CFD applications for modeling of COVID-19 dispersion in an airplane cabin, an elevator, a small classroom, a supermarket, an operating room of a hospital, a restaurant, a hospital waiting room, and a children’s recovery room in a hospital were discussed briefly in different scenarios. The main findings of each research were also summarized in a table to answer critical questions about the effectiveness levels of applying the COVID-19 health protocols. Special applications of the CFD modeling such as COVID-19 microfluidic biosensors, and COVID-19 inactivation using UV radiation were also reviewed in this research. Most of these recent applications of the CFD were reviewed for COVID-19 in this article. Social distancing and using the facial masks were also modeled by the CFD approach to study the effect on reducing dispersion of the microdroplets containing the virus. The effect of the different conditions of the ventilation was studied by the CFD modeling to discuss preventing the COVID-19 transmission. CFD was used to understanding the airborne dispersion and transmission of this virus in different situations and buildings. Many efforts were made to use the computation fluid dynamic (CFD) approach in this pandemic. Personally, I plan to continue using Velvet 56 it in a variety of different shooting scenarios: portraiture, macro, and fine art photography.COVID-19 pandemic has started a big challenge to the world health and economy during recent years. It is small enough to bring along in your camera bag to any session for some distinctive imagery that will surely enhance any image gallery. Velvet 56 is certainly different enough from the rest of Lensbaby’s lenses to earn its place in my line-up. The soft, silky quality is especially suited for women’s portraiture, and I can’t wait to try it during my next session.Ĭonsidering the unique qualities of this lens, I consider the cost reasonable, and comparable to the other lenses I own.
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This is where Velvet 56 will really shine, and creating special, one-of-a-kind portraits. I had no real opportunities to try this new lens for portraiture, except for a quick headshot my husband volunteered for. I took my Velvet on walks in Philadelphia and Boston, and it performed equally well for street photography, giving images a touch of magic. I found myself shooting macro images at apertures more wide open than I usually would to achieve the beautiful glow, making them unique. Velvet 56 is a very versatile lens, not only due to its 56mm focal length, but also due to its ability to handle macro. During my shooting, I had no trouble achieving tack sharp focus, even at wide apertures. For me, such effect was a bit overwhelming at f/1.6, but at apertures of f/2 and f/2.8 I found the glow lovely it gave my images ethereal, velvety quality. The amount of such glow in an image, of course, is a matter of personal preference. The wider the aperture, the more luminous, velvet-like effect there is. The most obvious unusual quality of this lens is that at wider apertures it creates a glow in an image. The aperture ring stayed at the desired f-stop setting while I moved the focus ring without accidentally shifting to a different aperture. By counting the clicks I knew exactly what aperture I was using while continuing to look through the viewfinder. This proved to be a very convenient feature, as I was able to adjust the aperture without having to put my camera down to look at the numbers. Velvet’s aperture ring has a subtle click as it turns from one f-stop setting to another.
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After about a day of shooting, I was very comfortable with the feel of the focus ring: it turns easy enough to focus quickly, yet has enough resistance that focus would not accidentally slip as I lift my fingers away from the ring.
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The focus ring turns smoothly, although with a bit more resistance than my other Lensbaby optics (Edge 80, Sweet 35, and Sweet 50).
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It is not at all heavy, however, and provides a good balance for my full frame camera body. My Velvet 56 is silver in color, and is has a solid construction.
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It is different enough from the standard line-up, and I knew that it will help me make unique, interesting images that I have come to expect from Lensbaby lenses. I am a lover of all things Lensbaby, and I was very excited when the release of Velvet 56, a novel lens, was announced. CLICK PROS TEST THE LATEST PRODUCT INTRODUCTIONS.Ĭlick Pro: Nina Mingioni,