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drm

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  1. Like
    drm reacted to nathlas in Blackmagic Pocket Cinema Camera 4K   
  2. Like
    drm got a reaction from majoraxis in Blackmagic Pocket Cinema Camera 4K   
    Thanks @webrunner5 for this article. This was fascinating reading.
    So, here are my big picture conclusions:
    This is only an issue at really wide apertures (1.4+) The sensor stack on the P4K is 1.5mm thinner than normal M4/3, so if you are using an adapter without optics, the P4K should perform better than other M4/3 cameras because its sensor stack is close to the same thickness as a normal SLR.  The Sigma 18-50 f/1.8 lens is pretty much immune from the problem because it has an exit pupil distance of 150mm.  MOST importantly (and unexpectedly) the P4K may show problems with *native* M4/3 lenses at very wide apertures because those lenses were designed to use a 4mm filter stack but the P4K uses one that is 2.5mm. Luckily, I have a Voigtlander 25mm f/0.95 lens and P4Ks + GH5/GH5s cameras. When I get time, I will compare the P4K vs. the GH5s wide open and look for differences. If there are differences, it will probably be on the edges of the images. I would bet that the differences would be most visible in photos, but obviously the P4K doesn't do very good photos...  
    So, Blackmagic designed in a difference (filter stack = 2.5mm instead of 4mm) that would likely make the P4K perform better with adapted lenses, but also likely caused it to perform worse with native M4/3 lenses...weird. 
  3. Thanks
    drm got a reaction from leslie in Blackmagic Pocket Cinema Camera 4K   
    Thanks @webrunner5 for this article. This was fascinating reading.
    So, here are my big picture conclusions:
    This is only an issue at really wide apertures (1.4+) The sensor stack on the P4K is 1.5mm thinner than normal M4/3, so if you are using an adapter without optics, the P4K should perform better than other M4/3 cameras because its sensor stack is close to the same thickness as a normal SLR.  The Sigma 18-50 f/1.8 lens is pretty much immune from the problem because it has an exit pupil distance of 150mm.  MOST importantly (and unexpectedly) the P4K may show problems with *native* M4/3 lenses at very wide apertures because those lenses were designed to use a 4mm filter stack but the P4K uses one that is 2.5mm. Luckily, I have a Voigtlander 25mm f/0.95 lens and P4Ks + GH5/GH5s cameras. When I get time, I will compare the P4K vs. the GH5s wide open and look for differences. If there are differences, it will probably be on the edges of the images. I would bet that the differences would be most visible in photos, but obviously the P4K doesn't do very good photos...  
    So, Blackmagic designed in a difference (filter stack = 2.5mm instead of 4mm) that would likely make the P4K perform better with adapted lenses, but also likely caused it to perform worse with native M4/3 lenses...weird. 
  4. Like
    drm reacted to webrunner5 in Panasonic S1 V-LOG -- New image quality king of the hill   
    Speaking of the S1. Rolling Shutter test.
    https://***URL not allowed***/panasonic-lumix-s1-rolling-shutter-test/
  5. Like
    drm got a reaction from KnightsFan in Z Cam E2 will have ONE HUNDRED AND TWENTY FPS in 4K??   
    I use the GH5, GH5s, & P4Ks to livestream (multicam) many times per week and have produced literally hundreds of episodes of content with them. I used to livestream with the JVC LS300s, until I sold them all, due to poor dynamic range and poor low light performance. I am admittedly biased as I get paid to do this professionally.
    You can live stream with all sorts of equipment, if you know what you are doing. You can even livestream with many of the action cams if you wanted to do so.
    I wonder how successful they will be if they intend the camera be used for live streaming. I suspect that low-end streamers will use their phones and people who are doing this more professionally will go right past this camera for something better. For example, a low-end streamer could use a Canon M50 + encoder and have about the same amount of money invested. (not apples-to-apples, but similar $)
    When I am selecting a camera to use on paying live broadcasts, a *lot* more goes into the decision that just the cost of the camera. I am certainly open to looking into the camera further. Perhaps it would be great for that purpose. For me, though, I think I would just purchase the regular E2 (which I believe also streams) to get the better image quality.
