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	<title>Rational Scope &#187; Camera Lens</title>
	<atom:link href="http://rationalscope.com/category/camera-lens/feed/" rel="self" type="application/rss+xml" />
	<link>http://rationalscope.com</link>
	<description>Rational Microscopes, Telescopes and Binoculars</description>
	<lastBuildDate>Mon, 15 Mar 2010 17:36:24 +0000</lastBuildDate>
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		<title>Canon ET54 Lens Hood for EF 55-200mm f/4.5-5.6 &amp; 80-200mm f/4.5-5.6 II Lenses</title>
		<link>http://rationalscope.com/camera-lens/canon-et54-lens-hood-for-ef-55-200mm-f4-5-5-6-80-200mm-f4-5-5-6-ii-lenses/</link>
		<comments>http://rationalscope.com/camera-lens/canon-et54-lens-hood-for-ef-55-200mm-f4-5-5-6-80-200mm-f4-5-5-6-ii-lenses/#comments</comments>
		<pubDate>Wed, 18 Nov 2009 14:24:51 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[55200mm]]></category>
		<category><![CDATA[80200mm]]></category>
		<category><![CDATA[Canon]]></category>
		<category><![CDATA[ET54]]></category>
		<category><![CDATA[f/4.55.6]]></category>
		<category><![CDATA[Hood]]></category>
		<category><![CDATA[Lens]]></category>
		<category><![CDATA[Lenses]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/canon-et54-lens-hood-for-ef-55-200mm-f4-5-5-6-80-200mm-f4-5-5-6-ii-lenses/</guid>
		<description><![CDATA[Compatible with the CANON EF 55-200MM f/4.5-5.6, 80-200MM f/4.5-5.6 II &#038; USM Lenses (more&#8230;)]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Canon-55-200mm-4-5-5-6-80-200mm-Lenses/dp/B00009R6UG/ref=sr_1_16/180-7814797-7654422?ie=UTF8&#038;s=home-garden&#038;qid=1257301106&#038;sr=8-16?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/21S798RNJCL._SL500_AA200_.jpg" alt="Canon ET54 Lens Hood for EF 55-200mm f/4.5-5.6 &#038; 80-200mm f/4.5-5.6 II Lenses" /></a></p>
<p>  Compatible with the CANON EF 55-200MM f/4.5-5.6, 80-200MM f/4.5-5.6 II &#038; USM Lenses</p>
<p>   <a href="http://www.amazon.com/Canon-55-200mm-4-5-5-6-80-200mm-Lenses/dp/B00009R6UG/ref=sr_1_16/180-7814797-7654422?ie=UTF8&#038;s=home-garden&#038;qid=1257301106&#038;sr=8-16?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Canon ET-65B Lens Hood for EF 70-300mm f/4.5-5.6 IS and DO IS USM Lenses</title>
		<link>http://rationalscope.com/camera-lens/canon-et-65b-lens-hood-for-ef-70-300mm-f4-5-5-6-is-and-do-is-usm-lenses/</link>
		<comments>http://rationalscope.com/camera-lens/canon-et-65b-lens-hood-for-ef-70-300mm-f4-5-5-6-is-and-do-is-usm-lenses/#comments</comments>
		<pubDate>Sun, 15 Nov 2009 19:19:59 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[70300mm]]></category>
		<category><![CDATA[Canon]]></category>
		<category><![CDATA[ET65B]]></category>
		<category><![CDATA[f/4.55.6]]></category>
		<category><![CDATA[Hood]]></category>
		<category><![CDATA[Lens]]></category>
		<category><![CDATA[Lenses]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/canon-et-65b-lens-hood-for-ef-70-300mm-f4-5-5-6-is-and-do-is-usm-lenses/</guid>
		<description><![CDATA[Amazon.com Lens hoods are primarily designed to prevent unwanted stray light from entering by extending and shading the end of the lens, ensuring no problems with vignetting or motor functions. Additionally, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. Lens hoods match [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Canon-65B-70-300mm-4-5-5-6-Lenses/dp/B0007MXVH0/ref=sr_1_13/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-13?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/21M0V00WV3L._SL500_AA200_.jpg" alt="Canon ET-65B Lens Hood for EF 70-300mm f/4.5-5.6 IS and DO IS USM Lenses" /></a></p>
<p>      Amazon.com </p>
<p>  Lens hoods are primarily designed to prevent unwanted stray light from entering by extending and shading the end of the lens, ensuring no problems with vignetting or motor functions. Additionally, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. Lens hoods match the specific focal length of the lens it was designed for. This lens hood fits the following Canon lenses:EF 70-300mm f4.5-5.6 DO IS USMEF 70-300mm f4-5.6 IS USM </p>
