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dhessel

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Everything posted by dhessel

  1. I don't know about premiere but after effects has a big memory leak. Load in 4k footage and you can watch it slowly eat away your memory until it crashes. Wouldn't be surprised if premiere is the same.
  2. It can work and it can work well but the problem is when it doesn't work there is nothing you can do. It is always better to get it right in camera if you can. SteadyXP seems fine, I had some interest in the data in gather for match moving but there is only so much it can do. For instance at night if you have unsteady footage with jarring motion it might be able to smooth it out but there is nothing it can do about the streaking you will see in lights. Just one such example but it illustrates the problem with relying on less than optimal solutions, they work but sometimes they don't and you won't know until you are back at your workstation trying to make delivery.
  3. Post motion blur can be ok but is not a replacement for the real thing. It can be a fall back solution but shouldn't be your go to solution. There were times in the past at my work where we took the risks and did things like this that were good cheap work around that gave us good results. But eventually it comes back to bite you and all of your tricks and shortcuts fail then you are SOL.
  4. As someone who does post stabilization all the time I can tell you there are some things you just cannot remove in post. As good as this may be it is not going to ever be as good as a true gimbal. Sure you can use 1/100 shutter to reduce the issues but it looks terrible unless you want it to look like a video game. Never rely on warp stabilization, I will come back to bite you at one point or another.
  5. I can't imagine how it might happen but it looks like micro cracks inside the lens. I have had a lens that I dropped in the past and it got a circular chip in the glass. It was a large chip that didn't separate but left the same rainbow like pattern you are seeing when viewed at the correct angle. If has large chips in the glass that have moved a tiny bit those areas can be softer which looks to me like what you are seeing in your footage. If the lens came arrived that way and was not listed as being damaged in the discription I would return it, if those are chips there is nothing you can do to fix it.
  6. You could also send it to Bernie ant Super16 Inc if you are in the US. He services these and will look at it for free and let you know how much it costs to fix if it can be fixed. This iscorama is basically like a normal anamorphic projector lens set to infinity focus with a variable strength diopter in front. The rounded front element on the main optical block can be removed without messsing up the alignment, if that gets you far enough in to clean it then you maybe able to to that yourselft depending on what is actually on the lens. I believe the next element back after that one is the front anamorphic element, the alignment of this elment to the rear element is critical and very sensitive. If you remove it it has to go back exectly how it was before otherwise the lens will loose sharpness.Once removed you should be as far in as you would ever need to clean out as much as you can. The focus of the anamorphic block is probably set by the rear element, it is my own policy to never remove or even loosen the rear element of any lens. Without a collimator you will never get it set right again. Having not opened one of these before I cannot say for sure but I have serviced an Iscorama 54 years ago and I suspect they are very similar.
  7. Unfortunately your best option is going to be to sell the F3 you have and purchase another with the upgrade already installed.
  8. While I ultimately agree with you i think it should be pointed that the surface are of the sensor in the iPhone is over 50 times smaller than a full frame Canon making it much easier to cool.
  9. Interesting article, I can see the connection the film writing prompts post you make. There is one thing I noticed and and would like to clarify if I am understanding you correctly. As I read it you are stating that a 56mm full frame equivalent lens on a medium format camera will give you more compression than a 56mm equivalent on a smart phone due to the longer focal length of the medium format. That is not the case, compression is a function of perspective which is purely defined by the physical position of the camera nothing more. Focal length only affects other characteristics like DOF, lens distortion, etc... This will be the case with all traditional lenses with maybe the only exception of some really odd ones like the reversed perspective lens I saw posted a while back.
  10. Yes it does but they generally don't moderate for polical correctness.
  11. True but they could still claim that the piece was capture and mastered in 4K which is probably enough.
  12. It does matter to Netflix for original content, they will not allow any camera that doesn't shoot native 4K period. The reasoning I have heard for this is that they advertise that all of their original content is 4k. They don't want to deal with any issues that may arise from using upscaled to 4K material. Technically they could get hit with a class action lawsuit if they say all of their original content is all 4k but some of it was actually not 4k and upscaled. While I find this to be unlikely it is not outside the realm of possiblity. Again this is only for their orginal content, for anything else it doesn't matter.
  13. The Nvidia is still going to be far superior to internal graphics, the internal is only there to allow a user to access the bios and boot in an emergency. I used an 8800 gtx with Resolve without issue for hd footage.
  14. Contrary to popular belief it appears that this is actually possible although I do not know what the maximum fstop acheivable would be. It is called a wide converter and was patented by kodak about two decades ago. We have never seen one since Kodak owns the patent and never produced one themselves. https://www.lens.org/lens/patent/US_5499069_A
  15. The wind? It's an indoor arena isn't it?
  16. I mentioned the Sony lens since it has the discription of what the APD filter does in that lens and that same type of filter was later used in the Fujinon lens. Point being that filter alters the DOF. I do see that mention DoF rolloff as one characteristic but I don't see any others.
  17. The beer example shows the images are not exactly the same. It doesn't show what is uniquely different about all large format lenses nor have you stated what unique image characterists all large format images have in common that make them different than smaller. Irrelevant when the filter first appeared. The Fujinon uses one and that filter alters the Bokeh. I hadn't either until recently, didn't even know something like that was even possible. It would be interesting to see how it could be used in the context of story. I think the point I and others are trying to make is that if you take a bunch of images shot with different lenses, sensor sizes and cameras that were shot at equivalence they would all look very much the same and identifying the large format images from the lot wouldn't be possible.
  18. In 2014, Fujifilm announced a lens utilizing a similar apodization filter in the Fujinon XF 56mm F1.2 R APD lens." I never said he wrote it.
  19. Here is a rather bizzare and extreme example of how what lens design can do. http://www.rafcamera.com/en/elite-reverse-perspective-lens
  20. He already diid address it with the article he posted, "The Minolta/Sony Smooth Trans Focus 135mm f/2.8 [T4.5] lens, however, is a special lens design introduced in 1999, which accomplishes this by utilizing a concave neutral-gray tinted lens element as apodization filter, thereby producing a pleasant bokeh. The same optical effect can be achieved combining depth-of-field bracketing with multi exposure, as implemented in the Minolta Maxxum 7's STF function. In 2014, Fujifilm announced a lens utilizing a similar apodization filter in the Fujinon XF 56mm F1.2 R APD lens." If you point is that different lens designs can produce different looks then I think we all agree. If you point is the large format lens design produces their own large format look you will need to show examples of them and define what the properties are.
  21. I had never heard of this webiste before, thank you. If the seller doesn't refund you, contact Ebay and they almost certainly will.
  22. If you don't already have a or filter you may want to look into a variable IRND, tiffen makes one if I am not mistaken.
  23. you are not an idiot for criticizing them, they deserve it. Their treatment of usra owners has been embarrassing.
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