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Jimmy G

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  1. Like
    Jimmy G got a reaction from kaylee in The GH6 is a triumph of practical upgrades (especially for shooting travel)   
    Hi Kye, wow, what an in-depth look into this camera...methinks you're very interested to the point of becoming a future owner?! 😉
    I'll reserve my points to "output quality" as each of the internal mechanical aspects and features of the camera will appeal (or not) differently to individual users.
    To that end, you've covered quite nicely (and better than I have been able to do) the need for wider dynamic range when shooting outdoor environments...the f/stop range on a typical sunny day is just too much for 8-bit Rec709 to contend with for those of us who need/desire/require that the sum of our frame includes everything from the brightest clouds and specular highlights to the detail and vibrancy going on in the shaded regions. Our eyes capture all of that and I have never been ashamed to ask for and seek out equipment that gets me closer to being able to capture that same natural view. I laugh every time I hear/read someone say that this is niche...no more niche than what I came to expect from my old love, Kodachrome 25! LOL
    Getting to understand how HDR and 10-,12- (14-, and 16-) bit imaging can help "get me there" has been a challenge up to now...hard for any of us to realize the benefits of these things when viewed on SDR monitors! Ha! Enter my new M1 Max Macbook Pro with its HDR panel, I've devoted this year to finally educating myself on what is possible (and desirable) with the 10-bit footage I've been accumulating with my S1 for the past few years...in fact, I've decided to hunt down a used Ninja V just so I can become familiar with using 12-bit ProRes RAW at learning what it might and might not be "most practical for" for my style of nature shooting. Clearly, not every situation calls for such bit-depth or, even, DR and learning those lessons through shooting will help educate and inform me as to when varying codec choices are called for...all the more reason for my wanting it all internal to the camera (GH6 and future releases), call up a Custom setting and off one goes, er, shoots, no fuss no muss (f*** external recorders, really, I mean that from the bottom of my heart, Panasonic).
    Anyhoo, I thought this article and the accompanying two videos would be of particular interest to you (and to all our fellow folks trying figure out the whens and whys and needs for HDR and high bit-depth)...a two-part interview with Kevin Shaw, CSI and founder of the International Colorist Academy (ICA), where he demonstrates where and how the benefits of HDR acquisition come into play...
    Is 2022 the Year You Buy Into HDR? - Frame.io Insider
    https://blog.frame.io/2022/01/17/hdr-in-2022/
    ...a college-level education from someone who knows. 😉
     
  2. Like
    Jimmy G got a reaction from sanveer in Panasonic GH6   
    Thanks for that panel discussion link, truly informative!
    The section that I most wanted answered was regarding whether or not the USB-C port will be able to provide both power and data transfer (e.g. power the unit while recording RAW to an SSD) simultaneously? At the 55:50 mark Panasonic's Matt Fraser goes to check it out with the camera he has but the subject never gets revisited in the video.
    If it does turn out to be functional/possible then I would hope that either Panasonic or some 3rd-party folks might also be working on some sort of SSD/battery combo device to fill that need and provide for that functionality? Maybe something in a battery grip design with a short USB-C cable that will both record-from and power-the-unit at the same time?!
    To muse further...had they added an HDR rear display (ala Atomos, BlackMagic, etc.), it would then have negated the need for a cumbersome Ninja or VideoAssist for monitoring (?), would make for a tidy and stealthy package for us folks who like-to and need-to travel as light as possible!
    ____________________________
    Regardless of my hopeful ramblings...the camera is shaping up to be a 10-bit internal recording beast, it will be nice to stretch my creative impulses with locational natural-lighting possibilities with the extra DR and bit-depth and see how it helps out in those brutal imaging and lighting environments outdoors (i.e shooting into the sun or against excessive specular highlights, etc.). Fingers still crossed on the whole internal RAW thing (ala Nikon, Canon, etc.) coming to be for this camera. 🙂
     
  3. Like
    Jimmy G got a reaction from kye in Panasonic GH6   
    Good to have that confirmation of what CineD had been reporting...