<p>  One of the most important accessories for each lens you own. A lens hood provides multiple functions: it shades the lens from stray light, improving your contrast and image quality; in inclement weather, it can assist <a href="http://www.amazon.com/Canon-65B-70-300mm-4-5-5-6-Lenses/dp/B0007MXVH0/ref=sr_1_13/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-13?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Panasonic 45-200mm f/4.0-5.6 Lumix G Vario MEGA OIS Zoom Micro Four Thirds Lens for Panasonic and Olympus Micro Four Thirds Cameras</title>
		<link>http://rationalscope.com/camera-lens/panasonic-45-200mm-f4-0-5-6-lumix-g-vario-mega-ois-zoom-micro-four-thirds-lens-for-panasonic-and-olympus-micro-four-thirds-cameras/</link>
		<comments>http://rationalscope.com/camera-lens/panasonic-45-200mm-f4-0-5-6-lumix-g-vario-mega-ois-zoom-micro-four-thirds-lens-for-panasonic-and-olympus-micro-four-thirds-cameras/#comments</comments>
		<pubDate>Sat, 14 Nov 2009 21:17:23 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[45200mm]]></category>
		<category><![CDATA[f/4.05.6]]></category>
		<category><![CDATA[Four]]></category>
		<category><![CDATA[Lumix]]></category>
		<category><![CDATA[Mega]]></category>
		<category><![CDATA[Micro]]></category>
		<category><![CDATA[Panasonic]]></category>
		<category><![CDATA[Thirds]]></category>
		<category><![CDATA[Vario]]></category>
		<category><![CDATA[Zoom]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/panasonic-45-200mm-f4-0-5-6-lumix-g-vario-mega-ois-zoom-micro-four-thirds-lens-for-panasonic-and-olympus-micro-four-thirds-cameras/</guid>
		<description><![CDATA[Lumix G VARIO 45-200mm/4.0-5.6 zoom lens w/MEGA Optical Image Stabilization covers the 35mm equivalent from 90-400mm to help the user capture crisp, blur-free, shots when shooting sports events, wildlife and other distant subjects (more&#8230;)]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Panasonic-45-200mm-4-0-5-6-Olympus-Cameras/dp/B001ISKNKA/ref=sr_1_12/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-12?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/41ZjlaZICgL._SL500_AA280_.jpg" alt="Panasonic 45-200mm f/4.0-5.6 Lumix G Vario MEGA OIS Zoom Micro Four Thirds Lens for Panasonic and Olympus Micro Four Thirds Cameras" /></a></p>
<p>  Lumix G VARIO 45-200mm/4.0-5.6 zoom lens w/MEGA Optical Image Stabilization covers the 35mm equivalent from 90-400mm to help the user capture crisp, blur-free, shots when shooting sports events, wildlife and other distant subjects</p>
<p>   <a href="http://www.amazon.com/Panasonic-45-200mm-4-0-5-6-Olympus-Cameras/dp/B001ISKNKA/ref=sr_1_12/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-12?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Canon 77mm UV Haze</title>
		<link>http://rationalscope.com/camera-lens/canon-77mm-uv-haze/</link>
		<comments>http://rationalscope.com/camera-lens/canon-77mm-uv-haze/#comments</comments>
		<pubDate>Fri, 13 Nov 2009 21:18:10 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[77mm]]></category>
		<category><![CDATA[Canon]]></category>
		<category><![CDATA[Haze]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/canon-77mm-uv-haze/</guid>
		<description><![CDATA[Amazon.com The Canon 72mm UV haze filter not only helps to protect your lens from dust, moisture and scratches, it also allows you to correct for UV effect and eliminate haze from your photos. This filter will absorb approximately 71 percent of UV rays, helping to eliminate haze&#8217;s bluish cast that can obscure distant details. [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Canon-8-7701-77mm-UV-Haze/dp/B00021OCRO/ref=sr_1_11/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-11?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/213BQ0F2B1L._SL500_AA180_.jpg" alt="Canon 77mm UV Haze" /></a></p>
<p>      Amazon.com </p>
<p>  The Canon 72mm UV haze filter not only helps to protect your lens from dust, moisture and scratches, it also allows you to correct for UV effect and eliminate haze from your photos. This filter will absorb approximately 71 percent of UV rays, helping to eliminate haze&#8217;s bluish cast that can obscure distant details. This filter easily screws onto your 77mm lenses.</p>
<p>  Canon is a leader in professional business and consumer imaging equipment and information systems. By developing innovative, high-quality business solutions Canon makes it easy to create, manage, and share images and information better, faster, and more efficiently.</p>
