Jump to content

jcs

Members
  • Posts

    1,839
  • Joined

  • Last visited

Everything posted by jcs

  1. jcs

    which headpones?

    The 252S uses a 12v adapter, found a few online which are supposed to work with it. The seller recommended a 100v to 110/120v converter, so I got that for now. Thanks for the Stax info, sounds like you're not ready to part with yours yet
  2. @HelsinkiZim I think you're right about 4K and sensor size. Marketing folks need something to differentiate new products, and making things 'more', such as more pixels, or a larger sensor, greater dynamic range, more low light (higher ISO) performance, or higher frame rates, is what helps them sell products. Sony is a master at this. Canon and ARRI, on the other hand, focus on color (and ARRI is king of DR). RED pioneered 'more-ing' resolution and frame rates, plus their cameras are a techno-nerd's dream of hyper-complexity, kind of the opposite of ARRI which is comparatively very simple and just works (my preference). One thing I don't recall seeing very often is 'more'd' color science. It's like they don't want to point out that their previous color science wasn't very good, and then quietly improve it with each iteration (e.g. Sony and Panasonic). RED fessed up recently and completely rewrote their image processing pipeline and color science: http://www.red.com/news/upgrade-your-workflow-with-ipp2-reds-new-image-processing-pipeline . Highlight processing and skintones are much improved. Not yet up to ARRI levels, though impressive they were able to do this without hardware changes. ARRI looks amazing for DR/highlights partly due to their dual read-out ALEV III sensor. They gotta give us 'more' or improve something else we wouldn't 'need' to upgrade our gear Content is of course king, time to get back to work
  3. @tupp they're calling it large format and full frame in this press release, which I think is fair(-ish) relative to the industry standard Super35 http://www.panavision.com/panavision-announces-new-large-format-digital-camera: They're pushing it a bit with the repetition of 'large format' when it's not even medium format (just a hair over full frame). Panavision gear is amazing and they have a wonderful history, it's unfortunate that marketing folks are driven to spin things in hopes of increasing sales, including doing equivalence tests wrong to demonstrate an advantage of one format over another as posted in a prior link. Looks like a decent selection of FF lenses cover Red Weapon 8K / DXL, including some from Zeiss, Schneider, and Canon CN-E (a starter list from Phil Holland): http://www.reduser.net/forum/showthread.php?140564-RED-Weapon-8K-Lens-Coverage-Information The Kipon FF MF is cool if will work with one's selection of MF lenses, though someone just posted some quality and compatibility issues in that old thread. FF seems to be the sweet spot right now for lens options- the standard for still photography for so many years.
  4. Cross out One write in Weapon 8K and you're in biz (what archeological dig site was that found, https://en.wikipedia.org/wiki/G%C3%B6bekli_Tepe ? )
  5. jcs

    which headpones?

    Thanks! Yeah it's fun discovering new gear and finding it amazing. When it comes to audio, it motivates us to get out the 'old' music and listen again. And you hear things you never heard before, hear and understand lyrics which now have totally different meaning, so cool. Not quite ready to get CDs out and re-encode them as FLAC yet lol (think I encoded everything at max bitrate (AAC/MP3) back when I encoded all the CDs). Doing a shoot tomorrow, will use the new Focal Listen's when editing. I just ordered the Stax 3100 kit from Japan ($700). That's a great deal for your 313/303. Might be interested- how old is it?
  6. And you can go even wider, 10.5mm F.95 http://www.mirrorlessons.com/2015/07/07/extra-fast-extra-wide-the-voigtlander-10-5mm-f0-95-review/
  7. @fuzzynormal @noone take a look at the Voigtlander F.95 options for M43
  8. Yeah it's pretty neat, like an A7S II on steroids and PCP. Uh, yeah, sure, that's not only Area 51 but specifically S4, where they test out the low flight characteristics of reverse-engineered space saucer shipmobiles. The one in the video is the 'sport model' Bob Lazar spoke of I did a photoshoot in Sedona recently, and when looking for places to shoot, saw ads for UFO Tours, which guaranteed(!) sightings. I watched a video showing what the experience was like, and the tour guide was yelling- 'look there's one now!!' and people can be heard gasping in the background and asking questions for confirmation 'is that really a UFO' or something and they guide yelled 'yes!!'. I waited for the UFO to 'take off' and go up but it never did. Guess they had to use an ATV or Jeep and couldn't afford or handle the complexity of a drone for their UFO hoax tour. It's folks like these who give the real UFOs* and folks reporting them a bad name * advanced technology, most likely from government sources on Earth, with super cool advanced flight properties, possibly including mass reduction effects to allow for rapid accel and sharp turns etc. BTW there's a cool documentary where the US government encourages misinformation promoting aliens to cover up govtech, Mirage Men http://www.imdb.com/title/tt2254010/
  9. @kaylee right on, then you're closer to closin'
  10. The Red Weapon 8K sensor is slightly wider than FF, and many FF lenses can be used: http://blog.abelcine.com/2015/07/23/red-weapon-8k-lens-options/. The Panavision DXL http://www.panavision.com/panavision-announces-new-large-format-digital-camera , while able to use MF lenses is still honestly marketed as a full frame sensor. For decent quality digital acquisition, I think the ARRI 65 is the only MF game in town right now. And again, the only reason they went that big was to re-use the ALEV III sensor and it's associated pixels and processing. Here Panavision's rep makes it clear he doesn't understand equivalence by not adjusting the aperture and ISO correctly (I hope this is not on purpose to sell large format products and services), Part 1 at 4:30: http://www.panavision.com/panalab-feature/large-format-lens-variations. The only reasons to use larger formats is resolution, bigger pixels, preservation of color science and image processing (ARRI 65), and available lens options (though for MF is quite limited compared to Super35, only a handful of lenses can be used with the ARRI 65). A quick search: didn't find any MF zoom lenses usable with the ARRI 65? Guess they use a teleconverter and adapter to use Super35 zooms on the ARRI 65 (reverse Speed Booster ). EDIT: there's at least 1, lol a 50-110 http://www.ibe-optics.com/en/portfolio-item/arri-alexa-65-optik/ and 8 primes.
  11. jcs

