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lucabutera

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Posts posted by lucabutera

    BM Ursa Focal Reducer "Speed Booster" Prototype.

    In: Cameras

    Posted

    14 minutes ago, 7 Lakes said:

    Chromatic aberration shows up in the trees and TV antenna.

    No. I think you're looking at 4k with a small youtube window. I recommend watching the movie in full screen! The Speed Booster lens does not add any artifact, rather it increases the light on the sensor by improving the dynamic range and decreasing the noise.

    Petition for Samsung NX1 hack

    In: Cameras

    Posted

    On 25/8/2017 at 0:00 PM, kinoseed said:

    I wonder if we'll see samsung cameras in a few years again...

    "Samsung heir sentenced to 5 years in prison for corruption charges"
    http://news.xinhuanet.com/english/2017-08/25/c_136554962.htm

    Hi Kino, In relation to this I think it changes little if the heir of Samsung is in prison.
    The data is clear, Samsung's strategy to focus their employees on commercial products and smartphones has proved to be a great success.

    http://www.bgr.in/news/samsung-records-85-percent-jump-in-profit-in-q2-2017/
    I just hope that Samsung (also for a prestigious issue) continues to shoot professional cameras with NX2 release, also because Red has decided to enter smathphone market with Red Hydrogen damaging the Samsung Galaxy market , So I hope that Samsung to discourage Red (which has 100% sales of professional video cameras) is to produce professional cameras and camcorders, for professionals, invading Red's market.
    These are just my considerations, but the only certainty I have is that if Samsung comes out of a new professional camera, whoever has a Samsung camera will definitely run to buy it.

    NX-1 320mbps RAW-ish video?

    In: Cameras

    Posted

    4 hours ago, Juxx989 said:

    I spent a while reading and watching that Steve Yedlin Argument this inspired me to this experiment

    So I was just messing around the other day and decided to shoot 1080p on my NX1 and found myself  Fiddling with the bitrate hack which I usually leave on 140-160 mbps  

    Was curious so I started messing with the bit rates and typed in 400mbps and got denied kept dropping down in increments of 10 until it allowed 320mbps

    I took it out shooting and the camera didn't skip a beat with audio + Autofocus with both S lenses. was shooting for around 40min and the only thing I could tell was when you pulled the SD card out right after shooting it was a bit a little warm.

    I also Shot some 120fps @320mbps and it would only go about 30 sec before failing... I dropped it down to 300mbps and it recorded continuously I just stopped it after 3 min...

     

    Perhaps its wishful thinking but I do "feel" the image is somewhat "thicker" is this basically like shooting 4k 160 and outputting to 1080 and rez up  4k again?  

     

    First shot is the "Raw" File

    Second shot is a Grade I was trying to make match/cut with this frame. ( I failed the shot is much more blue than mine)

    Untitled_1_60.2.thumb.jpg.89e57f4545e68fc1e783f4fa6f48b1f1.jpg

     

    Third shot is 120fps @320mbps played back @ 20% speed

     

     

    I uploaded the bike shot Raw out of camera if you wish to mess with it. I have no pro scopes or calibrated monitor to see is there is any advantage to this let me know your thoughts and or findings (about 160mb)

    https://drive.google.com/file/d/0B0mz6D_bQOx7SFZSWnQyU1VINms/view?usp=sharing

     

     

    Hi mate, your file it's 62Mbit/s!

    For nice footage you need to minimize the cpu.

    Use this setting: 1) Turn off the audio. 2) setting all manual mode. 3) UHD 24Fps. 4) 250Mbit/s. You Can shoot for about 1 minute.

    I wait your response.

    Samsung NX Speed Booster

    In: Cameras

    Posted

    2 hours ago, Parker said:

    Hey Sammy fans. I'm just wondering if anybody has been able to successfully use any contax/yashica glass with the NX-L? I would just really love to see what my Planar 50mm 1.7 looks like with that beautiful expanded field of view. I've tried a couple different adaptors and suffered the same problem -- they'll mate to the lens just fine, or to the speedbooster just fine, but never together, something catches somehow, can't really tell what, and I can't get it properly mounted. Just wondering if it's an impossibility or if anybody has gotten these awesome lenses to work.

