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Offline Neil Obstat

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What is FAKE about P900 sunset videos online? Plenty!
« on: June 12, 2018, 06:59:54 AM »
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    Thousands of fake videos plague the Internet depicting the setting sun appearing to be very large in the sky, then shrinking as it approaches the horizon. It has been a plague for several years now, and very few rebuttals are to be found, which means that viewers are clicking on the lies and they're ignoring the truth that exposes the lie. Especially deceptive is how the sun is made to appear to rise up from the horizon when the P900 zooms in to its maximum telephoto position.
    .
    Here is a website that warns quite firmly against taking pictures of the sun directly without a proper solar filter. There are not a few YouTube videos that instruct a handy person how to make your own solar filter, but if you make it wrong, you could go blind or ruin your camera.
    .
    (Quote)
    The Sun, our source of light and warmth, is a notoriously poor photographic target, due to its extreme brightness and constant emissions of damaging ultraviolet and infrared radiation. However, with the right equipment, the sun can be a challenging and rewarding photographic subject.
    .
    The sun, like the moon, is above the horizon and in our skies half of the time. However, unlike the moon, when the sun is above the horizon, it is always visible (unless it is cloudy). The moon progresses through different phases as it orbits our planet, from new to full and back to new. The sun, unless blocked by said moon during an eclipse, is always a brilliant round disk.
    .
    Many of us have pointed our cameras in the direction of a setting or rising sun and millions of sunrise and sunset photographs populate Instagram and other social media sites and gallery walls. But, when the sun is overhead, it is much too bright to view directly. Photographing it requires specialized gear.
    .
    This article will outline the basics of solar photography. For information on photographing a solar eclipse, click here. As you might notice, the two articles are similar because the subject is, more or less, identical.
    .
    Safety First
    DO NOT look at the sun with your naked eyes. Permanent damage to your eyesight, and even blindness, may result. ALWAYS wear certified solar viewing glasses when viewing the sun. We have all glanced at the sun, but prolonged exposure causes permanent damage.
    .
    DO NOT point a camera at the sun unless the optics are fitted with a certified solar filter. Optics can magnify the intensity and brightness of sunlight, and this can cause damage to your equipment. There are many myths about the sun and its ability to destroy a camera, so we did some testing to see what the danger was. Check out the results here.
    .
    DO NOT look through the viewfinder of an unfiltered SLR camera when it is pointed at or near the sun because of the increase in intensity and brightness of the sunlight passing through magnifying optics. If using a dark ND filter, you should still not use the optical viewfinder of the camera.
    .
    DO NOT look through the viewfinder of a rangefinder camera when it is pointed at or near the sun, because the optical viewfinder will not protect your eyes from the sun’s damaging light.
    .
    DO NOT point an unfiltered digital camera at the sun and use live view or an electronic viewfinder, due to the possibility of damaging the sensor with concentrated, unfiltered sunlight. Our tests did not damage the sensor in our camera, but we cannot guarantee that other atmospheric or physical conditions will have the same result.
    .
    Basic Solar Photography Gear
    Solar viewing glasses. You will want a pair of these when aiming your camera at the bright sun.
    .
    Tripod. The sun is bright, but when filtered with a solar filter, your shutter speeds will be slower. Especially if you’re using a super-telephoto focal length lens, telescope, or spotting scope, you will want the added stability of a tripod. A tripod will also help you get the sharpest possible image.
    .
    Remote shutter release. When firing your camera on a tripod, a remote shutter release (threaded, wired, or remote) will also help reduce vibrations.
    .
    Gear: Solar Filters
    When photographing the sun, you will need a solar filter for your camera and lens. Several online tutorials mention using a neutral density filter or stacking several neutral density filters. I ONLY recommend using a properly designated solar filter. I am not alone in this recommendation. Experts at NASA, the National Science Foundation, the American Astronomical Society, Nikon, Space.com, Sky & Telescopemagazine, and others all recommend solar filters instead of neutral density filters. Why? Because these are the only filters designed for viewing the sun, and they are constructed not only to dim the sunlight sufficiently, but they also protect your eyes and equipment from non-visible IR and UV radiation. Solar photography is NOT the time to experiment with homemade filtration concoctions to save a few bucks.
    .
    However, there are some ND filters out there marketed for solar photography. If you are looking for this type of filter, it looks like the consensus among brands is that 16 stops is the minimum strength for a filter. In comparing different brands, there was a dramatic difference between the light transmission of one brand’s 16.5-stop filter and a competing brand. Use at your own risk!
    .
    WARNING: Do NOT use these ND filters with an optical viewfinder! Many come with fine-print on their packaging, so use due diligence and stick to using your Live View mode or an electronic viewfinder.
    .
    Your safest option is a solar filter, but the optical glass ND filter may have other uses besides solar photography.
    .
    When it comes to solar filters, you have several options: filter sheet, screw-on front filter, or a solar filter that mounts between the camera and lens on an interchangeable lens setup.
    .
    Filter sheet
    Mylar white-light solar filters come in different shapes and sizes. Some, like the one included in this Celestron EclipSmart kit, are round and have tether holes to secure to your camera and/or lens. Many veteran observers also use sheets of #14 Welder’s Glass, which they mount or hold in front of the camera.

