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<blockquote data-quote="Joseph Bautsch" data-source="post: 14017" data-attributes="member: 654"><p>The ideal f/stop, for most lenses, for scenic shooting is f/11 up to f/18. That range gives you the best depth of field and takes advantage of the sharpest area of the lens. At f/22 and above you get light refraction around the shutter blades and the image actually gets less sharp. Below f/11 the depth of field starts falling off. Every lens will have it's sweet spot (it's sharpest point and best depth of field) somewhere between f/11 and f/18. An ND filter does only one thing; reduce the amount of light coming into the lens. A graduated ND is used to block the light coming from certain areas of the shot, such as a sunset or sun rise. This in effect reduces the f/stop range so that you get details in the foreground shadows and details in the rising or setting sun. ND filters are great for reducing the f/stop range of a scene (A DSLR camera has about a six f/stop exposure range for max details in shadows and highlights) to get the exposure into the f/11 to f/18 range and/or to slow the shutter speed to show motion such as water falls. CPL filters not only take out glare and reflected light but also act as a 1 1/2 stop ND filter.</p></blockquote><p></p>

[QUOTE="Joseph Bautsch, post: 14017, member: 654"] The ideal f/stop, for most lenses, for scenic shooting is f/11 up to f/18. That range gives you the best depth of field and takes advantage of the sharpest area of the lens. At f/22 and above you get light refraction around the shutter blades and the image actually gets less sharp. Below f/11 the depth of field starts falling off. Every lens will have it's sweet spot (it's sharpest point and best depth of field) somewhere between f/11 and f/18. An ND filter does only one thing; reduce the amount of light coming into the lens. A graduated ND is used to block the light coming from certain areas of the shot, such as a sunset or sun rise. This in effect reduces the f/stop range so that you get details in the foreground shadows and details in the rising or setting sun. ND filters are great for reducing the f/stop range of a scene (A DSLR camera has about a six f/stop exposure range for max details in shadows and highlights) to get the exposure into the f/11 to f/18 range and/or to slow the shutter speed to show motion such as water falls. CPL filters not only take out glare and reflected light but also act as a 1 1/2 stop ND filter. [/QUOTE]

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