  6. Like
    drm got a reaction from webrunner5 in Blackmagic Pocket Cinema Camera 4K   
    Thanks @webrunner5 for this article. This was fascinating reading.
    So, here are my big picture conclusions:
    This is only an issue at really wide apertures (1.4+) The sensor stack on the P4K is 1.5mm thinner than normal M4/3, so if you are using an adapter without optics, the P4K should perform better than other M4/3 cameras because its sensor stack is close to the same thickness as a normal SLR.  The Sigma 18-50 f/1.8 lens is pretty much immune from the problem because it has an exit pupil distance of 150mm.  MOST importantly (and unexpectedly) the P4K may show problems with *native* M4/3 lenses at very wide apertures because those lenses were designed to use a 4mm filter stack but the P4K uses one that is 2.5mm. Luckily, I have a Voigtlander 25mm f/0.95 lens and P4Ks + GH5/GH5s cameras. When I get time, I will compare the P4K vs. the GH5s wide open and look for differences. If there are differences, it will probably be on the edges of the images. I would bet that the differences would be most visible in photos, but obviously the P4K doesn't do very good photos...  
    So, Blackmagic designed in a difference (filter stack = 2.5mm instead of 4mm) that would likely make the P4K perform better with adapted lenses, but also likely caused it to perform worse with native M4/3 lenses...weird. 
  7. Like
    drm reacted to docmoore in Blackmagic Pocket Cinema Camera 4K   
    It is referred to as sensor stack ...
    https://petapixel.com/2014/06/10/sensor-stack-thickness-matter/
    It is why many Leica M wide angle lenses perform so poorly on Sony A7 cameras ... 
    Here is a link to a video by Filippo Chiesa ... BMPCC4K and Speedbooster
    ... read his comments on AC and glow .... may be related to the stack thickness.
    I assume that if you use a SB it should be designed for the camera in question ... otherwise you lose the benefits of the great glass you
    have mounted ... the Metabones smart adapter without glass avoids the problem but you lose speed and boost in angle of view.
  8. Like
    drm got a reaction from webrunner5 in Z Cam E2 will have ONE HUNDRED AND TWENTY FPS in 4K??   
    LOL...Filmic Pro log profile on an iPhone can take some *really* nice footage if you try. You can't get depth of field, but with some NDs you can get some great footage. 
  9. Like
    drm got a reaction from Emanuel in Z Cam E2 will have ONE HUNDRED AND TWENTY FPS in 4K??   
    LOL...Filmic Pro log profile on an iPhone can take some *really* nice footage if you try. You can't get depth of field, but with some NDs you can get some great footage. 
  10. Like
    drm got a reaction from graphicnatured in Blackmagic Pocket Cinema Camera 4K   
    I have used my P4Ks with the current Metabones 0.71x adapter with many different lenses (usually the Sigma 18-35) without issue. I have not noticed a single issue with the IQ when using the current adapter. I would be very interested to test my current adapters and the new ones side by side. To hear the marketing speak from Metabones, the newest adapter is the greatest thing ever   Having a longer mounting plate would be cool, but I just got the mount for my cage and it holds the adapter well.
    The existing M43 Metabones adapters work well with the P4K. Will the new Metabones adapters work better? Probably. But, it isn't like you have to run out and purchase one. The existing ones work well.
  11. Thanks
    drm got a reaction from Kisaha in Blackmagic Pocket Cinema Camera 4K   
    I have used my P4Ks with the current Metabones 0.71x adapter with many different lenses (usually the Sigma 18-35) without issue. I have not noticed a single issue with the IQ when using the current adapter. I would be very interested to test my current adapters and the new ones side by side. To hear the marketing speak from Metabones, the newest adapter is the greatest thing ever   Having a longer mounting plate would be cool, but I just got the mount for my cage and it holds the adapter well.
    The existing M43 Metabones adapters work well with the P4K. Will the new Metabones adapters work better? Probably. But, it isn't like you have to run out and purchase one. The existing ones work well.