    This is how big the filtered sun is if you photograph it with a 50mm lens on a full-frame camera.

    .
    What this means is that, with a wide-angle lens, the sun is very small in your frame. With a standard-length telephoto lens, the sun is slightly larger, but not frame-filling. To fill your viewfinder, you will likely need to go well past a 300mm focal-length lens.


    This is the size of the sun through a filtered 300mm lens on an APS-C camera
    (35mm-equivalent of 450mm).

    .
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    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #1 on: June 12, 2018, 07:21:13 AM »
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    Nonetheless, after many such websites as the OP shows warn people not to abuse their camera or risk going blind by looking directly at the sun, there are those who do it anyway. 
    .
    Additionally, some who take photos or even videos of the setting sun do not use a solar filter, and thereby acquire tremendous aberration flare in their picture of the sun, if they don't ruin their camera in the process or permanently damage their eyes. 
    .
    The image you get of the setting sun without a solar filter is entirely erroneous. The sun can appear to be hundreds of times larger than it is in fact due to the flare surrounding the sun and in the camera lens. This flare appears to become smaller in size when the telephoto is zoomed in, which is contrary to what anyone would expect, until you get experience in photography. When the flare gets smaller, without knowing any better, it looks entirely as if the sun is getting smaller, and therefore the sun appears to rise up in the sky when the camera's zoom is used to enlarge the picture -- the picture is enlarged but the sun flare remains the same percentage of the frame size, making the sun appear to rise up above the ground level. If you have any clouds going by or tall trees next to the sun, you will see the top of the sun also appears to move DOWN on top, while the bottom of the sun appears to move UP. 
    .
    Here is one video that shows this happening. The sun is shown setting without a solar filter and with one, alternatively.
    Notice how much larger the sun seems to be without the filter and how much smaller the sun actually is when the filter is used:
    .

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    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #2 on: June 12, 2018, 02:29:43 PM »
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    ...and you will know the truth, and the truth shall set you free (John 8:32).
    .

    .
    "Solar photography is NOT the time to experiment with homemade filtration concoctions to save a few bucks."
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    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #3 on: June 15, 2018, 02:48:32 AM »
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    The video I linked two posts above...

    .
    ...has a tiny circular bright spot on the left half of the cover image (what you see right here, above). That little round spot is an internal lens refraction that reflects the actual size of the sun in that frame. Therefore, you can easily see how much larger the flare image of the sun on the right side is, compared to the small bright spot on the left side.
    .
    When the zoom is used as if to enlarge the sun, that small circle will get bigger gradually, but it does not get as big as the flare surrounding the sun. The center of the latter remains true, and at that center is where you can imagine the small circle to be located and in that way you can see (by imagining it) how big and where the sun's image would appear if you had been using a solar filter.
    .
    .--. .-.-.- ... .-.-.- ..-. --- .-. - .... . -.- .. -. --. -.. --- -- --..-- - .... . .--. --- .-- . .-. .- -. -.. -....- -....- .--- ..- ... - -.- .. -.. -.. .. -. --. .-.-.

