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It is not the same thing as asa or iso any type of Photography. Also known as EV (exposure value) or LV (light value), it is a numerical representation of the amount of light reaching the film. Shutter speed and aperture are the main inputs into the mathematical equation used to arrive at the value. Most photographers need not be concerned with EV, but if needed, would rely on an EV table or light meter scale rather than do the math. At F1 and 1 second, the EV is 0. Each halving of the exposure increments the value by +1; each doubling of the exposure by -1. Thus 1 second at F2 is EV 2 (don't forget that this is TWO stops as F1.4 comes between F1 and F2).

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Q: Is exposure index the same as asa in film photography?
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What are the photos with multiple frames in the same photo called mostly used for action shots such as bmx and skateboard?

Multiple-exposure photography.


What is steriography?

Spelled STEREOGRAPHY it is tha same as stereo photography.


Definition of multiple exposure in photography?

A "multiple exposure" means that two or more exposures are made on the same frame of film. There are various reasons why multiple exposures are taken. Generally, people will reduce each exposure by half to arrive at a single exposure's exposure value. Others lay down 1/3 + 1/3, believing that the pre-sensitized film is more receptive to light, thus 1/3 +1/3 = 1. I think they are both right, depending on the scene. Here are a few reasons for multiple exposures, with examples: Individual exposures of different scenes (may be difficult to place elements of successive images) - night shot of cityscape with a moon added later. Same scene with elements added or changed for the second exposure - at night outdoors with electronic flash, insert person on second shot - expose each for half. Person's shadow may be slightly visible in second shot, but they will look "ghostly". Same scene twice, once out of focus, once in focus. I have seen examples of the surrealism one can create, but the degree of being out of focus and portion of the exposure value I cannot remember. Experiment and take notes or Google something. Three stops down exposure of an out of focus 18% neutral gray card, then a minus 1/3 exposure of a high contrast scene. You can make a subtle yet significant reduction in contrast on transparency (slide) film. For example, flowers in the bright sunlight spattered shade of trees. The -1/3 should keep the "sun spots" from blowing out, while the pre-exposure raises shadow detail because the film has been "woken up" as I put it. I've always believed my camera bag is the gray it is for a reason...I have used it for this purpose, substituting it for a gray card. Now for the bad. Multiple exposures occur when you rewind the film, don't rewind all the way into the container, then load it normally at a later date and use it again. If your film camera has a multiple exposure lever to prevent film transport, any of these are relatively easy to manipulate. Otherwise, you have to advance to set the shutter then depress the film transport button on the bottom of the camera and rewind a specified amount. Your camera manual may indicate how much, but it's a real hit-and-miss proposition if accurate registration is needed for the second shot but I have done it.


What is Metadata in photography?

In digital photography, metadata is the information describing the image and stored with it - either in the same file, or along side it (in a database or in a companion file). Some of this data comes directly from the camera that took the pictures: date, time, exposure, aperture, ISO, camera and lens model, etc. Some is added by the photographer during post-processing: title, location, scene, key words, etc.


What is panning mean in photography?

In still photography, it involves keeping a subject in the view finder when it is moving diagonally or transversely with respect to the photographers position. The exposure is made while the camera is following and does not stop until the shutter has closed. The effect varies with the speed of the pan (due to the speed of the subject) and the shutter speed used. Slower shutter speeds and fast pans will blur the background extensively while the subject is rendered more sharply. If this is a car, most of it would be sharp if done correctly. However, a running person's torso may be relatively sharp while their legs and arms would not be. With manual focused lenses, it is necessary to pre-focus on the same plane that the subject will be in at the anticipated moment of exposure before the pan begins. In motion picture photography, panning involves moving the camera through a range of distance while the film/video is running (the images are being taken).

Related questions

Would you go to the same school for film making and photography?

Yes


What are the photos with multiple frames in the same photo called mostly used for action shots such as bmx and skateboard?

Multiple-exposure photography.


How do you change techniques for a given part while keeping the same density on a film?

This seems to be a question more suitable to a professional. It appears to have to do with the amount of exposure given to a specific section of the film. Different degrees of radiation exposure and using different radiograph machines can affect the film while not changing the density.


How is color photography the same as black and white photography?

Sepia


What is the french word for index?

the same, index.


Why is the numerical expression of the sensitivity of a photographic film called speed?

