To produce well-composed, flicker-free slow-motion videos, you’ll need the appropriate sort of lighting. This is an important consideration when making correctly exposed, flicker-free slow-motion videos.
The ability to create realistic videos demands good video editing software and adequate lighting. Even though we do not see real things in slow motion, we still have a visual sense of how slow motion may enhance the feeling of reality in what we are viewing.
If you want to provide the highest quality slow-motion video, you’ll need the appropriate lighting equipment. We’ll look at what light technology is best for slow motion and why it’s important in this section.
VARIABLES IN SLOW MOTION FILMING
If you’re recording a slow-motion video, there are a few key factors to consider: Frame rates Shutter speed Lighting
You won’t be able to create an impactful and flowing slow motion if you don’t have control over all the variables. This fluidity is essential because without it, your slow-motion video will appear jerky and unprofessional.
Read more: speed up or slow down any video!
If you just slow down a 25fps recording without addressing the frame rate, there will be no seamless transition between frames. Therefore, you’ll need to film at a greater frame rate (for example, 150 fps) and then play it back at a slower speed (in this situation, 25 FPS). You should think about both factors.
This is determined by the look you want to portray. For example, 60 frames per second may be appropriate for obtaining a slow-motion effect, but in certain cases, you may need a higher frame rate. The addition of extra frames in the lower frame rate for viewing provides for a fluid motion.
Another crucial element is the shutter speed. The amount of blurring can be controlled by varying the duration of exposure. The more time the shutter is open, the blurrier the movement becomes.
The usual guideline is to use a shutter speed twice the frame rate for a natural-looking amount of motion blur. A too-high shutter speed, on the other hand, will make your slow-motion video appear jagged. As a result, you should also think about how much movement there will be in your subject when shooting it at such a high speed.
Using faster shutter speeds and frame rates also implies that your camera will have less time to gather light for each shot you take. As a result, if you want to expose your photographs perfectly, you’ll need more powerful sources of illumination. You won’t get good slow-motion footage unless there is the correct quantity of light.
This is why light is so important when filming in slow motion.
WHY FLICKER IS A LIGHTING ISSUE
The flicker in tungsten lighting sources is caused by the frequency of the main supply’s alternating current. The main supply frequency in the UK is 50Hz, whereas it is 60Hz in the United States. The number of complete AC sine waves per second is known as hertz (Hz).
The HMI source’s frequency is derived from the supply ballast, which is usually set at 50Hz, 60Hz, or “flicker-free” (usually 100Hz) in speciality ballasts such as those supplied with our ARRI M Series fixtures. For ultra-slow-motion pictures captured with our Vision Research Phantom VEO4K @ 1000fps in 4K, a special (but loud!) 1000Hz frequency can be selected.
Some light sources, such as LEDs, do not give off a constant luminous flux but instead have an intensity that varies with the supply’s voltage. PER second, when mains voltage reverses polarity, light intensity pulses in time with this mains frequency.
When filming lightning, you’re shooting with certain frame rates that, when mismatched to the lighting frequency, cause the picture to flicker or roll. In this manner, the camera’s sensor’s frame rate works in a similar way to that of the AC mains supply’s frequency. 25p (25 frames per second) has a frequency of 25Hz. When using a 1/50th or 180-degree shutter on a 25p sensor, the frequency is now 50Hz rather than 25Hz.
When comparing the two, it’s important to keep in mind that, unlike slow-motion video, high-speed photography does not record actual events in real-time. High-speed filming isn’t live action; rather, it is a type of animation with higher frame rates and more depth. In general, if the frame rate matches the whole number multiples of the lighting frequency, no flicker should be visible. However, when the frame rate differs from the frequency for example as shooting 25p in America where the mains supply is 60Hz causes flicker. When shooting at 1000fps, a lighting source of 50Hz is far too slow to keep up with the frame rate, therefore again at these insanely high frame rates you can see 50Hz flicker.
To address the issue, change the frame rate, shutter speed, or lighting frequency to match. The type of light source is crucial in keeping flicker levels low. For slow-motion filming, the greater the frequency, the better.
You won’t have to worry about flicker if you’re shooting outdoors with the sun and reflectors as your light sources. But, as previously said, most electrically generated light sources will flicker in some manner. The degree of flicker that is seen by the viewer can be controlled by manipulating the perception of the flickering for them.
Flicker can be caused by a variety of different factors. When capturing at a standard, 25fps frame rate, for example, you may use a tungsten lamp or even a residential fluorescent light and not have flicker issues. Flicker is considerably more likely to occur when the frame rate and shutter speed are modified. Different sorts of lighting have varying flicker rates:
Fluorescent lighting may be used alongside HID lamps. While these bulbs are well suited for use in homes and buildings with electrical systems that cannot support high-frequency ballasts (such as incandescent lights), they do require a flicker-free electronic ballast to operate effectively. HMI is an acronym for hydrargyrum medium-arc iodide. Instead of using an incandescent bulb, these lamps employ an arc lamp.
