hacks in binary. Nikonhacker project's slow progress isn't due to the developers being bad at development (I believe some members of Magic Lantern project are also contributing to Nikonhacker project ). Nikonhacker work on proprietary custom hardware that isn't as common & well documented as ARM - and have no proper higher level development environment. It doesn't matter how good of a developer you are and how much experience you have - something with less documentation (or as in this case, no public documentation at all) and without a proper development environment will always take longer to work with.
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I also think I read that in an interview with Sony quoted in a post on sonyalpharumors, just a month or so ago.
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SD / CF cards / USB memories: Very resilient form of memory - there's lots of stories of cameras ending up soaked in water where the photos have been able to be read once the cards have dried up. The one weak part is the storage controller chip. If the controller dies - you can't access the memory by yourself unless you know your way around electronics really well and can hook up a 3rd party memory controller. Rarely the memory itself goes bad unless there's serious damage (like a fire) - so data rescue companies will likely be able to rescue data - for a price. Blu-ray: I've had properly stored DVD-R's and CD-R's have their data layers falling off for no reason after less than 10 years of storage (some of these failed ones were even expensive high-end brands marketed for their durability for long-term storage - while the cheapo brands have fared just as well). Most of the disks stored in the same manner for the same time period have had no issues at all. Due to this kind of random failure I think you'll never know beforehand which brands are safe to buy - or which batches from a brand that are ok. Hence I wouldn't recommend Blu-ray discs unless you do two copies every time. BD-R's on the other hand are very cheap - but if you got large projects you'll need to split them up on several discs. SSD: SSD's are actually same price or in general cheaper in price/GB than SD cards or USB memories. Very resilient memory - same thing applies as for other types of flash memory, the storage controller is the part that can fail. Even if storage controller fails, data should be possible to recover by data recovery companies - for a price. Conventional hard disks: The price/GB is still many times cheaper for hard disks than most other medias (BD-R's beat them, some tapes for tape drives might too). Due to hard disks often failing, and due to their fairly low price/GB - I'd recommend a NAS solution with proper redundancy. Redundancy means - should a hard disk in a NAS break, you don't lose data and don't need to find some means of recovery. You just insert a new hard disk and let the disk array rebuild. I'd recommend a NAS that has RAID-6 (2-disk redundancy) and at least 5 hard disks for longterm storage. The initial cost will be bigger, but for larger amounts of data and large projects this solution will win considered storage/price. Conventional large capacity hard disks will likely get ever cheaper the coming years due to larger & cheaper SSD's, until hard disks finally go extinct as a storage medium - in about 5-10 years. Conclusions: - If your data amounts that you want to put away for long-term storage is small - say, 500 GB per year, some flash-based memory will probably do fine. If your needs are larger than 4-5TB per year or so, I'd definitely recommend a NAS-based solution. - If you know your projects will fit inside the size limit of BD-R's so you don't need to split discs - they're a very cheap solution, even if you burn double copies of the project for safe storage.
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My bad, missed that! Andrew / Moderators, feel free to close this duplicate thread.
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This could be a groundbreaking camera. According to sonyalpharumors, Sony is working on a camcorder prototype that has the same sensor as A7S - and of course internal 4K recording: http://www.sonyalpharumors.com/sr3-sony-has-a-4k-camcorder-prototype-with-same-a7s-sensor-and-internal-4k-recording/
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I'm looking for something similar. Sony RX100 would be great for my use. But I've heard enough about RX100 III breaking (lens foldout mechanism) and the camera automatically starting while having it in pocket or bag, showing some error message on the display until it the battery has drained out. Not sure if these two things are better on the RX100 IV (although it might be out of your budget). I would also say Panasonic LX100. Only thing stopping me from picking that camera is that it doesn't have any higher framerate modes than 60fps. LX100 can't be beaten for its price.
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Thanks for the tip! Just tried it out on my 1080p-only Nexus 5. A major improvement over the default camera app!
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Not sure which Blackmagic camera you have. Personally I'd consider getting a camera that could share lenses with the BM. I'd also try out the handling of cameras. Some might be faster, easier and more natural for you to use. That in addition to lenses would matter more to me than to get a camera with the absolutely best sensor available. If you have good lenses and have a camera that you actually like to use - you'll be using it so much more and hence get more good shots. Also portability might matter for always keeping the camera with you. And nothing beats going to a shop to get a feel for the cameras & lenses when you want to get an idea of what size of lenses and camera is the right size for you. And talking about size: I'm still debating with myself what camera to get for my outdoors activities. Smaller is better, more durable is better. I'm currently waiting to see what the next APS-C camera (A6xxx/A7000) from Sony will be like, that one will likely be highly interesting for me - and maybe you too. But who knows when that will be released, the rumored release date just keeps on getting delayed.