    Hello Parker, what problem with C/Y lenses?

    On 31/7/2017 at 9:14 AM, Caleb Genheimer said:
    On 31/7/2017 at 9:14 AM, Caleb Genheimer said:

    @lucabutera

    Are you still working on an electronic version? You might consider crowd-funding that one too as I'm sure there would be a lot of interest! 

     

    The Aputure DEC modded one was pretty cool to see (although it looks like it rules out using the NX1 Battery Grip). A full-on electronic one connected to the camera body with AF functionality would be awesome, and would instantly make the NX1 a top-class full-frame camera. 

     

    What do you mean for:  "A full-on electronic one connected to the camera body with AF functionality"?

    Max bitrates and does the NX1 hack actually reduce macro blocking?

    In: Cameras

    Posted

    9 minutes ago, SMGJohn said:

    Yes but having autofocus and stabilisation off is a big bummer when you use the camera for its mobility like me and do not have huge rails and tripods to work with. 
    At best it will do 160mbps but its unstable, it could just be my card is too slow even though its a 2000x Lexar from 2016 300MB/s. 

    It would be interesting if anyone could test an even faster card to see whether it is the ARM CPU being limited in its processing capability or if its truly the SD card being too slow to write the data to.

    I think it is a processor data processing problem.
    It's a pity not to have a working team like magic lantern on Samsung NX! ...

    Max bitrates and does the NX1 hack actually reduce macro blocking?

    In: Cameras

    Posted

    These days I wanted to test the maximum bitrates with hack NX/KS.
    I've found that to get the maximum bitrates you need to turn off all the functions that require memory and cpu:
    So if I turn off bluetooth, all the automatic functions, and close the display by going on EVF can go up to 220Mbit/s without interruption and up to 240Mbit/s for about a minute.
    The benefit that is obtained is that the macroblochin is reduced in size, transforming itself from small squares into a noise-like grain.
    What I think is that if the hack could turn off the display and the EVF being recorded, the NX1 could go over 250Mbit/s without any recording time limit.

    NX-1 vs 5D4 vs GH5 Test series

    In: Cameras

    Posted

    10 hours ago, Juxx989 said:

    it was made official no cameras from Samsung...

    http://english.etnews.com/20170406200003

    Now only if we could get that source code or whatever kino and them need... ML Can squeeze 4k Raw out of a 5D MK3 I know raw video could be possible on NX-1

     

    Im sure this is over simplifying  but it seems you would have to just tell the camera to record 24 8mp raw files a second... It can do 15 a sec with 28mp raw... this seems plausible 

    I really wish I knew reverse engineering... or forward engineering even!

     

    Like this? https://www.zynamics.com/software.html 

    NX-1 vs 5D4 vs GH5 Test series

    In: Cameras

    Posted

    Samsung has created a camera too futuristic to be replaced soon.
    The great definition, detail, ergonomics make NX1 an irreplaceable camera.
    I hope that the Samsung resume soon to build camera, or that some manufacturers put on the market a new camera taking inspiration from NX1 camera, acquiring its technology and perhaps implementing it with a full frame sensor.

    Samsung NX Speed Booster

    In: Cameras

    Posted

    On 23/3/2017 at 1:46 PM, Kisaha said:

    Excellent own-view!

    Ι can't wait for Lucas's next NX - shenanigans!!

    Take our money Lucas!

    Hi Kisaha, excuse my absence, at this time I have a lot of work, I do not understand what you mean, can you be clearer? thank you.

    Samsung NX Speed Booster

    In: Cameras

    Posted

    1 hour ago, keessie65 said:

    Interesting! How did you mount the Biotar to the adapter? What is the final focal length of the setup? And perhaps a photo of the combined!

    Thanks!

    Yes, I mount the Biotar with NXL. I use this sequence: NX1 > NXL speed booster> EF/Exacta > Biotar > step up ring > Anamorphot.

    The NXL it's focal reducer, the Biotar 58mm with NXL get the lens about 62mm without lost light stop.

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