The electronic ballast is a device that generates an ignition pulse and regulates the arc. This transforms the sine wave into a square wave, allowing the light to remain constant for longer after zero-crossing (the instant when there is no voltage).
A low-frequency HMI lamp will have a frequency of 75 to 100 Hz, with the gap between electrodes growing over time and the arc extinguishing for longer periods during zero-crossing. This can raise the flicker factor above 3%, which means that you should replace the bulb.
LEDs are susceptible to flicker, particularly if you dim them. LEDs are also prone to flicker because they react quickly to voltage fluctuations. To overcome this, high-quality LED lighting fixtures regulate the frequency of each individual LED on the panel, providing better light (as well as price!).
Because of this mechanism, most LED fixtures are now limited to much higher frequencies than we can capture with specialized cameras. The new huge dot LED technology is capable of operating at more than 10,000Hz! This makes them an excellent match for high-frame-rate filming.
Tungsten lamps require AC mains power to generate their frequency radiation. If you dim tungsten lights, you are changing the amount of current they receive and will therefore impact the frequency and flicker.
Fluorescent bulbs can be used with either electronic or magnetic ballasts. Flicker is reduced, but because both fluorescent lamps and energy-saving bulbs have higher flicker factors than other lighting methods, it may not be eliminated. Magnetic ballasts (such as those utilized in building strip lights) cause flicker in fluorescent lamps with a flicker factor of between 30% and 60%. You can reduce the flicker of electronic ballasts to 0 per cent (as seen in Kino Flo Divas / 4x4s etc), down to 10%, or even eliminate it altogether (with a Kino having a 0% flicker factor).
When you’re utilizing flicker-free light sources, as with most of the other formats, you’ll need to compensate for the wild flicker produced by magnetic ballasts by changing the frame rate and/or shutter angle.
HIGH-SPEED BALLASTS FOR HMI LIGHTING
Arc wander can occur in LED lights as well, and it’s caused by a plasmatic hot spot that moves within the bulb.
This can produce a glistening effect with a rapid colour shift as a result. As a consequence, you won’t be able to guarantee flicker-free lighting using HMI lamps with standard electronic ballast. One way to solve the problem is by utilizing high-frequency ballasts for HMI lamps. These can significantly reduce or even eliminate flickering.
The popularity of these high-speed ballasts, which operate between 300Hz and 1000Hz, has enabled filmmakers to create flicker-free images of excellent quality at frame rates as high as 1000fps. If you’re looking for flicker-free lighting, why not visit Pro Motion Hire?
How to Choose the Best VPN for Home Improvement Supplies
Home improvement supplies are necessary for any home renovation project. From tools and materials to furniture and fixtures, home improvement supplies help to make any project successful. But choosing the right supplies can be a challenge. This article will discuss the types of home improvement supplies and what to consider when choosing them.
Common Home Improvement Supplies
When it comes to home improvement supplies, there is a wide range of options available. Common home improvement supplies include tools, hardware, plumbing materials, paint, and lighting fixtures. These supplies can be purchased from a local store or online. Additionally, you may also need to rent or hire a contractor or specialist to complete the project.
Factors to Consider When Choosing Home Improvement Supplies
When choosing home improvement supplies, there are several factors to consider. These include cost, quality, and durability.
Cost is an important factor to consider when choosing home improvement supplies. Depending on the type of project, supplies can be costly. It is important to shop around and compare prices to get the best deal. Additionally, you should consider the quality of the supplies to ensure you are getting the best value for your money.
Quality is another important factor to consider when choosing home improvement supplies. Quality supplies will last longer and perform better than cheaper alternatives. It is important to choose supplies from reputable brands and check reviews to make sure they meet your needs.
Durability is also an important factor when selecting home improvement supplies. Durable supplies will last longer and require less maintenance over time. It is important to choose supplies made of high-quality materials that are designed to withstand wear and tear.
Tips for Choosing the Best VPN for Home Improvement Supplies
When shopping online for home improvement supplies, it is important to use a VPN (Virtual Private Network). A VPN helps to protect your privacy and keep your information safe. Here are some tips for choosing the best VPN for home improvement supplies:
Understand the Need and Usage
Before choosing a VPN for home improvement supplies, it is important to understand the need and usage. A VPN can help protect your online purchases from hackers and keep your information safe.
Research Different VPN Options
Once you understand the need and usage of a VPN, you should research different VPN options. There are a variety of VPNs available, and it is important to choose one that meets your needs. Consider the features, cost, and speed of the VPN before making a decision.