<p>   <a href="http://www.amazon.com/Canon-8-7701-77mm-UV-Haze/dp/B00021OCRO/ref=sr_1_11/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-11?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Nikon 18-200mm f/3.5-5.6G AF-S ED VR II Telephoto Zoom Lens for Nikon DX-Format Digital SLR Cameras</title>
		<link>http://rationalscope.com/camera-lens/nikon-18-200mm-f3-5-5-6g-af-s-ed-vr-ii-telephoto-zoom-lens-for-nikon-dx-format-digital-slr-cameras/</link>
		<comments>http://rationalscope.com/camera-lens/nikon-18-200mm-f3-5-5-6g-af-s-ed-vr-ii-telephoto-zoom-lens-for-nikon-dx-format-digital-slr-cameras/#comments</comments>
		<pubDate>Thu, 12 Nov 2009 16:28:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[18200mm]]></category>
		<category><![CDATA[Cameras]]></category>
		<category><![CDATA[Digital]]></category>
		<category><![CDATA[DXFormat]]></category>
		<category><![CDATA[f/3.55.6G]]></category>
		<category><![CDATA[Lens]]></category>
		<category><![CDATA[Nikon]]></category>
		<category><![CDATA[Telephoto]]></category>
		<category><![CDATA[Zoom]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/nikon-18-200mm-f3-5-5-6g-af-s-ed-vr-ii-telephoto-zoom-lens-for-nikon-dx-format-digital-slr-cameras/</guid>
		<description><![CDATA[From the Manufacturer The Nikon 18-200mm VR II lens is remarkable one-lens solution&#8211;adept in a wide variety of situations. It delivers 11x zoom versatility, for a picture angle equivalent of a 27-300mm lens in 35mm format. Nikon VR II (Vibration Reduction) image stabilization Vibration Reduction, engineered specifically for each VR Nikkor lens, enables handheld shooting [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Nikon-VR-II-Telephoto-DX-Format/dp/B002JCSV8A/ref=sr_1_10/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-10?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/416w3ae7haL._SL500_AA280_.jpg" alt="Nikon 18-200mm f/3.5-5.6G AF-S ED VR II Telephoto Zoom Lens for Nikon DX-Format Digital SLR Cameras" /></a></p>
<p>      From the Manufacturer</p>
<p>   The Nikon 18-200mm VR II lens is remarkable one-lens solution&#8211;adept in a wide variety of situations. It delivers 11x zoom versatility, for a picture angle equivalent of a 27-300mm lens in 35mm format. Nikon VR II (Vibration Reduction) image stabilization Vibration Reduction, engineered specifically for each VR Nikkor lens, enables handheld shooting at up to 4 shutter speeds slower than would otherwise be possible, assuring dramatically sharper images. Two Extra-low Dispersion (ED) elements Offers superior sharpness and color correction by effectively minimizing chromatic aberration, even at wide aperture settings. Three aspherical lens elements Virtually eliminates coma and other aberrations, even at  <a href="http://www.amazon.com/Nikon-VR-II-Telephoto-DX-Format/dp/B002JCSV8A/ref=sr_1_10/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-10?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Kata DR-461 DPS Series Digital Micro Rucksack Case for DSLR Camera with 3 Lenses, Flash. and Accessories</title>
		<link>http://rationalscope.com/camera-lens/kata-dr-461-dps-series-digital-micro-rucksack-case-for-dslr-camera-with-3-lenses-flash-and-accessories/</link>
		<comments>http://rationalscope.com/camera-lens/kata-dr-461-dps-series-digital-micro-rucksack-case-for-dslr-camera-with-3-lenses-flash-and-accessories/#comments</comments>
		<pubDate>Tue, 10 Nov 2009 21:49:53 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[Camera]]></category>
		<category><![CDATA[Case]]></category>
		<category><![CDATA[Digital]]></category>
		<category><![CDATA[DR461]]></category>
		<category><![CDATA[DSLR]]></category>
		<category><![CDATA[Kata]]></category>
		<category><![CDATA[Micro]]></category>
		<category><![CDATA[Rucksack]]></category>
		<category><![CDATA[Series]]></category>
		<category><![CDATA[with]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/kata-dr-461-dps-series-digital-micro-rucksack-case-for-dslr-camera-with-3-lenses-flash-and-accessories/</guid>