    which headpones?

    The Focal Listen's arrived today and are excellent, a very nice upgrade from the ATH-M50 (until I get to know them better, will still check mixes on the M50s). https://www.amazon.com/Focal-Listen-Closed-Over-Ear-Headphones/dp/B01H2NDPZY/ They work well directly into the iPhone and are stellar with the DAC and headphone amp in the Sound Devices USBPre2 (they don't include a 1/4" adapter if your DAC/amp requires one + the cable's a little short; ordered an extension). Super isolating, almost like active noise cancelling headphones. For mixing this means you can work at very low volumes and hear amazing detail, saving your hearing long term. Listened to Pink Floyd The Dark Side of the Moon and Animals today for the first time in years, incredible! I'll post more after a few days of use.
  12. I don't know, do the math yourself and see.
  13. Sure it's an advantage if you don't have access to equivalent lenses in other formats. The Hasselblad H6D 100C has dramatic rolling shutter, probably better off using a focal reducer or equivalent lenses on a camera with less RS, right? Right now I'm only aware of the ARRI 65 providing decent video with native MF lenses. No one disputes that if one has access to lenses with special properties not available in other formats they are useful. For example if one has access to cheap vintage MF lenses but not modern fast FF lenses, a focal reducer can give new life to those MF lenses. Such a setup won't likely have the same level of quality as a modern fast FF lens, however the artifacts might be pleasingly artistic and useful.
  14. http://techaeris.com/2017/04/09/night-vision-camera-iso-range-5000000/
  15. Use the Equivalence math to compute the lenses and settings needed, or you can play with something like this: http://dofsimulator.net/en/ If you find cases where currently lenses don't exist, you can perhaps use focal reducers to create what you are looking for. The composite focal reducer + lens is a new lens. If you are asking do physically larger lenses have special properties, then you should be able to characterize those properties with math and physics. Meaning, as lens size grows, these properties change/increase in a predictable way from the math and physics. For example, a .1" diameter primary/external lens (to accomodate maximum aperture size) would have a small effect and a 10" diameter (to accomodate max. aperture) would have a large effect, with intermediate lenses behaving as predicted. So you could predict these properties with equations using the physical size of the maximum aperture diameter (and associated front lens size) as input to the output transfer function. However, in order to get equivalent FOV and DOF, a larger physical aperture has to move further away from the imaging plane (increased focal length), so we've just moved the aperture (and lens front) closer to the subject. If a generalized property of the glass was doing something interesting with photons based on physical scale, it should be possible to test the theory for which equations could be developed to make predictions and used in computer simulations etc. If so, after all these years why hasn't anyone done these tests? They would be very valuable to folks selling physically larger lenses (maximum aperture) if the properties were interesting, pleasing, etc. In any case an expert in glass/optics might have more insight. "DOF rolloff" isn't specific to lens size/scale but rather lens characteristics, such as using or acting like an apodization filter.
  16. @tupp ok cool we are in agreement, sensor size has no effect by itself on the captured image, it's all due to optics alone.
  17. @tupp every single example where you state there's a difference between the two images is related to optics, not sensor size, or the tester didn't/couldn't set the systems up for equivalence. The differences between the Fujinon lenses is one has the APD filter (https://en.wikipedia.org/wiki/Apodization) and the other doesn't, which explains the difference in bokeh. Nothing to do with sensor size. Are you familiar with the scientific method? https://en.wikipedia.org/wiki/Scientific_method. Your conjecture is as sensor size gets larger <insert specific properties which can be tested and characterized here>. Your Null Hypothesis is thus, "Sensor size has no effect by itself on the captured image". Now do your experiments using the scientific method. Do you own a camera and lenses? If not can you rent them? I only ask because you've never posted any of your own work. In your experiments you'll try your hardest to show that sensor size has no effect, eliminating as many variables as possible. Only after rigorous testing to try to eliminate sensor size as having an effect, can you then reject your null hypothesis and form a predictable theory which accurately describes the effects sensor size has on the captured image, and most importantly your new theory will be able to make predictions which can then be tested to further validate that your understanding of the system is correct. And that, brother, is currently the best process human beings have for understanding what's real, or not.
  18. @kaylee wouldn't the card for a filmmaker be a reel SD card?
  19. jcs

