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<p>[QUOTE="RonSanderson, post: 2636281, member: 77413"]The macro attachment may be worth trying.</p><p><br /></p><p>The iPhone 6s is what I have, too. It has a fixed wide-angle lens. If you hold the camera at its closest focus, about 4 inches, and zoom all the way out to wide angle, you can see exactly how much of the sensor is covered by an image of the coin.</p><p><br /></p><p>When you zoom in, these relatively few pixels are digitally sampled and interpolated to form the final image you record. I just was not able to overcome this limitation, although with a lot of experimentation with lighting, white balance, and exposure I achieved results I liked. However, they did lack fully sharp detail.</p><p><br /></p><p>In post <a href="https://www.cointalk.com/threads/post-your-coin-photography-set-up.229658/page-6#post-2611861" class="internalLink ProxyLink" data-proxy-href="https://www.cointalk.com/threads/post-your-coin-photography-set-up.229658/page-6#post-2611861">#113</a> above I compare images from the iPhone to a Sony superzoom DSC-H9. This camera is about 10 years old and does have its limitations.</p><p><br /></p><p>First, its macro mode is limited. By moving the elements within the lens, you can use zoom with macro. It doesn't really make the image bigger in this mode, but does let you move the camera further away so it doesn't get in the way of the lighting. The image of a Lincoln cent occupies the center 1/3 of height and width of the display, so that means the image only covers about 1/9 of the sensor. It's not a true macro as it's defined earlier in this thread.</p><p><br /></p><p>Second, it does not have "live view" where the camera is controlled by the computer. It does have a video cable attachment for showing images from the camera on a TV. I use this to hook the camera to my computer monitor, and by luck whatever is showing in the camera display also shows on the monitor.</p><p><br /></p><p>However, the resolution of the image is very poor and you can't really see the coin in focus. The camera also has a remote control that lets me snap the shutter without touching the camera. When the shutter button is pushed, the camera does its final autofocus and the resulting image is quite sharp.</p><p><br /></p><p>Third, the batteries are shot, so I had to get an external power supply. This is not an issue when the setup is already tied to a tripod and cabled to the monitor, and it lets me shoot as long as I want without worrying about batteries.</p><p><br /></p><p>In any case, I think the macro lens could help you. It will magnify the image before it gets into the camera, so you really will be covering more pixels with the coin. This should get you past the graininess you see when you zoom into my iPhone pictures.[/QUOTE]</p><p><br /></p>
[QUOTE="RonSanderson, post: 2636281, member: 77413"]The macro attachment may be worth trying. The iPhone 6s is what I have, too. It has a fixed wide-angle lens. If you hold the camera at its closest focus, about 4 inches, and zoom all the way out to wide angle, you can see exactly how much of the sensor is covered by an image of the coin. When you zoom in, these relatively few pixels are digitally sampled and interpolated to form the final image you record. I just was not able to overcome this limitation, although with a lot of experimentation with lighting, white balance, and exposure I achieved results I liked. However, they did lack fully sharp detail. In post [URL='https://www.cointalk.com/threads/post-your-coin-photography-set-up.229658/page-6#post-2611861']#113[/URL] above I compare images from the iPhone to a Sony superzoom DSC-H9. This camera is about 10 years old and does have its limitations. First, its macro mode is limited. By moving the elements within the lens, you can use zoom with macro. It doesn't really make the image bigger in this mode, but does let you move the camera further away so it doesn't get in the way of the lighting. The image of a Lincoln cent occupies the center 1/3 of height and width of the display, so that means the image only covers about 1/9 of the sensor. It's not a true macro as it's defined earlier in this thread. Second, it does not have "live view" where the camera is controlled by the computer. It does have a video cable attachment for showing images from the camera on a TV. I use this to hook the camera to my computer monitor, and by luck whatever is showing in the camera display also shows on the monitor. However, the resolution of the image is very poor and you can't really see the coin in focus. The camera also has a remote control that lets me snap the shutter without touching the camera. When the shutter button is pushed, the camera does its final autofocus and the resulting image is quite sharp. Third, the batteries are shot, so I had to get an external power supply. This is not an issue when the setup is already tied to a tripod and cabled to the monitor, and it lets me shoot as long as I want without worrying about batteries. In any case, I think the macro lens could help you. It will magnify the image before it gets into the camera, so you really will be covering more pixels with the coin. This should get you past the graininess you see when you zoom into my iPhone pictures.[/QUOTE]
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