    ...and addresses Kye's previous questions...
    ...good to know for sure...thanks! 🙂
  4. Like
    Jimmy G reacted to sanveer in Panasonic GH6   
    At 27:45, he mentions 16-bit RAW. Which me6snd that the signal strength (can be further widened and?) can help with exposure latitude making it as good (if better than) RAW codecs on larger cameras. Though he mentions that it's for photo (for now?). Maybe, if it does external 16-bit RAW, that would be superb. Also, I hope Panasonic releases a much thinner version of that awful looking Yagn, for real-time compressions into an external RAW recorder (SSD) at 1:3 to 1:18, thereby circumventing that RED patent and also having a recorded for quicker turnaround. 
     
  5. Like
    Jimmy G reacted to hyalinejim in Panasonic GH6   
    From official specs it looks like 100 is base ISO for regular profiles:
    [Normal]
    Dynamic Range Boost OFF (Base ISO 100): Auto / 50 (Extended ISO) / 100-12800
    Dynamic Range Boost ON (Creative Video Mode) (Base ISO 800): Auto / 800-12800

    [V-Log]
    Dynamic Range Boost OFF (Base ISO 250): Auto / 125 (Extended ISO) / 250-12800
    Dynamic Range Boost ON (Creative Video Mode) (Base ISO 2000): Auto / 2000-12800

    [Hybrid Log Gamma]
    Dynamic Range Boost OFF (Base ISO 250): Auto / 250-12800
    Dynamic Range Boost ON (Creative Video Mode) (Base ISO 2000): Auto / 2000-12800
     
  6. Like
    Jimmy G got a reaction from webrunner5 in Panasonic GH6   
    The kind folks at CineD report (from their testing) that the two base ISOs for the GH6 are 250 and 2000. The difference between those values is, conveniently (i.e. no fractions), 3-stops (250>500>1000>2000). So I would think the easiest field practice would be to dial in one's exposure settings at ISO 250, slap on a 3-stop ND, and up the ISO to 2000 to put the camera in wide dynamic range mode. No math worries there. 🙂
    Of course, a camera using Panasonic's own organic sensor with its reported built-in voltage-controlled variable-ND that maybe-will automatically-compensate the internal-ND for ISO-changes to maintain-EV-settings would be super...but >cough< they decided not to put that sensor in this camera. 😉 Maybe they're planning something "truly big" for the Lumix 30th anniversary in 2031?! Ha!
  7. Like
    Jimmy G got a reaction from Juank in Panasonic GH6   
    The kind folks at CineD report (from their testing) that the two base ISOs for the GH6 are 250 and 2000. The difference between those values is, conveniently (i.e. no fractions), 3-stops (250>500>1000>2000). So I would think the easiest field practice would be to dial in one's exposure settings at ISO 250, slap on a 3-stop ND, and up the ISO to 2000 to put the camera in wide dynamic range mode. No math worries there. 🙂
    Of course, a camera using Panasonic's own organic sensor with its reported built-in voltage-controlled variable-ND that maybe-will automatically-compensate the internal-ND for ISO-changes to maintain-EV-settings would be super...but >cough< they decided not to put that sensor in this camera. 😉 Maybe they're planning something "truly big" for the Lumix 30th anniversary in 2031?! Ha!
  8. Like
    Jimmy G got a reaction from kye in Panasonic GH6   
    The kind folks at CineD report (from their testing) that the two base ISOs for the GH6 are 250 and 2000. The difference between those values is, conveniently (i.e. no fractions), 3-stops (250>500>1000>2000). So I would think the easiest field practice would be to dial in one's exposure settings at ISO 250, slap on a 3-stop ND, and up the ISO to 2000 to put the camera in wide dynamic range mode. No math worries there. 🙂
    Of course, a camera using Panasonic's own organic sensor with its reported built-in voltage-controlled variable-ND that maybe-will automatically-compensate the internal-ND for ISO-changes to maintain-EV-settings would be super...but >cough< they decided not to put that sensor in this camera. 😉 Maybe they're planning something "truly big" for the Lumix 30th anniversary in 2031?! Ha!
  9. Like
    Jimmy G got a reaction from Mark Romero 2 in Panasonic GH6   
    Now you tell us?! Heck, I've been carrying on about organic sensors for weeks now and the whole time Andrew has been letting me hang myself? LOL
  10. Haha
    Jimmy G got a reaction from PannySVHS in Panasonic GH6   
    I thought this odd...
    LUMIX GH6 Launch Event + Griffin's Live Commentary - YouTube
     