Choose a VPN with Adequate Security Features
When choosing a VPN for home improvement supplies, it is important to choose one with adequate security features. Look for a VPN that offers encryption and other security features to keep your information safe.
Check the Data Limit of the VPN
Another important factor to consider when choosing a VPN for home improvement supplies is the data limit. Check the data limit of the VPN to make sure it is sufficient for your needs.
Check the Speed of the VPN
Finally, it is important to check the speed of the VPN. The speed of a VPN is important, as a slow connection can affect the performance of your online purchases.
Choosing the best VPN for home improvement supplies is an important step in protecting your information and keeping your purchases safe. Consider the need and usage of a VPN, research different options, and make sure to check the data limit and speed of the VPN. If you are looking for a reliable and secure VPN for your home improvement project, consider VPN Canada.
Compound Interest: How It Works and How To Calculate?
A phrase attributed to the renowned physicist Albert Einstein says that compound interest is the eighth wonder of the world: “Whoever knows wins, whoever does not know pays”.
Although it is not possible to attest to the veracity of this quote, compound interest is, in fact, an intriguing invention, as is the concept of money itself.
Imagine that, over time, your equity multiplies at a certain rate without you having to make any effort. This is the most basic idea behind the mechanism.
In the same way, compound interest also determines the growth rate of a debt, generating the famous snowball effect.
From now on, you’ll understand more about how compound interest works and find out how to incorporate them into your financial planning. In the end, you will arrive at the same supposed conclusion as Einstein. Read on!
What is Compound Interest?
Interest is the cost of money over time. In a loan, this is that additional amount you pay over the original amount (also called capital or principal) for borrowing an amount.
The reverse is also true: in investments, it is that extra money you receive when you lend someone a sum for a certain period.
In this way, it is already possible to perceive that, in addition to the interest rate itself, another very important factor in these operations is time. The longer the money takes to be returned to the original source, the higher this fee will be.
There are two ways to determine the rate of growth of the interest rate on a loan or investment: using the simple interest method or the compound interest method. Moreover, there is a quick equity release compound interest calculator that will let you calculate compound interest within a minute.
In the case of simple interest, the rate increases linearly. This means that a simple multiplication of the principal by the rate and duration of the operation is enough to obtain the amount that must be paid in interest. We will see a practical example later.
In the case of compound interest, the rate grows at an exponential rate. Thus, the value of interest in each period is multiplied by the value of the next, increasing the cost of money over time.
What is the Simple Interest Formula?
As we have already seen, it suffices to simply multiply the capital by the rate to find the final amount that must be paid or received. This type of calculation is very common in dollar operations.
Let’s see an example: imagine that you took out a loan of US$ 1,000 at a rate of 5% per annum and that you intend to pay off your debt in two years.
Therefore, at simple interest, just multiply the US$ 1,000 by 10% (the accumulated value of the rate in two years) to obtain the final amount of the operation.
Over time, this amount is always multiplied by the same amount to calculate interest.
Thus, using the formula of simple interest (j = C xixt), we find the amount of interest that must be paid.
From there, we find the total amount of debt by adding interest to principal (M = C + j).
Interest (j) = Capital (C) x rate (i) x time (t)
Interest = 1,000 x 5% per year x 2 years = 100
Amount (M) = Capital (C) + Interest (j)
1,000 + 100 = 1,100
What is the Compound Interest Formula?
Imagine the same operation as in the previous topic, now governed by compound interest. It would look like this:
Amount (M) = Capital (C) x (1 + rate (i)) ^ number of time periods (n)
Amount = 1,000 x (1 + 5%) ^ 2 = 1,102.50
As you can see, there was a small difference (of 2.50) between the application of the simple interest formula and the compound interest formula. However, this difference becomes bigger and bigger with the passage of time.
Important: Be careful with the equivalence of time in relation to the rate. Thus, if the rate is expressed as a percentage per year (% per year or per year), the operation time also needs to be considered on an annual basis for the calculation to be correct.
Likewise, if the rate is on a monthly basis (% per month or am), always make sure to consider the term of the operation in months so as not to make a mistake in the calculations.
Why do we Use the Letter i to Represent the Rate?
You may have noticed that it is very common to represent the interest rate with the letter i. This is because, so that it is not confused with the time variable (t), it was agreed to import the abbreviation of the expression in English, interest rate, which means interest rate.
Therefore, whenever you come across more technical content, you will probably see the acronym i or even the expressions interest or interest rate.
How to Use Compound Interest?
As you’ve seen here, compound interest is a powerful tool. At the same time that they multiply debts, they can be fundamental for building your equity.
