Photography + Videography

VIDEO COMPRESSION RATES

Posted on May 30, 2018 at 01:48 PM / Under Photography + Videography

One of the elements we can choose when we are going to perform a recording besides resolution, frame and so many others whether in cameras are video or DSLR 's is the compression ratio. These rates are independent of the issue of "Frame Rate", resolution and other items that involve the "video quality" issue. The lower the compression rate, the higher the density of information in the video will result in higher quality and possibilities in post-production.

The compression ratio is basically defined by some items: Luminance and Chrominance Amount and the "Frame Repetition" rate (Intraframe or Interframe).

These elements (Intra Frame or Inter Frame) were created to "facilitate" the possibility of creating videos. We must remember that each second of video has a variation of "frames" that can vary between 24, 30, 60, 120 etc. ... (depending of course the technical possibility of each equipment). If each frame received individually and in its entirety all the "information" that composes an image, it would practically be impracticable to create video size would be the density of the generated files.

These repetition rates can be basically defined in two ways:

Intraframe: This is a form where the frame construction uses the full extent of the image scan (low compression). In other words, although the file is being compressed (coded) each frame is constructed in order to preserve all the elements in its construction.

Example used by Canon cameras in the "ALL-I" compression mode that have file variation. In the figure below, it is possible to see that the image is generated "Frame a Frame".

Video Compression Rates

Interframe: In this process the files become less dense because there is a complex process of creating the image in the construction of each frame. Only a few "Frames" are created throughout their "sampling" (I). Some frames are created using the variation of previous and / or later frames in the video sequence (Usually the frames of the middle - B). Further frame sequences are generated by "predicting" the sequence of frames relative to their pixels.

Based on the comparison of the two figures using the compression ratio used by Canon (All and IPB) it can be observed that in the figure where the compression rate used was the IPB only from the change of the dots from three to four points is that a new frame was built in its entirety (Intra frame)

We found in most manufacturers the possibility of adjusting compression rates. These settings can be adjusted in the camera menus and each manufacturer usually presents these variations with different nomenclatures.

Examples:

Canon DSLR Cameras: All and / or IPB

Sony Alpha Cameras: XAVC's, AVCDHD and MP4

Nikon DSLR Cameras: High and / or Standard.

Remembering that video cameras (Ex Camcorders) from several manufacturers also have this feature and their names also change between them.

In this way it is important to understand that:

If you want to do a good job of "Post production" in your video regarding color treatment, brightness, contrast, etc. .... Ideally, this material should be recorded under "low compression". This way you will have a greater breadth of manipulation of these elements. But remember that this recording format "consumes" a greater volume of space on your memory card and also in the editing process you will use more machine processing. In the case of Canon for example a low compression recording takes up approximately 3x more space on the memory card (In high compression mode on a 16gb card you can store 64 minutes of recording at Full HD resolution and recording at low compression you can only store 22 minutes in this same resolution).

If you need to record a large number of videos and have few media to store your work at the time of capture and your production does not require large "treatments" choose to record in "high compression" mode. Still you will have a good image and your work will certainly be well evaluated.

Always remember that regardless of the compression ratio, the good result of a video depends on several factors.


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Tips and Tricks for Taking Creative Photos in GoPro

Posted on May 30, 2018 at 01:48 PM / Under Photography + Videography

In order to accompany the specific adventurous population, which lives moving to the most varied places and do not want to carry a lot of weight, a type of camera called camera action.

The GoPro is best example of it and, although it was actually developed focusing on travelers, gained prominence with people all lovers of photography.

With the quality of a professional camera, GoPro has the same characteristics as the manual change of ISO and other functions.

Its resolution, even with its small size, is extremely high. In addition, some models have an excellent ability to record videos, capturing hundreds of frames per second.

But what sets GoPro apart is its unique features.

Most notable is its small size and weight, making it ideal for travel or the like.

Although light, it is very resistant, since it was developed to accompany athletes in extreme sports, such as cycling, climbing, surfing, among diamonds, besides being very good to accompany you on tracks.

About its ability to shoot, it has an advanced stabilization system, preventing video recordings from shaking, even when used in extreme sports.

To improve, there is the possibility of fitting brackets on bicycles, backpacks and the like, preventing it from falling and further reducing tremors.

Another peculiar feature of GoPro is its built-in Fisheye lens, which captures images at an angle of up to 180 degrees.

GoPro Creative Photos

But this feature will be better explored a few chapters ahead. Just for a little detail, these lenses allow for super wide images, capturing as many objects as possible.

Let's explore GoPro more deeply in this article, demonstrating how to extract the best possible quality from this action camera.

Its functions, features and best techniques to use will be better detailed, demonstrating how fun it can be to shoot with a GoPro.

GoPro has a manual function

Many thinks that because of its small size, GoPro has no manual function.

The truth is that this information does not proceed, since newer models such as HERO 3 Black or Silver, HERO 3+ Black, Hero 4 and their superiors have this feature.

To activate, you must use the Protune feature, which is a camera mode where you can make customizations.

Functions such as manual adjustment of white balance, exposure, sharpness, color change by (temperature setting), ISO, among others, can be found in Protune, feature to activate the GoPro Manual.

Activating Protune

After turning on the camera, it is necessary to press the front button until the "tool" icon appears. Then press the upper button and press "Capture Settings". To activate the function, simply press and hold the front button until "Protune" appears, pressing the upper button to activate it.

Now that Protune is active, you can select (always pressing the top button) the white setting (WB), with the possibility of changing between 3000k and 6500k.

To achieve tonal balance, follow the situation that a cloudy weather requires a higher WB while a sunny situation a lower value.