    which headpones?

    Here's what I learned at CanJam 2017: https://brightland.com/w/the-best-headphones/ Such a great idea and nice meeting people and trying gear in person!
  20. I used to do that too, and still bring business cards and give and receive as needed. However, I've found that follow-ups happen more often when email/phone is traded right into phones vs cards. What we need is an instant contact app (for iOS and Android), where you can instantly trade contact info (found one based on QR codes, figured they're be more: https://thenextweb.com/apps/2011/01/23/5-mobile-apps-that-could-kill-business-cards/#.tnw_7W40fa1m . Why'd google acquire and close down Bump, then provide no replacement?). @Cassius McGowan if both parties in a hurry, sure cards are fine, however cards get lost, and both parties know the other is serious when typing directly into their phones. Another thing we do is write a little note in the phone contact which is also helpful later on. Again, when attending a show as a vendor, capturing emails via iPad etc. is immensely helpful and a time saver not having to go through all the cards later and type everything in. Having a raffle or drawing can also be helpful for engagement. I went to a trade show today and collected cards from vendors and used them to help write up a blog post. This is different than doing deals in the tech world, however- either it happens fast with email/phone right away or not at all has been my experience.
  21. jcs

    which headpones?

    Putting it all in the blog post- will post here shortly once I get out of here and finish it
  22. Wordpress and the default theme will work, however Wordpress IMO is a bit of a mess (I'm a long time developer (C/C++/OBJC desktop, embedded, and iOS (+ Android NDK (C++)). I've successfully avoided web development because all the tools are a mess: HTML, CSS, Javascript (HTML5), PHP etc.). Additionally C/C++/OBJC is more profitable. I built our websites with Wordpress and a bunch of plugins, but would much prefer something else. Unfortunately, for quick development without having to write web code, it's currently the least bad of all the options (jQuery, bootstrap, angular.js and sass are OK, but they're for writing code, not WYSIWYG). You could try something like http://www.wix.com which would work for a basic site with no coding, especially if you start with a template close to what you want. Honestly business cards are a waste of time, money, and paper. As a vendor it's best to collect emails, and when you meet people you want to connect with, get their email and/or phone number, then follow up. I've gotten work from LinkedIn (tech), so it's worthwhile. In LA especially, film work really requires face-to-face networking in addition to an online presence to show your work.
  23. jcs

    which headpones?

    Bummer, however your tip paid off, have lots to report! I'm writing everything up to share on a few sites and will probably do a video review later this week once they arrive (ordered online). I'm planning to get one or two more brands for different uses, will discuss everything in the write up (I did get to try the Koss ESP950 electrostatics too).
  24. jcs

    which headpones?

    Thanks @HockeyFan12 for the tip on CanJam SoCal- very cool event! Being able to audition so many headphones in one place is incredibly useful. I was even able to sneak in a listen to the $55k Sennheiser HE-1's! I ended up buying a pair of headphones I would never have purchased had I not heard them in person.
  25. jcs

    which headpones?

    Cool, I see Audeze and Stax will be there, some VR / 3D audio gear too, I'll stop by and check it out. Steve gets it right, lol:
×
×
  • Create New...