In that sense, it’s worth reviewing the way you’re using your money. Start with the following step by step:
1. Avoid Long Installments
As you saw here, the longer it takes you to return the money to the borrower, the greater the cost of the money to you. Therefore, if you have to pay interest in installments, try to do this in the shortest possible time. This way, you avoid leaving more money on the table.
Likewise, always seek to know the Total Effective Cost (CET) of any credit operation before closing a deal.
The more complex this operation is, the more it is necessary to pay attention to conditions that go beyond interest, such as insurance and other additional fees.
2. Always Invest. Every Additional Application Counts
If you can only invest R$ 100 per month, go for it. Each small additional application counts a lot for the formation of your equity and helps you to get closer to your objectives when investing.
At that moment, rely heavily on the help of compound interest to multiply your capital. As you saw earlier, the more time passes, the more your money multiplies under this powerful tool.
3. Swap Expensive Debts for Cheaper Ones
Renegotiating a debt is another way to stop spending money on interest. In this way, seek to advance installments whenever possible. If you have a loan, debt repayment will help you pay it off faster and pay less interest in the end.
If you already have investments such as CDB, LCI and LCA, another possibility is to resort to Investment Guaranteed Credit (CGI). This is a new modality in Brazil, but it promises to change the way Brazilians use credit.
Nobli, for example, is the first fintech on the market to offer this type of service independently. Previously, it was restricted to the shelves of large banks and Private Banking investors.
The big advantage is that you don’t have to dispose of your assets to capitalize. They continue to yield normally while you carry out your plans.
Stand Out Online: Building an Agency Website with the Perfect Template
In today’s digital age, having a strong online presence is crucial for agencies looking to attract new clients and showcase their expertise. One of the key elements of a successful online presence is a well-designed and optimized agency website. By leveraging the power of an agency website template, you can create a stunning website that captivates your audience and sets your agency apart from the competition. We will explore the benefits of using an agency website template and provide insights on how to build an exceptional website that truly represents your brand imaging expertise.
Why Choose an Agency Website Template?
An agency website template offers numerous advantages for agencies seeking to establish a professional and captivating online presence.
Let’s take a closer look at the key reasons why an agency website template is the perfect choice:
- Elegance and Functionality:A well-designed agency website template exudes professionalism and creativity. It allows you to showcase your agency’s unique style and offerings with a visually appealing design that works seamlessly across all devices, from desktop to mobile.
- Customization Options:Every agency is unique, and an agency website template provides the flexibility to customize the design to match your branding.
- Concise and Impactful Overview:An agency website template is designed to offer a brief yet impactful overview of your services. It enables you to highlight your team’s expertise, showcase successful projects, and emphasize the unique value you bring to clients.
- User-Friendly Interface:Navigation is crucial in ensuring a positive user experience. An agency website template provides smooth scrolling and intuitive navigation, allowing visitors to quickly explore your website and find the information they need.
- Call-to-Action Elements: Effective call-to-action elements strategically placed throughout your website can drive conversions and encourage potential clients to take the next step.
Building Your Agency Website: Steps to Success
Now that we understand the benefits of using an agency website template let’s delve into the step-by-step process of building an outstanding website that showcases your brand imaging expertise:
Step 1: Choose the Perfect Template
Select an agency website template that aligns with your agency’s style and objectives. Ensure the template offers customization options and features that will help you highlight your expertise and engage your target audience effectively.
Step 2: Personalize Your Website
Once you’ve chosen the template, it’s time to make it your own. Utilize the template’s drag-and-drop interface to personalize every aspect of your website. Update images, edit text, and rearrange sections effortlessly, ensuring your agency website template reflects your unique brand identity.
Step 3: Showcase Your Expertise
Take advantage of the content sections within the template to highlight your agency’s unique selling points. Showcase your team’s expertise, communicate your agency’s mission and values, and let your previous work speak for itself with a visually captivating portfolio. Engage your audience by demonstrating your brand imaging proficiency.
Step 4: Optimize for SEO
Optimizing your agency website template for search engines is essential to stand out online and attract organic traffic. Research relevant keywords, including the targeted keyword “agency website template,” and incorporate them naturally into your website’s content, headings, meta tags, and URLs. This will improve your website’s visibility and increase the chances of ranking higher in search engine results.
Step 5: Ensure Responsive Design
In today’s mobile-dominated world, having a responsive design is crucial. Ensure that your agency website template is optimized for different screen sizes and devices. This will provide a seamless browsing experience for your visitors, regardless of whether they are accessing your website from a desktop computer, smartphone, or tablet.
Building an agency website with the perfect template is a powerful way to establish your agency’s online presence and attract new clients. Utilizing an agency website template allows you to create a stunning and customized website that showcases your brand imaging expertise, engages your audience, and sets your agency apart from the competition.
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