    ...a Lumix "brand ambassador" doing a live, blow-by-blow simulcast during the official announcement? Thoughts?
    Disclaimer: I have zero affiliation with either Panasonic or Mr. Hammond, link posted for informational usage only.
  11. Like
    Jimmy G got a reaction from kye in Panasonic GH6   
    Well, I'm always reluctant to take early specs and speculations to heart, relying on a video blogger's "leak" and created (unsourced) simplistic graphical representation is (along with any other information being provided) guesswork, at best. Hopefully, Panasonic will be tooting their own horn with some technical background information or white paper with this camera's release. Fingers crossed on them doing so, until then I'll file the above image in my "if it can be believed" drawer.
    In the meantime, I'll be chewing on some popcorn hoping that Panasonic finally releases the dual-gain technology they've actually been working on for a long, long time...
    Image Sensors World: Panasonic 123dB WDR Organic Sensor
    http://image-sensors-world.blogspot.com/2016/02/panasonic-123db-wdr-organic-sensor.html
  12. Like
    Jimmy G got a reaction from John Matthews in Olympus OM-1   
    It will be interesting to see his follow-up video next week with the viewer's voting results, thanks for posting that link!
     
    OT - Oh my! Seeing that 500 made me laugh! LOL After filming the 7-second annular eclipse across the water from Clemson University back in '84 my brother and I barnstormed and hot-dogged our way through the Smoky Mountains in his "Fix It Again, Tony" 500 on our ride home! Talk about a youthful sense of personal indestructibility! Ahahahah!
  13. Like
    Jimmy G got a reaction from webrunner5 in Olympus OM-1   
    It will be interesting to see his follow-up video next week with the viewer's voting results, thanks for posting that link!
     
    OT - Oh my! Seeing that 500 made me laugh! LOL After filming the 7-second annular eclipse across the water from Clemson University back in '84 my brother and I barnstormed and hot-dogged our way through the Smoky Mountains in his "Fix It Again, Tony" 500 on our ride home! Talk about a youthful sense of personal indestructibility! Ahahahah!
  14. Thanks
    Jimmy G reacted to John Matthews in Olympus OM-1   
    Mike Lane is a wildlife photography who has some interesting thoughts regarding photography with long lenses and image quality.
     
  15. Like
    Jimmy G reacted to webrunner5 in Olympus OM-1   
    Well I have a Lot of experience of riding around Naples late at night in a Fiat 500 taxi, and you will notice the one in the picture has no mirror and that is for good reason, they would not have fit in the street going 65 kilometers or more at night with their lights off. Even drunk it was some damn scary stuff I tell you.
  16. Thanks
    Jimmy G reacted to androidlad in Olympus OM-1   
    It seems OM1 has really good internal NR, applied at RAW debayer level:
    https://www.geh-photo.org/post/die-om-1-im-praxistest?continueFlag=143e81367b1d01290587846ff81073b9

    Left EM1X, right OM1
     

    OM1 ISO40000, yes forty thousand.
  17. Like
    Jimmy G got a reaction from kye in Olympus OM-1   
    I was just going to post these, but you beat me to it, looks like OM Systems has set a high bar for MFT!
    I'm impressed with the noise performance and DR in this mostly-dark shoot, shadows look great to my eyes all-the-while not blowing out the streaming sunlight coming through the trees. Also, doing a frame-by-frame-advance look at the fast panning and cable cam shots it looks like rolling shutter is extremely minimal to nearly imperceptible in all but the quickest of frame travels (or maybe it wasn't there at all and I was looking at naturally bent trees?)...truly impressive. And the slow motion shots do not seem to exhibit any line-skipping/moire artifacts, so I'm guessing a true down-rezzed 4K to 1080 for the ultra-slow shots?
    Nice job, OM folks! Hopefully, Panasonic followed suit with some creative filmmakers to showcase the GH6 release next week?!
    Great times, these! 🙂
  18. Like
    Jimmy G got a reaction from Juank in Panasonic GH6   
    From my read of this article, Panasonic's, er, "dual gain" is accomplished through the use (of what they refer to as) DS-Pixels (dual-sensitivity pixel)
    STAP14003fig05_hr.jpg (JPEG Image, 669 × 414 pixels)

