Tag Archives: best

Schlieren Imaging Slow Motion DIY!

Schlieren Imaging Slow Motion

Sometimes all it takes to embark on a new project is some unexpected inspiration.  On the Incredible Slow Motion video by Veritasium – Seeing the Invisible: Schlieren Imaging in SLOW MOTION we are not only inspired but awestruck by the results of this simple and doable at home scientific experiment.   The experiment allows a camera to visualize the vortexes of gases and temperature differences in the air which serve to create some very interesting scientific experiments and or artistic visualizations.

You will need a Concave Parabolic Mirror like the ones used in reflective Newtonian telescopes, “you may have one lying around from your stargazing days”,  you will also need a small light source like an LED flashlight or single diode and finally a razor blade or similar precise object to cut off the light to the camera on a plane.

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Fake Slow Motion Is It Worth It?

Fake Slow Motion

There has been a lot of work put it developing software that can interpolate frames for video editing and compositing applications. Twixtor in the late 90’s was perhaps the first time the technology could make something worthwhile and really produce acceptable results in a computationally acceptable timeframe.

Today the most used algorithm is Adobe’s Optical Flow in Premiere or Time Warp in After Effects which use vector directional plus acceleration of pixel values to derive in between frame data to generate new frame information from the preceding frame as point A and the next frame as point B.  The results can do some wonders to really slow down things above the frame rate ceiling of the camera.

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Panasonic EVA1 has 2k 240fps Spec!

Panasonic EVA1

The Panasonic AU-EVA1 Super 35mm Cinema Camera is a first for the company in several key fronts. For starters, it is abandoning the Micro 4/3 sensor in turn for a more industry standard S35 module which has a larger area and in turn much better light gathering power.  Gone also is the micro 4/3 lens mount which Panasonic favors and in its place a Canon EF Electronic mount which could have been called blasphemy to see this in a product line of this price range for Panasonic.

Since the sensor-flange distance is increased you will not be able to use the Micro 4/3 or 4/3 lenses you were using with an AF100 for example.  When it comes to slow motion this camera is no slouch with 240fps continuous recording to SDXC II v90 cards in both 2k resolution and full HD 1080p. It is also bringing it to the 4k 50/60p realm which now is becoming commonplace.

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Panasonic GH5 vs Red Epic Slow Motion!

Panasonic GH5 vs Red Epic Slow Motion

The Youtube channel CRFTSHO has created a guessing video game that pits the Panasonic GH5 vs the RED EPIC Camera in a slow motion 1080p match.  The fun is that even for the trained eye there is no easy way to tell which camera is actually on screen playing until you get the revelation footage which is the 2nd part of the game.

What is interesting about the results is that the RED Epic a camera worth over 10 times more than the Panasonic Lumix GH5 is almost indistinguishable and in some shots the cheaper camera is preferable in sharpness and detail.  It probably has to do with the GH5 doing full sensor downsampling up to 120fps at 1080p vs the RED doing sensor windowed mode.

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DJI Spark Mini Drone Lacks High Frame Rates!

DJI Spark

The newly announced DJI Spark Selfie Micro-drone is a thing of beauty when it comes to capability vs size.  At just $499 it is also half the price of a DJI Mavic Pro and while it lacks a 3 axis gimbal and extended flight time; this is geared to the people that want a no nonsense experience that is truly portable for their flight camera needs. It has a camera capable of 1080p video of pretty good quality at 30fps.

The downside is that it lacks 4k for one thing and any other frame rates besides 30fps full HD.  It does do  12MP still images with good dynamic range and color accuracy which could become the best use of the drone for markets such as real estate, surveying and aerial imaging that is ready at any moment without the bulk.

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Olympus Tough TG-5 Digital Camera 120fps 1080p!

Olympus Tough TG-5

Olympus is announcing the TG-5 rugged camera which is the replacement for the popular TG-4. It has quite a number of new features and what may be a first for this type of cameras; a sensor pixel density reduction from 16MP to 12MP. A welcomed addition that will ensure better low light quality with a BSI CMOS sensor and speedier data acquisition which lets it output 4k and 120fps 1080p video.

It has also a 720p 240fps mode and a VGA 480fps mode which makes it stand out in the slow motion categories. This camera seems to be aiming at the GoPro Hero 5, Yi 4k+ and Sony Action Camera markets with more features, better usability and the features you expect from a portable camera. It can also be used in drones with some creative placement due to its low weight of 250g with battery!

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