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12x Optical Zoom How Many Feet. In many cases the optical is 3x with the additional 7x being digital. A digital zoom is not the same as an optical one. Thats why theyre so hefty. On the other hand the zoom ratio does give you an idea of how much focal length flexibility the lens has and usually higher numbers are a clue that there will be more compromise on image quality andor price size and weight.

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Just Getting Started with Security Cameras. The same image shot with the Sonys ClearImage digital zoom of 105mm left and cropped from a photo shot with only optical zoom of 70mm right. In this example the equivalent optical zoom measurement would be 6X. A 10x optical zoom in a point shoot digicam is pretty hard to find in a quality SLR lens but there are new 28-300mm lenses that give this huge range. The focal length read as XXmm is the strength with which the lens can focus on an object while the optical zoom the number Xx zoom is the strength of the total zoom. Focal length usually represented in millimeters mm is the basic description of a photographic lens.

If your digital camera is 15MP and has a 12x optical zoom lens with focal length of say 30-360mm then at 30mm your image is 15MP and at 360mm it is still 15MP.

If you have the Powershot S2 which has a 12x zoom range the effective focal length equivalent zoom range is 36 - 432mm 43236 12. Just Getting Started with Security Cameras. Back to the Basics will be every Wednesday at 11AM PST 2PM EST. It will give you the height and width in feet of the coverage area for each lens at full zoom and full wide. In this example the equivalent optical zoom measurement would be 6X. Simply enter the distance in feet from the camera to the area youre trying to record.

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In fact PTZOptics allows you to customize your SDI camera so that you get the perfect camera regardless of the type of production youre working on. Interested in a all around solid SLR digital camera at the best value for. In this video we review how to determine the. Understanding Zoom and Focal Length. If your digital camera is 15MP and has a 12x optical zoom lens with focal length of say 30-360mm then at 30mm your image is 15MP and at 360mm it is still 15MP.

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What is the equivalent of 12x zoom in feet. A 1X optical zoom would be a given focal length divided by itself. If your digital camera is 15MP and has a 12x optical zoom lens with focal length of say 30-360mm then at 30mm your image is 15MP and at 360mm it is still 15MP. In photography we call this a prime lens. This PTZ camera optical zoom calculator can be used to determine the video image created by a PTZ camera when zoomed in at various lengths.

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The calculator uses PTZOptics 12X 20X and 30X lenses to create the height and width of your image in real life. What is the equivalent of 12x zoom in feet. In many cases the optical is 3x with the additional 7x being digital. As far as optical zoom is considered it is generally a good practice to stick to optical and not digital. Interested in a all around solid SLR digital camera at the best value for.

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In this example the equivalent optical zoom measurement would be 6X. So the questions like How do you compare lenses that say 10x optical zoom to mm-mm in SLRs or How to convert Optical Zoom. It will give you the height and width in feet of the coverage area for each lens at full zoom and full wide. It is not a measurement of the actual length of a lens but a calculation of an optical distance from the point where light rays converge to form a sharp image of an object to the digital sensor or 35mm film at the focal plane in the camera. A long telephoto lens for a DSLR like those you see sports photographers using at games has a focal length of between 500-1000mm.

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Just Getting Started with Security Cameras. A long telephoto lens for a DSLR like those you see sports photographers using at games has a focal length of between 500-1000mm. This PTZ camera optical zoom calculator can be used to determine the video image created by a PTZ camera when zoomed in at various lengths. A good rule of thumb is that if you want to ID someone at 100 feet you need at least 4x zoom. Find the one that best matches your intended shot and contact.

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Get the SCW Beginners Guide. The focal length read as XXmm is the strength with which the lens can focus on an object while the optical zoom the number Xx zoom is the strength of the total zoom. Interested in a all around solid SLR digital camera at the best value for. If your digital camera is 15MP and has a 12x optical zoom lens with focal length of say 30-360mm then at 30mm your image is 15MP and at 360mm it is still 15MP. The same image shot with the Sonys ClearImage digital zoom of 105mm left and cropped from a photo shot with only optical zoom of 70mm right.

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Optical zoom is important feature as would like to capture good wildlife pictures. Find the one that best matches your intended shot and contact. These are second-generation PTZ cameras with optical zoom lenses in 12X 20X and 30X which means that you can choose the one that best suits your needsThey are high-definition cameras that are built to accommodate professional video productions. Take the maximum focal length that the interchangeable zoom lens can achieve say 300mm and divide it by the minimum focal length say 50mm. As far as optical zoom is considered it is generally a good practice to stick to optical and not digital.

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These are second-generation PTZ cameras with optical zoom lenses in 12X 20X and 30X which means that you can choose the one that best suits your needsThey are high-definition cameras that are built to accommodate professional video productions. If you have the Powershot S2 which has a 12x zoom range the effective focal length equivalent zoom range is 36 - 432mm 43236 12. In this example the equivalent optical zoom measurement would be 6X. Those numbers probably wont mean much to you but they mean that the zoom range goes from modest wide angle 36mm to powerful telephoto 432mm. The 12 is a ratio all it says is that the longest focal length is 12 times longer than the shortest one.