		<description><![CDATA[Kata Digital Micro Rucksack item number: KT DR-461 features a unique TST Rib Structural Protection for a D/SLR with a mounted lens, 2-3 lenses, flash and accessories. The main compartment holds a D/SLR while the modular dividers will separate and organize and protect lenses, and other accessories. Additional gear can be stored in the front [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Kata-DR-461-Digital-Rucksack-Accessories/dp/B001F0RPKW/ref=sr_1_8/180-7814797-7654422?ie=UTF8&#038;s=home-garden&#038;qid=1257301106&#038;sr=8-8?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/218B69J1ktL._SL500_AA200_.jpg" alt="Kata DR-461 DPS Series Digital Micro Rucksack Case for DSLR Camera with 3 Lenses, Flash. and Accessories" /></a></p>
<p>  Kata Digital Micro Rucksack item number: KT DR-461 features a unique TST Rib Structural Protection for a D/SLR with a mounted lens, 2-3 lenses, flash and accessories. The main compartment holds a D/SLR while the modular dividers will separate and organize and protect lenses, and other accessories. Additional gear can be stored in the front pocket which can be accessed either externally or internally. When carrying, a sternum strap will provide ultimate comfort and stability. This rucksack is also compatible with Kata EPH system which will allow you to attach a waist pack for extra storage. The included foldable rain cover helps protect your equipment in bad weather. External height: 12.20 in.; external length: 11.02 in.; ex <a href="http://www.amazon.com/Kata-DR-461-Digital-Rucksack-Accessories/dp/B001F0RPKW/ref=sr_1_8/180-7814797-7654422?ie=UTF8&#038;s=home-garden&#038;qid=1257301106&#038;sr=8-8?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Sigma 70-300mm f/4-5.6 SLD DG Macro Lens with built in motor for Nikon Digital SLR Cameras</title>
		<link>http://rationalscope.com/camera-lens/sigma-70-300mm-f4-5-6-sld-dg-macro-lens-with-built-in-motor-for-nikon-digital-slr-cameras/</link>
		<comments>http://rationalscope.com/camera-lens/sigma-70-300mm-f4-5-6-sld-dg-macro-lens-with-built-in-motor-for-nikon-digital-slr-cameras/#comments</comments>
		<pubDate>Mon, 09 Nov 2009 13:20:34 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[70300mm]]></category>
		<category><![CDATA[built]]></category>
		<category><![CDATA[Digital]]></category>
		<category><![CDATA[f/45.6]]></category>
		<category><![CDATA[Lens]]></category>
		<category><![CDATA[Macro]]></category>
		<category><![CDATA[Motor]]></category>
		<category><![CDATA[Nikon]]></category>
		<category><![CDATA[Sigma]]></category>
		<category><![CDATA[with]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/sigma-70-300mm-f4-5-6-sld-dg-macro-lens-with-built-in-motor-for-nikon-digital-slr-cameras/</guid>
		<description><![CDATA[The built-in motor allows autofocus with all Nikon digital ameras. These lenses incorporate a macro feature with aximum magnification 1:2 at the 300mm focal length. It is suitable for various types of shooting conditions. This telephoto lens has a 1:2 maximum magnification at the 300mm focal length. It is ideal for portraits, sport and other [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Sigma-70-300mm-Nikon-Digital-Cameras/dp/B0012X43P2/ref=sr_1_7/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-7?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/413w1QmV3AL._SL500_AA280_.jpg" alt="Sigma 70-300mm f/4-5.6 SLD DG Macro Lens with built in motor for Nikon Digital SLR Cameras" /></a></p>
<p>  The built-in motor allows autofocus with all Nikon digital  ameras. These lenses incorporate a macro feature with  aximum magnification 1:2 at the 300mm focal length. It is suitable for various types of shooting conditions.  This telephoto lens has a 1:2 maximum magnification at the 300mm focal length. It is ideal for portraits, sport and other types of photography. SLD (Special Low Dispersion) glass provides excellent correction of chromatic aberration. The super multi-layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range.  Lens Construction  14 Elements in 10 Groups  Angle of View: 34.3 &#8211; 8.2 degrees  Number of Diaphragm Blades: 	9 Blades  Minimum Aperture: 	F22  Minimum  <a href="http://www.amazon.com/Sigma-70-300mm-Nikon-Digital-Cameras/dp/B0012X43P2/ref=sr_1_7/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-7?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<title>Canon Monopod 100 for SLR Cameras &amp; Lenses</title>