A more sensitive film will capture a picture with a shorter exposure. Because it takes less time to do the same thing, we say it is happening at a greater speed.


What is a vanguard total bong market index fund?

A vanguard total bong market index fund is set up to provide exposure for US markets. (Us grade investment bonds) People can invest in this, but the risk is always the same such as fluctuating interest rates and decreasing price of the bond.


Definition of multiple exposure in photography?

A "multiple exposure" means that two or more exposures are made on the same frame of film. There are various reasons why multiple exposures are taken. Generally, people will reduce each exposure by half to arrive at a single exposure's exposure value. Others lay down 1/3 + 1/3, believing that the pre-sensitized film is more receptive to light, thus 1/3 +1/3 = 1. I think they are both right, depending on the scene. Here are a few reasons for multiple exposures, with examples: Individual exposures of different scenes (may be difficult to place elements of successive images) - night shot of cityscape with a moon added later. Same scene with elements added or changed for the second exposure - at night outdoors with electronic flash, insert person on second shot - expose each for half. Person's shadow may be slightly visible in second shot, but they will look "ghostly". Same scene twice, once out of focus, once in focus. I have seen examples of the surrealism one can create, but the degree of being out of focus and portion of the exposure value I cannot remember. Experiment and take notes or Google something. Three stops down exposure of an out of focus 18% neutral gray card, then a minus 1/3 exposure of a high contrast scene. You can make a subtle yet significant reduction in contrast on transparency (slide) film. For example, flowers in the bright sunlight spattered shade of trees. The -1/3 should keep the "sun spots" from blowing out, while the pre-exposure raises shadow detail because the film has been "woken up" as I put it. I've always believed my camera bag is the gray it is for a reason...I have used it for this purpose, substituting it for a gray card. Now for the bad. Multiple exposures occur when you rewind the film, don't rewind all the way into the container, then load it normally at a later date and use it again. If your film camera has a multiple exposure lever to prevent film transport, any of these are relatively easy to manipulate. Otherwise, you have to advance to set the shutter then depress the film transport button on the bottom of the camera and rewind a specified amount. Your camera manual may indicate how much, but it's a real hit-and-miss proposition if accurate registration is needed for the second shot but I have done it.


What is steriography?

Spelled STEREOGRAPHY it is tha same as stereo photography.


What is a golf index?

A golf index is the same thing as a golf handicap - it measures a golfer's ability.


What is a new name of photography?

Photography's name as a medium of 2D images hasn't changed. Many of the processes have changed with technology. In some cases there are overlaps with other mediums in part due to the digital convergence. Traditionally photography uses chemical processes to fix an image from a projection of light. This was most commonly the film within a camera with the camera being a means to mount a lens to focus the light and through mechanical processes to make an exposure - the amount of light as a ratio of the aperture of the lens and the shutter determining the length of exposure to the light sensitive material (film). The third factor of the basic principals relates to the photo sensitivity of the film (now called ISO, previously called ASA). In more recent times the film has been replaced by a sensor which is also light sensitive when charged. The exposure is still controlled by a balance of aperture and exposure length. The image is briefly recorded by the sensor and the information is transferred as a file to a storage device such as a removable disk or card. Digital cameras range from those you may have in your cell phone to highly specialized devices like those on the rovers on Mars, but they all work fundamentally the same way. Many of the changes in the medium we call photography have to do with how the image is manipulated after the photo is captured. Using software like Photoshop and After Effects (both made by Adobe, but there are many similar programs made by a wide range of companies) the images can be completely changed, combined and output in 2D, 3D or as part of a motion process (animated). The flexibility this offers with wide and diverse options has lead some to question if it is still "photography" or perhaps should be called by another term. Early in digital photography the manipulation of digital files was sometimes referred to as "digital imaging". It can also be called "post production" as in after the image capture (production). You may opt to simply use "Digital Photography" to differentiate the capture process from traditional chemical based processes. New output options including high-end inkjet printers, distribution by the internet and video media allow images to be projected on building, printed on clothing and shared on your phone. I believe these all still have their basis in photography if the image or contributing elements were created by capturing light. John Lacy proshooter.com John Lacy has been a commercial photography since 1987 and was first published nationally in the US in 1981.


Photograph and picture the same?

no, because the photography is the input or the processing of how we see the output or the pictures, but without photography we cant see the images that we produce..