     
    ...as described in this article (above Citation)...
    Advanced features of layered-structure organic-photoconductive-film CMOS image sensor: Over 120 dB wide dynamic range function and photoelectric-conversion-controlled global shutter function - IOPscience
    https://iopscience.iop.org/article/10.7567/JJAP.57.1002B4
     
    What's most interesting to me is the caption to Figure 4 in that article...
    <<
    Figure 4 shows a summary of the dynamic range of several materials. The dynamic range of a common silicon image sensor is about 76 dB; however, the dynamic range of the human eyes is said to be 110 dB, including calculation in the brain. This dynamic range is far below the human eyes' capacity. Therefore, we decided to exceed the human eyes' capacity without the above problems by using the new structure of the OPF image sensor, to realize accurate and texture-rich imaging and sensing. We set our SC-WDR target to over 120 dB.
    >>
    ...again, image link from above linked paper...
    STAP14003fig04_hr.jpg (JPEG Image, 491 × 400 pixels)

    Finally, the acknowledgements from that article...
    <<
    Acknowledgments
    We would like to thank the engineers of Panasonic Semiconductor Solutions Co., Ltd., Semiconductor Business Unit and Panasonic Corporation Automotive & Industrial Systems Company Engineering Division for support in chip design.
    >>
    _____________________________
     
    FWIW, "all of the above" jibes well with Panasonic's press release from 2018...
    Panasonic Develops Industry's-First 8K High-Resolution, High-Performance Global Shutter Technology using Organic-Photoconductive-Film CMOS Image Sensor | Headquarters News | Panasonic Newsroom Global
    https://news.panasonic.com/global/press/data/2018/02/en180214-2/en180214-2.html
    ...so, maybe there is an OPF-CMOS organic sensor in the GH6 after-all...er, no "rats"?!
  19. Like
    Jimmy G got a reaction from John Matthews in Olympus OM-1   
    I was just going to post these, but you beat me to it, looks like OM Systems has set a high bar for MFT!
    I'm impressed with the noise performance and DR in this mostly-dark shoot, shadows look great to my eyes all-the-while not blowing out the streaming sunlight coming through the trees. Also, doing a frame-by-frame-advance look at the fast panning and cable cam shots it looks like rolling shutter is extremely minimal to nearly imperceptible in all but the quickest of frame travels (or maybe it wasn't there at all and I was looking at naturally bent trees?)...truly impressive. And the slow motion shots do not seem to exhibit any line-skipping/moire artifacts, so I'm guessing a true down-rezzed 4K to 1080 for the ultra-slow shots?
    Nice job, OM folks! Hopefully, Panasonic followed suit with some creative filmmakers to showcase the GH6 release next week?!
    Great times, these! 🙂
  20. Haha
    Jimmy G reacted to MrSMW in Panasonic GH6   
    Hold on, I have Albert on speed dial...

  21. Confused
    Jimmy G got a reaction from Django in Panasonic GH6   
    From my read of this article, Panasonic's, er, "dual gain" is accomplished through the use (of what they refer to as) DS-Pixels (dual-sensitivity pixel)
    STAP14003fig05_hr.jpg (JPEG Image, 669 × 414 pixels)

     
    ...as described in this article (above Citation)...
    Advanced features of layered-structure organic-photoconductive-film CMOS image sensor: Over 120 dB wide dynamic range function and photoelectric-conversion-controlled global shutter function - IOPscience
    https://iopscience.iop.org/article/10.7567/JJAP.57.1002B4
     
    What's most interesting to me is the caption to Figure 4 in that article...
    <<
    Figure 4 shows a summary of the dynamic range of several materials. The dynamic range of a common silicon image sensor is about 76 dB; however, the dynamic range of the human eyes is said to be 110 dB, including calculation in the brain. This dynamic range is far below the human eyes' capacity. Therefore, we decided to exceed the human eyes' capacity without the above problems by using the new structure of the OPF image sensor, to realize accurate and texture-rich imaging and sensing. We set our SC-WDR target to over 120 dB.
    >>
    ...again, image link from above linked paper...
    STAP14003fig04_hr.jpg (JPEG Image, 491 × 400 pixels)

    Finally, the acknowledgements from that article...
    <<
    Acknowledgments
    We would like to thank the engineers of Panasonic Semiconductor Solutions Co., Ltd., Semiconductor Business Unit and Panasonic Corporation Automotive & Industrial Systems Company Engineering Division for support in chip design.
    >>
    _____________________________
     