		<link>http://rationalscope.com/camera-lens/canon-monopod-100-for-slr-cameras-lenses/</link>
		<comments>http://rationalscope.com/camera-lens/canon-monopod-100-for-slr-cameras-lenses/#comments</comments>
		<pubDate>Thu, 05 Nov 2009 16:19:10 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[Cameras]]></category>
		<category><![CDATA[Canon]]></category>
		<category><![CDATA[Lenses]]></category>
		<category><![CDATA[Monopod]]></category>

		<guid isPermaLink="false">http://rationalscope.com/camera-lens/canon-monopod-100-for-slr-cameras-lenses/</guid>
		<description><![CDATA[From the Manufacturer The Canon Monopod 100 is a compact, lightweight 4-section monopod that comes with a mini-ballhead. It features a foam grip on the top leg section, a hand strap, and rubber leg tip. Specifications: Maximum height: 64.5 inches Folded length: 21.3 inches Load capacity: 4.4 pounds Leg lock type: Flip lock Male thread [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.amazon.com/Canon-Monopod-100-Cameras-Lenses/dp/B0002YE6EU/ref=sr_1_3/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-3?ie=UTF8&#038;tag=httpwwwsageim-20"><img style="float:left;width: 150px;height:150px;margin-right: 10px;" src="http://ecx.images-amazon.com/images/I/11CEYAADC3L._SL500_AA200_.jpg" alt="Canon Monopod 100 for SLR Cameras &#038; Lenses" /></a></p>
<p>      From the Manufacturer</p>
<p>  The Canon Monopod 100 is a compact, lightweight 4-section monopod that comes with a mini-ballhead. It features a foam grip on the top leg section, a hand strap, and rubber leg tip.  Specifications: Maximum height: 64.5 inches Folded length: 21.3 inches Load capacity: 4.4 pounds Leg lock type: Flip lock Male thread size: 1/4-inch Weight: 1.1 pound  </p>
<p>  Canon is a leader in professional business and consumer imaging equipment and information systems. By developing innovative, high-quality business solutions Canon makes it easy to create, manage, and share images and information better, faster, and more efficiently.</p>
<p>   <a href="http://www.amazon.com/Canon-Monopod-100-Cameras-Lenses/dp/B0002YE6EU/ref=sr_1_3/180-7814797-7654422?ie=UTF8&#038;s=electronics&#038;qid=1257301106&#038;sr=8-3?ie=UTF8&#038;tag=httpwwwsageim-20" title="More at Amazon">(more&#8230;)</a></p>
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		<title>What is a Digital SLR Camera?</title>
		<link>http://rationalscope.com/camera-lens/what-is-a-digital-slr-camera/</link>
		<comments>http://rationalscope.com/camera-lens/what-is-a-digital-slr-camera/#comments</comments>
		<pubDate>Tue, 03 Nov 2009 23:47:57 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Camera Lens]]></category>
		<category><![CDATA[Digital Camera D-SLR]]></category>
		<category><![CDATA[Full Frame DSLR]]></category>

		<guid isPermaLink="false">http://rationalscope.com/?p=184</guid>
		<description><![CDATA[Digital cameras evolved from small format film cameras by replacing film with a semiconductor sensor.  When theses sensors became as large as 35mm film, they were called full frame dslr cameras.]]></description>
			<content:encoded><![CDATA[<div>
<p>Way back in the <strong>old days</strong> cameras had a thing called <strong>film</strong>.  Light would strike tiny particles of silver in this film and whenever more than a couple photons of light hit one of these silver grains it would be called <strong>exposed</strong>.  Exposed grains were soaked in a solution called a <strong>developer</strong> and they would then turn black.  The parts of the film that received the most light would have the most silver grains developed, and that part of the film would be blacker than the rest.</p>
<p>One problem was that if a grain was developed, whether by two photons or by a thousand photons, the entire grain turned black.  So the <strong>resolution</strong> of the film was limited by the size of the silver grains, and in order to have a good resolution, like what we call today <strong>pixels</strong>, the film size had to be as large as possible.  The most practical size for film for good pictures  was 35mm, and thus the most popular camera was called the <strong>35 mm camera</strong>.</p>
