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sunyata

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  1. Like
    sunyata got a reaction from fuzzynormal in Must watch video on full frame vs crop cameras. "Full frame look" covered.   
    What the hell is going on here? I've totally lost track. Bring back film!
  2. Like
    sunyata reacted to jcs in The very underestimated problem of RADIOACTIVE lenses   
    Out of curiosity I purchased one of these to measure the computers/electronics around me: http://www.amazon.com/Trifield-100XE-EMF-Meter/dp/B00050WQ1G/ref=sr_1_1?ie=UTF8&qid=1398562001&sr=8-1&keywords=radiation+meter . I ended up moving some equipment around so that I would only be exposed to 2-3mGauss (some UPSs were outputting 100+mG). About a year later I purchased a new MBP and got the meter out to check it. I turned the meter on and the meter was pegged (100+mG, perhaps over 200mG based on the increasing scale). I thought, wow Apple, that's not cool. Then figured perhaps the batteries were low or the meter was bad, since as I walked away from the laptop, the meter didn't drop. I put a new battery in it- same issue. I tried another meter (had also purchased a directional meter)- same issue. I noticed as I walked away from the window the meter dropped a little. So I left the apartment, and walked down the hall. The meter slowly dropped. I left the building until out in the middle of the street- finally back down to 2-3mG. Then a lightbulb went on- about 6 months after I purchased the meter,  SoCal Edison had upgraded the power lines by my window. I had measured right at the window when I got the meter to check the power lines- it was 3mG. I returned to the same window position and the meter was pegged- 100+mG (guessing over 200mG from increasing scale).
     
    I had developed this weird shoulder issue where the muscles always stayed contracted- it was my right shoulder and figured was due to mouse/computer use. However every time I left the apartment for a few days or more, my shoulder got better. I never put 2+2 together regarding the upgraded power line. So, I moved everything out of those rooms away from the power line as much as possible (new locations were about 15-30mG, still too high but much lower). My shoulder got better in about a week. I asked my MD if this could be psychosomatic- he said, probably not, he's heard from plenty of patients whose issue(s) got better after reducing EMF exposure.
     
    I took the meter with me when looking for a new place to live. I was surprised how bad other places were, but none as high as the old place (top floor, right by power line). Surprisingly, landlords and real estate agents said other people did this practice as well (brought meters with them). The new place I moved to reads less than 2mG in most areas.
     
    High EMF is linked to brain cancer, ALS, Alzheimer's, and leukemia, however the evidence is not yet strong enough for the EPA to regulate it and/or politics and influence from the power companies: http://www.epa.gov/radtown/power-lines.html. They suggest moving away from the source of EMF, which I did. Another weird symptom was strange allergies- was it something in that apartment other than EMF? I don't know, but I brought all my equipment and furniture from the old place- so far no more allergies.
     
    Regarding ionizing radiation. What does it do? It damages your cells and DNA over time. The good news is if you're eating healthy, exercising, and getting plenty of antioxidants, your body can repair the damage (including DNA) if the doses aren't too high. The problem with studying the health risks is the wide level of variables. Cancer from low-dose long exposure radiation is hard to prove a source of the cause. Smoking won't kill you right away, but it may lead to lung cancer, heart disease, and other diseases. Some folks won't get cancer because their bodies can handle the toxic smoke. Others who only got second hand smoke will get cancer. It took a long time to overcome politics, etc., for the truth to get out and for warning labels to be required. That said, people smoke anyways, some still smoking after getting cancer/emphysema, as nicotine is so addictive. Many people think they are immortal or don't think they care about living a long healthy life. However after getting sick some decide they want to live and radically change their behavior.
     
    I used to snicker a bit about the 'tin foil hat people'. Now, if there is a known risk and it's easy to avoid, I don't think twice about avoiding the risk. The only issue about the new Faraday cage-like place is I can't get OTA digital TV signals and Verizon coverage is poor (I'm using ATT, some friends use Verizon and their phones don't work very well) :)
     
    I could go on about heavy metals, but that's further off topic and a story for another day (short summary- avoid mercury and aluminum in vaccines, don't drink tap water (use RO or distillation and add trace minerals), remove amalgam fillings, skip gadolinium contrast if you ever do an MRI, limit large fish consumption (except perhaps wild salmon), don't drink bismuth (Pepto Bismol etc.)). Two books which can be very helpful:
    http://www.amazon.com/Amalgam-Illness-Diagnosis-Treatment-Better/dp/0967616808/ref=sr_1_1?ie=UTF8&qid=1398564805&sr=8-1&keywords=heavy+metal+cutler
    http://www.amazon.com/Hair-Test-Interpretation-Finding-Toxicities/dp/0967616816/ref=sr_1_3?ie=UTF8&qid=1398564805&sr=8-3&keywords=heavy+metal+cutler
  3. Like
    sunyata got a reaction from Junior in The very underestimated problem of RADIOACTIVE lenses   
    Welcome to the forum junior! 
  4. Like
    sunyata got a reaction from foliovision in The very underestimated problem of RADIOACTIVE lenses   
    from wikipedia, or course:
     
    Thorium dioxide was formerly added to glasses during manufacture to increase their refractive index, producing thoriated glass with up to 40% ThO2 content. These glasses were used in the construction of high-quality photographic lenses. However, the radioactivity of the thorium caused both a safety and pollution hazard and self-degradation of the glass (turning it yellow or brown over time). Lanthanum oxide has replaced thorium dioxide in almost all modern high-index glasses.
     
    and this:
     
     it was found to be a carcinogen, sometimes causing cholangiocarcinoma  (that is with respect to another use for thorium dioxide in the past, as an x-ray contrast agent).
     