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I agree, find out what can be done with a camera, and find out what you can make with the features. Your results were beautiful! Andrew Reid also used this effect in his music video that was featured in the A7S review, and I found it worked wonderfully as an effect in the music video: http://www.eoshd.com/2014/10/sony-a7s-review-part-2-conclusion/
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No, it works. I'm not sure if there's a language barrier here or not, but I'll try to explain a bit better: When you choose a frame rate, you set the amount of photo frames that should exist in a motion sequence - that's it. There's no natural rule telling what the single still frame can be or can't be. Imagine 24 cameras that you set to take a 1 second long exposure, and these cameras trigger 1/24th of a second after each other. If you stack these photo frames after each other in a motion sequence it will work - but any motion will have a crazy motion blur effect. ...and using a sensor in that kind of sense is exactly what I was talking about. There is NO natural rule that you are breaking - since all you do is capturing light data - and how you process that light data to motion picture sequences is up to the techniques involved. In today's sensors the exposure time does not overlap. Technologically - if you have a sensor that can store and buffer all the light data that hits the sensor - there is nothing that says that exposures can not overlap. If you have a sensor that constantly buffers the data for the last 10 seconds of light hitting the sensor (forget about exposure time - think of it as recording light data only), you can just request to read the data that you need. Another way of thinking about it: Imagine a sensor and a camera that you point to a scene, and the sensor being able to record every single photon hitting the sensor. You point it to a scene recording for one hour - and it has stored every single photon that has bounced from the scene and hit the sensor since. If you have all that photon data in addition to keeping track of when the photons hit the sensor - you can recreate any given moment during that one hour as a still photo - at any exposure time you want. ...or, you could recreate it as a motion picture sequence - with any crazy exposure time as you want. The same thing you could do with a sensor and a shorter buffer (one hour would require very large amount of storage, somewhere around 2-10 seconds would be more realistically achievable if you used a buffering technique with today's memory). So, technologically only things that matter are: that you have captured the photons in addition to knowing when the photons hit the sensor. If you have that data, it's up to the image processing what you do with that data. In this sense you could also have frameless motion sequences - where there aren't still images getting replaced as a sequence of images - but only actual pixels changing over time. But that's a whole other story...
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With a physical shutter, yes. I just want to clarify that it is not a physical impossibility if you have a camera without physical shutter / mirror in the way (although the way you described it is the correct way that cameras function today): Imagine a camera with a sensor that captures light constantly into a 10 second buffer. It would constantly capture more light as time goes by, constantly throwing away the data that is over 10 seconds old. Imagine the imaging processor requesting light captured at any specified shutter speed between 1/8000 and the maximum of 10 seconds (as in the buffer) for every given frame written to the file. Even though a camera functioning like this is purely fictional as for now - this IS physically possible to create. With really long shutter speeds it would produce smooth non-stuttering footage that is actually 24/25/30/50/60fps, where everything that moves fast enough would have a crazy dream-like motion to it. The question is rather why someone would put down the effort to create a camera functioning like this, since it's unlikely an effect that would have that many use cases. Perhaps it will be done some day to achieve other goals - like better DR or for the possibility to choose shutter speed in post for raw stills.
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No, it's the one that you can shoot 1080p raw with. Check the magic lantern table for max res output from different canon cameras: https://docs.google.com/spreadsheets/d/16cgnRivbUv7nA9PUlCLmLdir3gXdIN3pqzCNAAybepc/edit#gid=5
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I haven't always enjoyed the colours I've seen from the Panasonics either. There's a recent thread on EOSHD about applying a LUT to GH4 footage - which did wonders to the colours! I don't own any Panasonic camera myself, but I really enjoyed the GH4 colours after that LUT was applied - so I recommend you to search for that thread and find out if it works on G6 as well.
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If it's 128 GB in 180 seconds, that will be around 700 MB/s in write speed. That's good speed with so few spinning hard disks and means that the disks are writing near the limit of their max write speeds. You will most likely not notice any improvements in speed by switching raid mode.
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This is the reason why I've been keeping my most important data on software raid running on normal PC's with Linux/FreeBSD. As long as the disks are alive, I can just use new off-the-shelf PC hardware, put the disks in and have Linux/FreeBSD detect the raid setup. No need to contact manufacturers or scout Ebay for some discontinued hardware. Besides that, by running raidz2 I need to lose more than 2 physical hard disks in the disk array before I lose data - and in addition to that I sync & backup the most important data to other machines as well. I once got burnt and lost 1 full month of work (that I had to redo again...) when a computer's PSU went up in smoke. Hence I've been very wary of my data since that. Since the 90s I've had 15-20 disks die on me, without data loss. Soon we'll all be shifting to SSD's. Both Samsung and Toshiba have announced 16 TB SSD's, while it seems like hard disk manufacturers are getting stuck at around the 8-10 TB limit for a while. Here's a shot from a Toshiba presentation: http://www.nordichardware.se/images/labswedish/nyhetsartiklar/Lagring/toshiba.nand/fullimages/toshiba-qlc-roadmap-640x0.jpg For enterprise, they're expecting to deliver 128 TB drives by 2018. Hopefully this will drive down the prices on moderately sized flash drives Oh, and about speed... The latest flash drives (needing PCI express 3.0 interfaces) have read speeds of 5.5 GB/s and plenty fast write speeds too. I'm not sad to see the demise of hard disks...
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Correct! With RAID-5 you lose the size of one single disk to parity information (the redundancy). With 3 disks, 1/3 goes to redundancy, with 4 disks 1/4 goes to redundancy. Yes - if it came preconfigured like that, I'd assume it has the processing needed to get proper speed out of it in RAID-5 mode. When speed is enough, RAID-5 should be a good choice for size vs redundancy for something like a video editing array (in other words: you want a bit of redundancy so that one hard disk failure doesn't stop you from working immediately, but you don't need A LOT of redundancy - since you can back up the projects on other external disks).