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The 12 is a ratio all it says is that the longest focal length is 12 times longer than the shortest one. Interested in a all around solid SLR digital camera at the best value for. The focal length read as XXmm is the strength with which the lens can focus on an object while the optical zoom the number Xx zoom is the strength of the total zoom. If you use a 10x optical zoom and mix that with a 2x digital zoom or crop you get a 20x hybrid zoom. A 10x optical zoom in a point shoot digicam is pretty hard to find in a quality SLR lens but there are new 28-300mm lenses that give this huge range.

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The calculator uses PTZOptics 12X 20X and 30X lenses to create the height and width of your image in real life. An 18-55mm and a 70-200mm are both about 3x zoom but a very different range. A long telephoto lens for a DSLR like those you see sports photographers using at games has a focal length of between 500-1000mm. Just Getting Started with Security Cameras. A 10x optical zoom in a point shoot digicam is pretty hard to find in a quality SLR lens but there are new 28-300mm lenses that give this huge range.

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The optical zoom comes from lenses with long focal lengths that are at least relative to the cameras sensor size. An 18-55mm and a 70-200mm are both about 3x zoom but a very different range. If your digital camera is 15MP and has a 12x optical zoom lens with focal length of say 30-360mm then at 30mm your image is 15MP and at 360mm it is still 15MP. Smartphone Limitations Photo results were less. The focal length read as XXmm is the strength with which the lens can focus on an object while the optical zoom the number Xx zoom is the strength of the total zoom.

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In reply to cgerrard Sep 17 2009. This PTZ camera optical zoom calculator can be used to determine the video image created by a PTZ camera when zoomed in at various lengths. With an interchangeable lens camera you can calculate the optical zoom measurement yourself by using a simple mathematical formula. A 10x optical zoom in a point shoot digicam is pretty hard to find in a quality SLR lens but there are new 28-300mm lenses that give this huge range. Many a times people are confused while comparing the zoom lens of a DSLR Digital SLR camera to a Non SLR lensUsually a DSLR lens shows the zoom capacity in mm while other non DSLR cameras show the zoom in the form nX for example 5X 10X 30X or 42X.

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Do not compare optical zoom with megapixel resolution because optical zoom is not megapixel resolution-dependent. The 12 is a ratio all it says is that the longest focal length is 12 times longer than the shortest one. A 10120mm lens is a 12 zoom but so is a 1001200mm lens. If you use a 10x optical zoom and mix that with a 2x digital zoom or crop you get a 20x hybrid zoom. Simply enter the distance in feet from the camera to the area youre trying to record.

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The question doesnt make sense. A good rule of thumb is that if you want to ID someone at 100 feet you need at least 4x zoom. With camcorders the optical zoom typically ranges from 10x to 64x while the digital zoom can go from 100x to 1000x. The optical zoom comes from lenses with long focal lengths that are at least relative to the cameras sensor size. In reply to cgerrard Sep 17 2009.

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The 1st episode of our new Facebook Live Show. Many a times people are confused while comparing the zoom lens of a DSLR Digital SLR camera to a Non SLR lensUsually a DSLR lens shows the zoom capacity in mm while other non DSLR cameras show the zoom in the form nX for example 5X 10X 30X or 42X. That is the resolution of your final image does not change no matter how much you zoom in. Do not compare optical zoom with megapixel resolution because optical zoom is not megapixel resolution-dependent. In reply to cgerrard Sep 17 2009.

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Take the maximum focal length that the interchangeable zoom lens can achieve say 300mm and divide it by the minimum focal length say 50mm. A 10120mm lens is a 12 zoom but so is a 1001200mm lens. With an interchangeable lens camera you can calculate the optical zoom measurement yourself by using a simple mathematical formula. Many a times people are confused while comparing the zoom lens of a DSLR Digital SLR camera to a Non SLR lensUsually a DSLR lens shows the zoom capacity in mm while other non DSLR cameras show the zoom in the form nX for example 5X 10X 30X or 42X. A 1X optical zoom would be a given focal length divided by itself.

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Understanding Zoom and Focal Length. What is the equivalent of 12x zoom in feet. It will give you the height and width in feet of the coverage area for each lens at full zoom and full wide. This PTZ camera optical zoom calculator can be used to determine the video image created by a PTZ camera when zoomed in at various lengths. If you have the Powershot S2 which has a 12x zoom range the effective focal length equivalent zoom range is 36 - 432mm 43236 12.

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If youre going to ID someone at 200 feet you need 20x and if you need to recognize someone at 250 feet you need 30x zoom. If your digital camera is 15MP and has a 12x optical zoom lens with focal length of say 30-360mm then at 30mm your image is 15MP and at 360mm it is still 15MP. Thats why theyre so hefty. F55mm wide - 50 tele. Find the one that best matches your intended shot and contact.

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