Other manual functions are the default color selection (GoPro Color) or highlights and shadows (Flat).


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LIGHTING TIPS FOR PROFESSIONAL VIDEO AND HOW TO USE

Posted on May 29, 2018 at 01:36 PM / Under Photography + Videography

Making a professional video is no easy task, depending on the type of production it takes months and even years to get to the end result. Among all of the features used for recording, video lighting is one of the most important. Video lighting is as important as lighting in photography.

In this article we will bring some very important lighting tips for video, some lighting techniques used even in great productions for photographic studios and how to use them correctly.

Lighting Focus

The focus of light is the main element of video lighting to watch for before starting work. It is important to make clear what it is to be seen, because the focus can bring it closer, move away, and deepen the motive. The most suitable equipment for studio recordings are illuminators and LED spotlights.

The illuminators and reflectors that use several pieces of mini LEDS are the most sought after, they usually change the color temperature of the environment and help create effects from tomorrow until nightfall within professional photographic studios.

To approximate, or pass on the idea of ​​approach, the subject is recommended by professional videographers to illuminate the part of the face in which there is more vision, as shown in the photo. It is important, in this case, to see the best angle of who is unfilmed and which position is most comfortable, because the focused light highlights the marks, which can highlight the details, but is not always what is sought.

Just as the focus of video illumination can pass the impression of proximity, it is possible to carry out the opposite effect by illuminating the most striking side and highlighting the farthest.

Side light

Creating a more dramatic or intense effect in a scene counts more than acting, lighting can intensify this perception of the viewer. This video lighting tactic is professional and is seen in many movies at all times.

This technique of video lighting has origins from paintings from the 17-18 centuries, where artists used in their paintings such lighting. The hint for finding the correct light spot is to find a "triangle" shape on the opposite side of the face:

Backlight

This type of video lighting is very well known in the musical environment, in productions of terror, suspense or involving strong emotions. The work is simpler and can be used with most common LED illuminators. To find the key point of this illumination it is important to make clear the whole face of what is recorded or the main focus of illumination.

It is important in this type of lighting to make clear where the main source of light comes from, since it can be multi-angles behind the subject and work in that direction.

Photo Shovels

To compensate for and balance the video illumination during recording and lessen the need for post-editing treatment, photographic hitters is the best option. The batter in white color, for example compensates for the tones, rebounds the main source light and balances colors and highlights. Photographic studio hitters have up to 7 colors, each one for a particular type of photograph or recording and assists in adjusting hue, intensity, contrast depth and more.

Cross light

This part of professional video lighting requires greater care and knowledge, in which case you need more than one lighting source, such as to find yourself in studio lighting kit. In this tactic, you need to position your illuminators according to whether one becomes the backlight of one subject and there is a side-to-side light. In order to produce professional results and without uneven lighting, both sources must have a good job and reach, maintain the same color tone and temperature, and use accessories such as the studio photographic hitter to assist.


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HOW TO STUDY PHOTOGRAPHY?

Posted on May 29, 2018 at 01:36 PM / Under Photography + Videography

1. HOW DO I LEARN PHOTOGRAPH WITHOUT SPENDING MONEY?

It is very recurrent to receive emails from people who are extremely interested in our courses, but who cannot invest because they are experiencing financial difficulties or being unemployed, but look, this should not be cause for discouragement or reason to leave your dream to over there. We know very well how difficult this situation is, but here are some tips for you to get around the lack of money:

- READ YOUR CAMERA'S MANUAL

Reading the manual of your camera will ensure that you get to know your device. Believe me, this will help you a lot in your photography development and learning.

- USE THE INTERNET

Use the internet a lot. YouTube is an excellent tool for learning photography but follow a reliable channel.

Tracking blogs and pages about photography is also a great way to study without spending money.

- READ PHOTOGRAPHY BOOKS

To save money, buy books that are used in books (the good thing is that the basics of photography do not change) or visit bookstores and read the books right there (most large bookstores allow you to read the books without buying, and even have little sofas for it).

- WORK IN A STUDIO

If you consider becoming a professional in the area, look for a photography company or studio that is offering an internship or vacancy to make coffee. It does not have to be a famous company that you admire from the heart, nor does it have to be an important photographer or photographer. Even because famous and important people probably do not have assistant places thus giving soup.

2. IS IT WORTH TO MAKE PHOTOGRAPHY COURSES?

If you have money to take a course, it is certainly more practical than trying to learn it all on your own. Courses are structured and have an important continuity for learning. A lot that you can take years to learn by yourself, it takes you hours to learn in a course.

Currently the degree is not required to perform the profession of photographer, but a good course will offer you a base that you will not get with free videos on YouTube.

Numerous photography courses are offered for various technical levels, which enable the photographer to be trained or specialize in some area, such as photography, lighting, analog photography, artistic photography fundamentals, objectives, editing software and many others. There is no formal requirement to start photographic studies.

- ONLINE PHOTOGRAPHY COURSES

Many people are seeking training through the internet, which, more and more, offers a modern and intelligent methodology of study. Research shows that, currently, online education exceeds face-to-face teaching by up to 3 times. The interesting thing about online education is the countless options available, monthly tuition fees, increasingly sophisticated learning environments, high availability, courses in all locations in Brazil and the world.

Online education brings flexibility in studies, with no fixed timetables and fixed places to study. The student is free to follow the contents at the most convenient time, as he thinks fit. Distance courses also have dates for submission of papers. Online teaching allows you to work and study more peacefully, teaching material, including video lessons, is available all the time and can be accessed at any time. Teachers are available to ask questions and colleagues are always interacting. And, to finish, the certificate issued by a distance course is worth as much as the one of a face-to-face course.


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