<p>Now the 35mm camera took pictures that were good enough that people wanted to see exactly what they were filming before they pressed the shutter.  Cheaper, smaller format cameras had a viewfinder that was offset from the lens, so it looked at a slightly different part of the world than the camera lens, so there was some guesswork involved in what exactly would show up on the film.  The solution was to place a movable mirror right in the middle of the main camera lens.  This mirror would move out of the way when you pressed the shutter, but until then, it would deflect the light that would normally fall onto the film up to the viewfinder so you could see exactly what would fall onto the film.</p>
<p>The motion of this mirror was called <strong>reflex</strong>, and because there was only one main camera lens &#8211; instead of a camera lens plus a viewfinder lens &#8211; the cameras were called <a title="full frame dslr cameras" href="http://www.rationalscope.com/full-frame-dslr"><strong>single lens reflex</strong></a>, or <strong>SLR</strong>.  Almost all of those cameras exposed 35mm film, meaning that the size of the exposed film was 35mm across.  Every part of the camera, from the body to the lens to the distance of the lens from the film, was designed specifically to make an image of the outside world onto a 35mm long strip of silver grains.</p>
<p>Fast forward to the 1980s and 1990s.  Innovations in design and manufacture of light sensitive semiconductor arrays made possible small chips with at least 640 by 480 individual light sensitive regions, which was as good as or better than most commercial camera film of the same size.  This availability of <strong>cmos</strong> and <strong>ccd</strong> led to an entire generation of small consumer cameras; remember that both the lens, the body and the geometry of a camera revolves around the size of the film, and in this case these chips compared in size to 8mm or 16mm film, much smaller than 35mm.</p>
<p>These small form cameras featured a viewfinder like their old small film type cameras:  the viewfinder was offset from the camera so it showed a slightly different picture than the film, or in this case the chip, saw.   But the new cameras were now <strong>digital</strong>, so they read the amount of light at each point, or <strong>pixel</strong>, of the chip and converted that amount of light into a number; the digital cameras could display this digital image on a small screen, so the photographer could preview exactly what the chip was seeing.   Previews on the back of the camera gave these small form cameras the major advantage of SLR with the convenience of inexpensive consumer <strong>point and shoot</strong> cameras, and today these cameras comprise a large part of the consumer electronics market.</p>
<p>Small point and shoot cameras, like the popular <strong>Canon Digital Elph</strong> series, routinely shoot pictures of far better resolution and clarity than the old consumer cameras of similar sized film.  The ubiquity of excellent picture quality with the convenience of computer and internet connectivity have truly revolutionized consumer photography and its ability to be shared with much larger groups of people than just friends or family.   Still,  there is a constant demand in digital products for improvement in all of the specifications, and these demands for even better image quality motivated a whole new generation of digitial cameras.</p>
<p>These new cameras are called <strong>digital single lens reflex</strong>, or <strong>DSLR</strong>, cameras, and they are almost exactly like the old fashioned 35mm SLR cameras, except they use a larger 16mm or 35mm sensor chip instead of film, and some makers have taken the opportunity to redesign their removable lenses.   Some cameras can still use the lenses made for older 35mm film cameras, but other cameras need their own brand of <a title="camera lens" href="http://www.rationalscope.com/camera-lens">lenses</a>.  Still, almost all DSLR cameras have removable lenses so that the photographer has a choice of lens format, from macro lenses to telephoto zoom lenses.</p>
<p>The larger format DSLR cameras have other advantages over the point and shoot digital cameras, but whichever camera you choose you can be sure that it exceeds the image quality of most all of the last generation consumer cameras.</p></div>
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