  12. Like
    drm reacted to Eduardo Granadsztejn in Blackmagic Pocket Cinema Camera 4K   
    Well, well...
    https://www.metabones.com/article/of/SpeedBooster_for_BMPCC_4K?fbclid=IwAR1cX0wTLMDww7q6-fhs513CYCDMg7Hf1QA2AcbA8oZjyZnR5jBsmNYCdn4
  13. Like
    drm got a reaction from BTM_Pix in Blackmagic Pocket Cinema Camera 4K   
    Great work! How much lag is there in transmitting like that? I suspect just a few MS, but just wondering.
  14. Like
    drm got a reaction from Kisaha in Blackmagic Pocket Cinema Camera 4K   
    I use the Metabones 0.71x and it works perfectly. I use it mostly with the Sigma 18-35, but it works well with other lenses. My understanding was the P4K version was going to be somewhere between the 0.64x (which can vignette) and the 0.71x and perhaps have a few other features.
  15. Like
    drm reacted to Video Hummus in Canon rush to reassure investors as camera profits plunge 64%   
    To document our folly.
  16. Haha
    drm got a reaction from Kisaha in Canon rush to reassure investors as camera profits plunge 64%   
    I agree that there is an opportunity for an improved quality of life if most of the repetitive jobs were handled by automation. It is the change over period that concerns me.
    That glimmer of hope is what prevents me from moving to a cabin in the Montana wilderness.  Fortunately, most of these things are very slow, so you can prepare.
    The moral of the story for me is don't plan a career in an field where automation is coming, unless you plan on creating or repairing the automation  
  17. Like
    drm got a reaction from andrgl in Canon rush to reassure investors as camera profits plunge 64%   
    This happens to many big market leaders when the market changes. They try to protect their old business, rather than jumping in on the new opportunity. The list of times where this has happened is truly massive: IBM - PCs, Microsoft - anyone remember Windows Mobile????, the list goes on and on.
    Canon's imaging business (and everyone else's) is being eaten by cell phone cameras. Cell phone imaging systems are rapidly improving and are even doing things that the legacy cameras can't do, like allowing people to produce live video & computational imaging. The cell phone cameras are going to continue to improve over time. SLR type cameras will hang around because there are people who care about image quality, but the camera market will be a tiny fraction of its former size. All but the most dedicated will just use their mobile device. I would hate to have my bonus tied to the point and shoot camera market in the future...
  18. Like
    drm got a reaction from webrunner5 in Canon rush to reassure investors as camera profits plunge 64%   
    LOL...Andrew, you are a comedian too  
    I don't think that I have mentioned this on here, but I have a Ph.D. in Finance & was a Finance professor for many years. In addition to my media company, I teach people how to raise capital and grow their businesses through innovation and strategy.
    I have long said that automation (robots, AI, etc.) is going to devastate certain portions of the job market, just like smartphones hit the camera markets, but many times worse. There are many industries where a person just won't be able to work when automation gets going. A current example is the push for $15/hr restaurant workers in the U.S., which just means there will be more machines & less workers (see the kiosks at McDonalds & self checkouts at Walmart, etc.). In the legal field, computer programs are already able to analyze documents in ways that humans simply can't. Businesses can already purchase Baxter, which is a ~$20k robot that you can show a task and he will repeat it (think assembly line) for a rough cost of $3/hr. The A.I. revolution is going to cause massive upheaval in society over the next 50 yrs. 
    If you want a vision of the future, just look at the conditions today in Chicago, Baltimore, and other cities where the manufacturing jobs all left. When the service jobs leave, what's left? Mad Max.
  19. Like
    drm got a reaction from Mmmbeats in Canon rush to reassure investors as camera profits plunge 64%   
    I think that smartphones are a huge part of the changing market. People are certainly switching to smartphones from other types of cameras. The question is from what?? 
    So, I had an idea to investigate further. Keep in mind that this is *purely* anecdotal and may not apply to the overall market. I pulled this list of most commonly used cameras from flickr.com and sorted them by the average number of daily users.
    NINE of the top ten cameras were Apple iPhones. The Canon 5D MIII comes in at #7, with the Nikon D750 close behind at #11. Eleven of the top 20 were smartphones. The first point/shoot camera is #68. So, the P&S cams have been completely killed by phones. The DSLRs? Not so much. But, mirrorless is a blip on the radar so far.
    Here are the top 15. I attached the entire list as a PDF.
    What do you guys think?

