Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Unedited at normal speed. I didn't quite understood the need for a razor blade but without one I still see the flow of air. For me, the razor blade just makes the dot of light smaller(?) If anyone can clarify me what the razor blade really does and where it should be placed (in the source of light or in the camera) I'd really appreciate. Also important to note that this is AWESOME to look with the naked eye but almost the dimmest light can blind you. I covered a tiny LED torch with aluminum foil and punctured a hole with a sewing needle, on the side! so that the LED doesn't bright directly through the hole. Take care with the eyes!!

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BGYB is delighted to present this video of WALLY ONE (a Wally 83 superyacht) taken at the Palma Superyacht Show 2023! OUR WEBSITE: www.bernard-gallay.com CONTACT charter@bernard-gallay.com Follow BGYB on Social Media ! * FACEBOOK https://www.facebook.com/BernardGalla... * LINKEDIN https://www.linkedin.com/company/bern... * TWITTER https://twitter.com/bgallay_yachts * INSTAGRAM https://www.instagram.com/bernardgall... #bgyb #yachtforcharter #yachts #wally83 #wallyone #performancesailingyacht #sailingyacht #cruising #racing #bernardgallay #palmasuperyachtshow

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My first foray into Timelapse Video. Lessons for next time: 1. Don't forget anything at home. 2. Bring a book... and a jacket. 3. The wide open apeture setting reduces flicker, but the depth of field makes things look out of focus on f/1.4... Better to accept some flicker and fix in post-processing. 4. Shooting on North Ave footbridge is way too shaky. Image stabilization is a pain in the neck. 5. Egg timer motion devices don't handle the weight of a DSLR very well. Image stabilization is still a pain in the neck.

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https://store.playstation.com/#!/tid=CUSA00182_00

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