DANIEL SCHWEINERT


Director of Photography

Removing 100s of Hot Pixels at once

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How to remove 100s of hot pixels at once from DSLR or any other footage!
This method works best if the hot pixels are only 1pixel wide and 1 pixel tall. Should work with any software that supports an Alpha or Luma Matte. Remove the bigger ones with the "CC Simple Wire Removal" from After Effects.

It's a pretty simple method you just use the adjacent pixels from the same clip but shifted by 1 pixel. The same procedure is done when a sensor is pixel mapped but here we do it in software.

  1. Open a still frame in Photoshop that contains the hot pixels.
  2. On a new layer paint with the pencil tool (Hardness 100% / Size 1 Pixel) over the hot pixels. Zoom in to catch 'em all. Paint only over the brightest part.
  3. Delete the still frame layer. Save the Pixelmap as a new file. The mapped pixels should be white and the background black.
  4. In After Effects put the Pixelmap on Layer 1 and the footage containing the hot pixels on Layer 2. Duplicate the hot pixel footage to create Layer 3. Create a Luma Matte for Layer 2 and select the Pixelmap. Move Layer 2 by 1 Pixel to the right. Thats it!

You can use the Pixelmap on all your clips if they're stuck always on the same position. This method should work with DaVinci Resolve too because it supports alpha channels and external mattes. Though I didn't tested it myself yet.

Samsung LED TV for Color Grading

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I just replaced my old Eizo display with a new and cheap 32" Samsung LED TV (Model UE32H6470). I use it for video editing and color grading my stock footage clips. It is connected to my Blackmagic Design UltraStudio Mini Monitor that works with Adobe Premiere, After Effects & DaVinci Resolve. Of course it can't be compared to a Flanders Scientific but man this cheap TV is really amazing and they have a myriad of image controls nowadays! Out of the box it has really good colors and contrast once set to movie mode. I used the AVS HD 709 mp4 clips on the Adobe Premiere timeline to fine tune Brightness, Contrast, Color, Tint & Sharpness. Further fine tuning and RGB balance was done with CalMAN Studio, DaVinci Resolve as pattern generator and a X-Rite i1 Display PRO probe.

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Remove Hot/Stuck Pixels directly in the BMPC4K

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After shooting some footage with my new Blackmagic Production Camera 4K I've noticed some unpleasant white hot pixels all over the image. They showed up in lowlight but also in correctly exposed (untouched) daylight clips. Somewhere in an old post I've read that a firmware down- & upgrade may help but there was no confirmation by anyone. Don't know but seems like it was forgotten. Anyway for others with the same problem try it. For me it worked really good!

Blackmagic Production Camera 4K (don't know if that works with other BMD cameras too)
This is exactly what I've done:

1. Take out the SSD and take off the lens.
2. Put the Camera Body Cap on.
3. Connect the power adapter to the camera.
2. Downgrade the Firmware to 1.8
3. Upgrade the Firmware to 1.9.8

See the before & after 1:1 crop above. I don't know if the camera triggers an undocumented internal pixel mapping but the hot pixels are gone and the overall image is now much better! Thats awesome - though I don't know how long it will stay that way. I will see :-)

If that didn't worked for you then there is still an easy workaround directly in DaVinci Resolve:

1. Create a node with a Power Window and resize it to 1.0 and set Soft1 to 0.00
2. Zoom in and move the Power Window directly above the hot pixel.
3. Got to the Blur Palette Effects and set the Radius of the Blur slider to 0.53
4. If you positioned the Power Window directly above the hot pixel it should be gone now.
5. If not try to reposition the Power Window.
6. For each hot pixel create a new node then copy and paste the Power Window. Reposition it on the next hot pixel and so on ...
7. Create a PowerGrade from the whole node structure and use it on other clips with hot pixels.

Sony Cyber-shot F828 IR Magnet Hack in 2 seconds!

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I needed this camera today with IR mode on full manual control but it was of course locked by firmware in Auto-Mode when switched to Nightshot. Aaarrrgh!

After thinking about how the internal mechanism could work I've opened it and found out how to easily move the IR-Cut filter from a Sony Cyber-shot F828 and still have full manual control.

A tiny electromagnet inside the camera controls the IR Cut filter when switching to Nightshot mode. I've marked the position of that electromagnet on the housing. Now if you take a small but strong neodymium magnet you can control that electromagnet from outside and switch the IR Cut filter on and off in seconds.

Turn the dial on your F828 to Manual mode and use that neodymium magnet to turn off the IR Cut filter. Voila you now have infrared mode with full manual control!

Btw. this hack works on the Sony Cyber-shot F717 too. Click below to see the full post. Read More...

The Moon shot using a BMPCC

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I was playing around with the BlackMagic Pocket Cinema Camera from a friend and decided to adapt it to my 1500mm Schmidt-Cassegrain telescope.

The Moon was shot with the Canon EOS 5D Mark 3 + MagicLantern RAW & BMPCC through a Celestron NexStar 6SE. More technical info at the end of the video. Editing and Color Correction done in DaVinci Resolve Lite.

Music Space and Time by ScoreStudio (Pond5.com)
Composer Jonathan Glenville Wright
Licensee Daniel Schweinert

Free Neat Video Profiles BMPCC

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Here is my next set of free Neat Video Pro noise profiles. This time for the Blackmagic Pocket Cinema Camera. I've made them using Neat Video's noise calibration chart and fine-tuned the patches by hand. Just unzip them into the "Profiles" folder of your Neat Video for After Effects or OFX. I recommend to apply Neat Video as the very first filter applied to the video data.

You can use the noise profiles with Neat Video Pro OFX Plugin for DaVinci Resolve too! Just be sure to set Color Space & Gamma to BMD Film if you recorded in RAW mode. Also add the Neat Video OFX Plugin directly to the "first" node. This will ensure that Neat Video uses the unaltered footage for noise reduction. Do your primary grading on a new node.

I've made 3 different sets of noise profiles for BMPCC ProRes Film, ProRes Video and RAW DNG. Make sure to use the proper noise profile with your footage to get best results.

Plugin: Neat Video Pro After Effects / OFX
Camera model: Blackmagic Pocket Cinema Camera
Profiles for ISO Range: 200 - 1600 (ProRes Film, ProRes Video & RAW DNG)

>>> DOWNLOAD <<<


Light Craft Rapid ND Filter Review

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Light Craft discontinued the Fader MK2, the more expensive Fader ND Digi Pro and came up with the new Rapid ND. Therefore I did some tests with my newly purchased variable neutral density filter to see how it performs.
Read More...

RawMagic Lite 1.1 vertical banding (solved)

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Just installed the new version of RawMagic Lite 1.1 on my mac to find out that it introduces vertical banding in my 5D Mark III ML RAW footage. The footage was captured in Magic Lantern 3x magnification mode. Also the new version 1.1 makes the footage a tiny bit brighter. I think they forgot to add the stripe removal in their conversion process. It's a free version but I hope they fix this soon in the next release. Until then I reinstall and use the older version 1.0.

Here you can clearly see the vertical banding (fine visible stripes from top to bottom). Thats a 100% crop from the flat looking DNG file but if you apply color grading it will be much more visible and distracting.

Im using Magic Lantern: Nightly.2014Apr07.5D3113

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UPDATE 2014/05/01: Thanks to the Rarevision team the vertical banding issue has just been solved! Great work guys! Download the fixed version from iTunes Store.
© 2013 Daniel Schweinert | Director of Photography | E-Mail Kontakt