    FWIW, "all of the above" jibes well with Panasonic's press release from 2018...
    Panasonic Develops Industry's-First 8K High-Resolution, High-Performance Global Shutter Technology using Organic-Photoconductive-Film CMOS Image Sensor | Headquarters News | Panasonic Newsroom Global
    https://news.panasonic.com/global/press/data/2018/02/en180214-2/en180214-2.html
    ...so, maybe there is an OPF-CMOS organic sensor in the GH6 after-all...er, no "rats"?!
  22. Thanks
    Jimmy G reacted to sanveer in Panasonic GH6   
    "Latitude
    Dynamic Range Boost ON: 13+ stops (V-Log) Dynamic Range Boost OFF: 12+ stops (V-Log)Still Image Recording file formatJPEG (DCF, Exif 2.31), RAWAspect ratio4:3 / 3:2 / 16:9 / 1:1File size (Pixels)4:3: 5776x4336(L) / 4096x3072(M) / 2944x2208(S) / 11552x8672(XL) / 8192x6144(LL)3:2: 5776x3848(L) / 4096x2728(M) / 2944x1960(S) / 11552x7696(XL) / 8192x5464(LL)16:9: 5776x3248(L) / 4096x2304(M) / 2944x1656(S) / 11552x6496(XL) / 8192x4608(LL)1:1: 4336x4336(L) / 3072x3072(M) / 2208x2208(S) / 8672x8672(XL) / 6144x6144(LL)Image qualityRAW / RAW+Fine / RAW+Standard / Fine / StandardColor spacesRGB, AdobeRGBMotion Picture Recording file formatMOV: H.264/MPEG-4 AVC, H.265/HEVC, Apple ProResMP4: H.264/MPEG-4 AVC, H.265/HEVCAudio formatMOV: LPCM (2ch 48kHz/24-bit, 96kHz/24-bit) (4ch 48kHz/24-bit, 96kHz/24-bit)MP4: AAC (2ch 48kHz/16-bit)System frequency59.94Hz / 50.00Hz / 24.00HzImage area of videoFull / Pixel by PixelViewfinder TypeOLED Live View FinderPixelsApprox. 3.68 million dots
     
    Dynamic Range Boost ON / OFF
    ISO sensitivityStill image:[Normal]: Auto / 50 (Extended ISO) / 100-25600[V-Log]: Auto / 125 (Extended ISO) / 250-12800Motion picture:[Normal]:Dynamic Range Boost OFF (Base ISO 100): Auto / 50 (Extended ISO) / 100-12800Dynamic Range Boost ON (Creative Video Mode) (Base ISO 800): Auto / 800-12800[V-Log]:Dynamic Range Boost OFF (Base ISO 250): Auto / 125 (Extended ISO) / 250-12800Dynamic Range Boost ON (Creative Video Mode) (Base ISO 2000): Auto / 2000-12800[Hybrid Log Gamma]:Dynamic Range Boost OFF (Base ISO 250): Auto / 250-12800Dynamic Range Boost ON (Creative Video Mode) (Base ISO 2000): Auto / 2000-12800 (Standardoutput sensitivity)"
     
    Curious to know how effective the dynamic range boost would be. 
  23. Thanks
    Jimmy G reacted to hoodlum in Panasonic GH6   
    Here are the full specs. 
     
    https://www.scribd.com/document/559418125/Panasonic-Lumix-GH6-MFT-Camera-Full-Specifications
     
  24. Like
    Jimmy G got a reaction from 92F in Lenses are putting a practical limit on DR to 14 stops?   
    Not much to unpack here at all...
    As I noted in that other thread, the Imatest article is a PSA (of sorts) to help educate its customers about "exaggerated" DR claims being made while using their (Imatest) equipment. Their "Key Takeaways" section at the bottom of that link pretty much says it all.
    😉
  25. Like
    Jimmy G got a reaction from Nikkor in Lenses are putting a practical limit on DR to 14 stops?   
    Not much to unpack here at all...
    As I noted in that other thread, the Imatest article is a PSA (of sorts) to help educate its customers about "exaggerated" DR claims being made while using their (Imatest) equipment. Their "Key Takeaways" section at the bottom of that link pretty much says it all.
    😉
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