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Type: Posts; User: iain.bason

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  1. Replies
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    That depends entirely upon the analog stage. If...

    That depends entirely upon the analog stage. If it clips, the ADC isn't going to save you.
  2. GH4 Yes, that has happened to me on occasion. I have...

    Yes, that has happened to me on occasion. I have always assumed that it's due to some kind of effort by Panasonic to make third party batteries unusable, in much the same that printer manufacturers...
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    Zeiss distagon on sale at B&H today

    EF mount, full frame. So, good for those with speedboosters, for example:

    https://www.bhphotovideo.com/c/product/839987-REG/Zeiss_1871766_Distagon_T_25mm_f_2_0.html
  4. For hard light you want to look at COB (Chip On...

    For hard light you want to look at COB (Chip On Board) lights. I haven't kept up with what's available, so can't point you at anything specific.
  5. GH4 I have a GH4 and a Pocket 4K. I didn't get the...

    I have a GH4 and a Pocket 4K. I didn't get the GH5 because it didn't seem worth spending $2k to upgrade.


    It's easier to get a beautiful image with the P4K, but if you can control your light you...
  6. He said he has an H4N, not an F4.

    He said he has an H4N, not an F4.
  7. De-mosaicing adds a lot of data, which would make...

    De-mosaicing adds a lot of data, which would make it harder to achieve that 12:1 compression. I imagine that they're adjusting the pixel values to make a simple interpolation algorithm work well.
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    The 20mm fits. I don't know whether the 21mm also...

    The 20mm fits. I don't know whether the 21mm also fits.

    The BBG by itself doesn't do a whole lot, so a deadcat would be a good idea.
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    GH5 I don't know the details of how these sensors...

    I don't know the details of how these sensors operate, but there is no such thing as "no gain". The electric signal coming from a pixel on the sensor is minuscule. It has to be amplified.
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    I've always wondered how they do that…

    I've always wondered how they do that…
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    GH3 Yes, there's a menu setting, but I don't have my...

    Yes, there's a menu setting, but I don't have my manual handy to look it up.
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    GH4 I can't answer your question, since I've never...

    I can't answer your question, since I've never used a C100 or C200, but you'll probably want to look at a Metabones speedbooster. A lot of GH4 owners use a speedbooster with the Sigma 18-35, and it...
  13. GH5 Very nice!

    Very nice!
  14. Replies
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    That reminds me of the "dead room" I visited on a...

    That reminds me of the "dead room" I visited on a tour of Bell Labs way back when. Acoustic wedges about 3 feet thick on the floor, ceiling and walls (including the door). We walked on a wire mesh....
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    Sennheiser AVX on sale today at B&H

    $300 off: https://www.bhphotovideo.com/c/product/1135455-REG/sennheiser_avx_me2_set_4_us_avx_camera_mountable_lavalier_wireless.html.
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    GH5 4k is approximately equal to 8 megapixels. 4k is...

    4k is approximately equal to 8 megapixels. 4k is 3840 x 2160 pixels, or 8,294,400. 8 megapixels is technically 2^23 = 8,388,608.

    The GH5 uses the full sensor width, and downsamples to 4k. It does...
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    GH5 Can't you use exposure compensation to counteract...

    Can't you use exposure compensation to counteract that?
  18. If you're using a Zacuto EVF, isn't the peaking...

    If you're using a Zacuto EVF, isn't the peaking done by the EVF rather than by the GH5?
  19. Replies
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    GH5 I'm not in the business, but that seems really...

    I'm not in the business, but that seems really inexpensive for work of that quality.
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    GH5 Awww, now I'm hungry! Were any of the shots...

    Awww, now I'm hungry!

    Were any of the shots hand held?
  21. GH4 What is it about OIS that avoids that "warping"?

    What is it about OIS that avoids that "warping"?
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    EVA1: With the DVX100, I think it was just because the...

    With the DVX100, I think it was just because the camera could adjust the focus more frequently when shooting 60 fields per second. If you think of focusing as trying a sequence of different settings...
  23. GH4 No, it now has a focal length of 17mm. The focal...

    No, it now has a focal length of 17mm. The focal length of a lens depends on how the elements in the lens bend the light. The speedbooster adds an element, and thereby changes the focal length.
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    GH4 So how can companies like Atomos and Blackmagic...

    So how can companies like Atomos and Blackmagic encode to Prores if it isn't an open standard? Is its lack of support on Windows due to Apple not releasing the spec, or just to Apple not providing...
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    GH4 If you get the EF mount speedbooster you can...

    If you get the EF mount speedbooster you can still get a Nikon-to-EF adapter and use it for Nikon lenses.

    Personally, I like having the option for auto control. You can always switch to manual if...
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