    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #4 on: June 17, 2018, 12:50:54 AM »
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    The video I posted above shows alternating footage of the sun without a solar filter (A) and with a solar filter (B).
    He used two cameras simultaneously and then merged the video into one so you can see views A, B, A, B, A, B.
    The small bright circle on the left side is seen for a second in A, the same size as the sun itself when the solar filter is used (B).
    See for yourself.
    It's at 0:01, 0:16, and 0:43.
    Also, in the solar filter footage, B, you can see rough concentric circles surrounding the tiny sun, from the flares cut out by filter.
    This is very simple.
    .--. .-.-.- ... .-.-.- ..-. --- .-. - .... . -.- .. -. --. -.. --- -- --..-- - .... . .--. --- .-- . .-. .- -. -.. -....- -....- .--- ..- ... - -.- .. -.. -.. .. -. --. .-.-.


    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #5 on: June 19, 2018, 07:08:42 PM »
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    Flat-earthers recognize when they haven't got a chance! 
    Like an ice cube in hell.
    .--. .-.-.- ... .-.-.- ..-. --- .-. - .... . -.- .. -. --. -.. --- -- --..-- - .... . .--. --- .-- . .-. .- -. -.. -....- -....- .--- ..- ... - -.- .. -.. -.. .. -. --. .-.-.

    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #6 on: August 24, 2018, 12:58:00 PM »
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    At least flat-earthdom syndromers realize when they have no chance. Perhaps there is still hope for them. 
    .--. .-.-.- ... .-.-.- ..-. --- .-. - .... . -.- .. -. --. -.. --- -- --..-- - .... . .--. --- .-- . .-. .- -. -.. -....- -....- .--- ..- ... - -.- .. -.. -.. .. -. --. .-.-.

    Offline happenby

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #7 on: August 24, 2018, 10:26:15 PM »
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  • .
    Thousands of fake videos plague the Internet depicting the setting sun appearing to be very large in the sky, then shrinking as it approaches the horizon. It has been a plague for several years now, and very few rebuttals are to be found, which means that viewers are clicking on the lies and they're ignoring the truth that exposes the lie. Especially deceptive is how the sun is made to appear to rise up from the horizon when the P900 zooms in to its maximum telephoto position.
    .
    Here is a website that warns quite firmly against taking pictures of the sun directly without a proper solar filter. There are not a few YouTube videos that instruct a handy person how to make your own solar filter, but if you make it wrong, you could go blind or ruin your camera.
    .
    (Quote)
    The Sun, our source of light and warmth, is a notoriously poor photographic target, due to its extreme brightness and constant emissions of damaging ultraviolet and infrared radiation. However, with the right equipment, the sun can be a challenging and rewarding photographic subject.
    .
    The sun, like the moon, is above the horizon and in our skies half of the time. However, unlike the moon, when the sun is above the horizon, it is always visible (unless it is cloudy). The moon progresses through different phases as it orbits our planet, from new to full and back to new. The sun, unless blocked by said moon during an eclipse, is always a brilliant round disk.
    .
    Many of us have pointed our cameras in the direction of a setting or rising sun and millions of sunrise and sunset photographs populate Instagram and other social media sites and gallery walls. But, when the sun is overhead, it is much too bright to view directly. Photographing it requires specialized gear.
    .
    This article will outline the basics of solar photography. For information on photographing a solar eclipse, click here. As you might notice, the two articles are similar because the subject is, more or less, identical.
    .
    Safety First
    DO NOT look at the sun with your naked eyes. Permanent damage to your eyesight, and even blindness, may result. ALWAYS wear certified solar viewing glasses when viewing the sun. We have all glanced at the sun, but prolonged exposure causes permanent damage.
    .
    DO NOT point a camera at the sun unless the optics are fitted with a certified solar filter. Optics can magnify the intensity and brightness of sunlight, and this can cause damage to your equipment. There are many myths about the sun and its ability to destroy a camera, so we did some testing to see what the danger was. Check out the results here.
    .
    DO NOT look through the viewfinder of an unfiltered SLR camera when it is pointed at or near the sun because of the increase in intensity and brightness of the sunlight passing through magnifying optics. If using a dark ND filter, you should still not use the optical viewfinder of the camera.
    .
    DO NOT look through the viewfinder of a rangefinder camera when it is pointed at or near the sun, because the optical viewfinder will not protect your eyes from the sun’s damaging light.
    .
    DO NOT point an unfiltered digital camera at the sun and use live view or an electronic viewfinder, due to the possibility of damaging the sensor with concentrated, unfiltered sunlight. Our tests did not damage the sensor in our camera, but we cannot guarantee that other atmospheric or physical conditions will have the same result.
    .
    Basic Solar Photography Gear
    Solar viewing glasses. You will want a pair of these when aiming your camera at the bright sun.
    .
    Tripod. The sun is bright, but when filtered with a solar filter, your shutter speeds will be slower. Especially if you’re using a super-telephoto focal length lens, telescope, or spotting scope, you will want the added stability of a tripod. A tripod will also help you get the sharpest possible image.
    .
    Remote shutter release. When firing your camera on a tripod, a remote shutter release (threaded, wired, or remote) will also help reduce vibrations.
    .
    Gear: Solar Filters
    When photographing the sun, you will need a solar filter for your camera and lens. Several online tutorials mention using a neutral density filter or stacking several neutral density filters. I ONLY recommend using a properly designated solar filter. I am not alone in this recommendation. Experts at NASA, the National Science Foundation, the American Astronomical Society, Nikon, Space.com, Sky & Telescopemagazine, and others all recommend solar filters instead of neutral density filters. Why? Because these are the only filters designed for viewing the sun, and they are constructed not only to dim the sunlight sufficiently, but they also protect your eyes and equipment from non-visible IR and UV radiation. Solar photography is NOT the time to experiment with homemade filtration concoctions to save a few bucks.
    .
    However, there are some ND filters out there marketed for solar photography. If you are looking for this type of filter, it looks like the consensus among brands is that 16 stops is the minimum strength for a filter. In comparing different brands, there was a dramatic difference between the light transmission of one brand’s 16.5-stop filter and a competing brand. Use at your own risk!
    .
    WARNING: Do NOT use these ND filters with an optical viewfinder! Many come with fine-print on their packaging, so use due diligence and stick to using your Live View mode or an electronic viewfinder.
    .
    Your safest option is a solar filter, but the optical glass ND filter may have other uses besides solar photography.
    .
    When it comes to solar filters, you have several options: filter sheet, screw-on front filter, or a solar filter that mounts between the camera and lens on an interchangeable lens setup.
    .
    Filter sheet
    Mylar white-light solar filters come in different shapes and sizes. Some, like the one included in this Celestron EclipSmart kit, are round and have tether holes to secure to your camera and/or lens. Many veteran observers also use sheets of #14 Welder’s Glass, which they mount or hold in front of the camera.