     
      
     
    Camera usage on Flickr - 2019-07.pdf
  20. Like
    drm got a reaction from webrunner5 in Canon rush to reassure investors as camera profits plunge 64%   
    I think that smartphones are a huge part of the changing market. People are certainly switching to smartphones from other types of cameras. The question is from what?? 
    So, I had an idea to investigate further. Keep in mind that this is *purely* anecdotal and may not apply to the overall market. I pulled this list of most commonly used cameras from flickr.com and sorted them by the average number of daily users.
    NINE of the top ten cameras were Apple iPhones. The Canon 5D MIII comes in at #7, with the Nikon D750 close behind at #11. Eleven of the top 20 were smartphones. The first point/shoot camera is #68. So, the P&S cams have been completely killed by phones. The DSLRs? Not so much. But, mirrorless is a blip on the radar so far.
    Here are the top 15. I attached the entire list as a PDF.
    What do you guys think?

     
      
     
    Camera usage on Flickr - 2019-07.pdf
  21. Thanks
    drm got a reaction from Kisaha in Sony A7R IV / A7S III / A9 II to feature 8K video, as new 60MP and 36MP full frame sensor specs leak   
    Speaking of sound, check out the new Zoom F6. The new wide dynamic range they have introduced will shake up the market. It, of course, won't be built as well as Sound Devices or Zaxcom, but Zoom are certainly innovating. Curtis Judd has a review on YouTube about it.
  22. Like
    drm got a reaction from webrunner5 in Canon rush to reassure investors as camera profits plunge 64%   
    Japan has an even more serious problem... demographics. If you look at the demographics in Japan (and other "rich" countries), the demographics are terrifying for the longer term business horizon. Japan overall is aging quickly. Over 28% of the population is older than 65,  the avg. number of children per woman is 1.4, and they are having 400k more deaths than births each year. This has resulted in big labor shortages, with it being reported that there are about 1.6 vacancies for each applicant. They are also not keen on the idea of fixing their demographic problem via immigration, as some of the other wealthy countries are trying (I don't want to start a rukus, but the immigration route is fraught with peril). This is playing out to a lesser extent in the other "wealthy" countries as well.
    So, the country is facing both market and product problems. It really will take some very clever moves to survive. I suggest that people be on the lookout for a small company that innovates. These are the times where a new Microsoft can be born.
  23. Like
    drm got a reaction from Geoff CB in Canon rush to reassure investors as camera profits plunge 64%   
    Yep. That was my point. Canon could have made a big difference, but they chose not to in order to protect their lens/legacy business, like Intel, Kodak and countless other companies before. Now, you have the cell phone companies innovating in the photography space because that gives them bragging rights, which helps them sell more phones. The computational imaging stuff that they are working on is amazing (like Google's low light stuff).
    You know that it is serious when Canon is basically warning investors that they are going to get out of the camera space and focus on more profitable areas.
  24. Like
    drm got a reaction from Mako Sports in Canon rush to reassure investors as camera profits plunge 64%   
    Yep. That was my point. Canon could have made a big difference, but they chose not to in order to protect their lens/legacy business, like Intel, Kodak and countless other companies before. Now, you have the cell phone companies innovating in the photography space because that gives them bragging rights, which helps them sell more phones. The computational imaging stuff that they are working on is amazing (like Google's low light stuff).
    You know that it is serious when Canon is basically warning investors that they are going to get out of the camera space and focus on more profitable areas.
  25. Like
    drm got a reaction from PolarStarArts in Canon rush to reassure investors as camera profits plunge 64%   
    This happens to many big market leaders when the market changes. They try to protect their old business, rather than jumping in on the new opportunity. The list of times where this has happened is truly massive: IBM - PCs, Microsoft - anyone remember Windows Mobile????, the list goes on and on.
    Canon's imaging business (and everyone else's) is being eaten by cell phone cameras. Cell phone imaging systems are rapidly improving and are even doing things that the legacy cameras can't do, like allowing people to produce live video & computational imaging. The cell phone cameras are going to continue to improve over time. SLR type cameras will hang around because there are people who care about image quality, but the camera market will be a tiny fraction of its former size. All but the most dedicated will just use their mobile device. I would hate to have my bonus tied to the point and shoot camera market in the future...
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