    I'm not really concerned about 90% of my lenses, but I was just working on an old rangefinder lens, including taking apart the elements and removing fungus, so this is good to know. My main concern wouldn't be beta rays but just doing something stupid like shattering a lens trying to re-glue it or something. Not likely, but I'm going to check if thorium dioxide was used in glass before I work on it now. Thanks for the post junior.
  5. Like
    sunyata got a reaction from mtheory in LYTRA Illum - the game-changing DSLR killer?   
    it's an idea i've wondered about since i was a kid playing with prisms and pinhole cameras.. why do you have to commit to a specific focal point if all the light is available in the area of a circle.. why couldn't you just record all the light? this is basically what they have done, but in order to be able to focus later, you have to also record the vectors that the light is traveling in.. this is why that lens is fixed, you need an array of light sensors.
     
    here's the paper that was done by the founder while he was at Stanford, before the company was launched:
     
    https://www.lytro.com/downloads/resources/renng-thesis.pdf
     
     
    it's not new in theory but to make a consumer camera it required all the other digital components to exist. from what i understand the difficulty really is in developing the algorithms specific to this novel device. 
     
    and i do think it's a game changer.. there are really interesting interactive implications too.. you could develop a file format that contains scatter light vector info - or whatever they are calling it - and work with mozilla and google on a plugin. it's gonna be a big file, but how cool would it be to have all images online be capable of focus.
     
    add hdri to the format and it's starting to feel like a bad sci-fi movie set in the not too distant future. 
  6. Like
    sunyata got a reaction from HurtinMinorKey in Must See for GH4 owners - Recovering Super Whites   
    I don't use resolve but It's highly likely it's image caching based on your viewer settings.. if you have to load frames before you get realtime playback, probably that's it. 
     
    well hot damn.. check it out:
     
    from the davinci resolve website
     
    "Real time On-The-Fly extremely high quality proxy generation without disk cache."
  7. Like
    sunyata got a reaction from Julian in Potential changes to the forum to prioritise good content, suggestions welcome...   
    yea, i've noticed a high level of confrontational people on this forum too, but it's not the dissent that is a problem I think, it's the personal attacks. saying someone still lives at home and uses "mommy's credit card", lol.
     
    you could just start a warning system with clearly stated rules not to break? no personal "ad hominum" attacks and get a moderator, even if that moderator is a user.
     
    i'd also advise you to take a less active role in responding to negative comments.. just ignore some of them or issue a warning, but don't engage in an argument.. that just feeds the trolls. don't feel the need to fight back if someone criticizes the site, just consider if it's worthy of an official response.
     
    from a ux perspective, rather than sorting based on quality of post (or only allowing certain people to speak), just have a collapse of a comment if it gets too many negative votes, just like youtube.
  8. Like
    sunyata got a reaction from Ivan Lietaert in Blackmagic respond to EOSHD about supporting existing cameras - audio levels and histograms on the way!   
    It's possible that blackmagic just responded to Andrew's questions with boilerplate responses, in other words, they are the ones copying and pasting..  just playing devils advocate.
     
    But I saw an interview where the president admitted that formatting a disk in the camera was way down on his list of to-do's and the response gives a false sense of "almost being ready".
     
    My general sense is that blackmagic is a little far over their skiis on products and firmware updates will be far from satisfying for most little glitches with older, less important stuff.
  9. Like
    sunyata reacted to Christina Ava in POLL: What editing software do you use?   
    i use both premier and FCP! and if i could use a pair of scissors like the old days would cut with that too!
    it really doesnt matter they are all good!
     
     i voted premier because i use it more often, and  you didnt inlude an option for both
  10. Like
    sunyata got a reaction from nathanleebush in Sony A7S - 4K sample video   
    He's blinking Morse code.. "I'm being held prisoner by Sony's marketing department, help me."
  11. Like
    sunyata got a reaction from jonpais in Sony A7S - 4K sample video   
    He's blinking Morse code.. "I'm being held prisoner by Sony's marketing department, help me."
  12. Like
    sunyata got a reaction from jpfilmz in Calling all colourists - Grade Panasonic GH4 4K ProRes next to Arri Alexa 2K ProRes   
    Yea, I hear your frustration. I think there is still some confusion about removing artifacts with some conversion workflow, but I don't want to  beat a dead horse. People will just need to get their hands on the footage (the source from camera footage) and give it a shot.
     
    We had a studio that shall go nameless (but the name rhymes with Disney) once deliver footage to us as 8bit prores! So we "had" to work with it.. it took maybe 10x the amount of work because you can't it's more challenging to: camera track, planar track, color key, degrain.. it's just wrecked it's degraded once it goes to 8bit. the information is not there to recover, ever, not there... no matter what your subsampling scheme is.. for good... a black spot stays black, even if it goes from [0,0,0] black to [0.0] black .... it's still black! So when you grade that footage, those artifacts come back.
     
    But I agree, it's interesting to see what Panasonic is doing. I kinda wish vendors were focusing more on nice 1080 though, less on selling 4k TV's. To be honest, 4k is about 2k too much IMO, unless you're making a movie.
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