    This is how big the filtered sun is if you photograph it with a 50mm lens on a full-frame camera.

    .
    What this means is that, with a wide-angle lens, the sun is very small in your frame. With a standard-length telephoto lens, the sun is slightly larger, but not frame-filling. To fill your viewfinder, you will likely need to go well past a 300mm focal-length lens.


    This is the size of the sun through a filtered 300mm lens on an APS-C camera
    (35mm-equivalent of 450mm).

    .



    Above is a lot of blather.
    I have a P900 and have taken plenty of photos of the sun, the moon and the stars.  The camera came with 3 filters, an electronic shutter, a tripod and all the accouterments necessary to take all kinds of pictures to show that earth is not a globe.  


    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #8 on: August 24, 2018, 11:38:31 PM »
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  • .
    WOOPS!
    .
    See here what happens to happenby?  She can't tolerate the possibility of recovering from her illness.
    She is quite smug and satiated in her flat-earthdom syndrome.
    The mere mention of the possibility that there is hope for her to get better and stop being mentally sick, is useless!
    That's correct!
    The mere mention of there possibly being hope for them and she bristles with rage, shrill, intractable, obstreperous nescience!
    .--. .-.-.- ... .-.-.- ..-. --- .-. - .... . -.- .. -. --. -.. --- -- --..-- - .... . .--. --- .-- . .-. .- -. -.. -....- -....- .--- ..- ... - -.- .. -.. -.. .. -. --. .-.-.

    Offline happenby

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #9 on: August 25, 2018, 12:59:30 PM »
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  • As Scripture attests, the earth is not a spinning globe, but it is the macrocosm of the Catholic Church.  It is level, central to Faith and God's creation is central to truth.

    Offline Neil Obstat

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    Re: What is FAKE about P900 sunset videos online? Plenty!
    « Reply #10 on: August 25, 2018, 02:43:22 PM »
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  • As Scripture attests, the earth is not a spinning globe, but it is the macrocosm of the Catholic Church.  It is level, central to Faith and God's creation is central to truth.
    .
    Provide the Book, chapter and verse where it has "the earth is not a spinning globe, but the macrocosm of the Catholic Church."
    .
    Or is that too much to ask -- prolly.
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