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Topic: Wide angle lens

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	New wide-angle lens produces pictures without distortion
		The challenge is to design a lens that collects light from a wide area (i.e., from the entire room) and yields an image that is "perspectively correct," in that it accurately depicts the shapes and relative dimensions of imaged objects.
		This "refractive" lens produces a sharp image of the large area at the exact location of the image sensor within the bullet camera.
		The v-shaped lens is called a catoptric (reflective) lens and the second lens is known as a dioptric (refractive) lens, so the combined design is called a "catadioptric" lens.
	www.physorg.com /news84110167.html (1154 words)

	Tutorial: Wide Angle Lens
		For normal lens (of in reallity) this vanishing point is somewhat farter from the focal plane than for the wide-angle lens — the intersection of the blue line and the axis.
		Wide angle means that you can fit a lot of stuff into the image, like on the image to the left.
		Wide angle lens help when there is a limited space and you need to jam a big subject into the picture.
	tips.romanzolin.com /articles/article045.php (2377 words)

	Video University: Video University Forums: Sony DV and DVCAM Forum: VX2000 wont focus after using wide angle lens
		I used a Kenko.75 Wide angle lens to see all of the stage.
		If I put the screw the wide angle lens back on I can focus on near and far objects both with auto and manual focus.
		Perhaps it came with the new Wide angle lens I purchased and I never noticed it.
	www.videouniversity.com /forums/gforum.cgi?post=114407 (852 words)

	Fujinon Wide-angle ENG Lens
		This lens was long (133mm), wider (7.8mm), lighter by a pound and switchable between 4:3 to 16:9 aspect ratios.
		The field of view is nearly 89 degrees wide at the 4.5mm end of the range.
		The focal length on the long end is half what a typical ENG lens is and even with the 2x extender in place, the maximum length is 118 mm.
	www.tvtechnology.com /reviews/features/fuji_lens.shtml (735 words)

	Sigma - Lenses
		The minimum focusing distance of this lens is 20cm (7.9 inch) and it has maximum magnification of 1:4 with fast F 1.8 maximum aperture.
		It is easy to hold the lens, since the focusing ring does not rotate during auto-focus, yet it provides adequate focusing torque of the focusing ring during manual focusing of the lens.
		The use of aspherical lens elements in both of the front and rear lens groups effectively compensates for distortion, spherical aberration and astigmatism.
	www.sigmaphoto.com /lenses/lenses_all_details.asp?id=3280&navigator=4 (203 words)

	NationMaster - Encyclopedia: Wide angle lens (Site not responding. Last check: )
		In photography and cinematography, a wide-angle lens is a lens whose focal length is shorter than the focal length of a normal lens.
		For a 35 mm camera with a 24 by 36 mm format, the normal lens is 50 mm.
		The retrofocus lens solves this proximity problem through an asymmetrical design that allows the rear element to be further away from the film plane than its effective focal length would suggest.
	www.nationmaster.com /encyclopedia/Wide_angle-lens (235 words)

	Wide-angle lens - Wikipedia, the free encyclopedia
		In photography and cinematography, a wide-angle lens is a lens whose focal length is shorter than the focal length of a normal lens.
		For a 35 mm camera with a 36 mm by 24 mm format, the normal lens is 50 mm.
		The retrofocus lens solves this proximity problem through an asymmetrical design that allows the rear element to be further away from the film plane than its effective focal length would suggest.
	en.wikipedia.org /wiki/Wide-angle_lens (394 words)

	eBay - wide angle lens, Lenses Filters, Camcorder Accessories items on eBay.com (Site not responding. Last check: )
		WIDE ANGLE LENS fisheye and Macro Lens For Pentax
		WIDE ANGLE LENS and Macro for Powershot A520 A620 and A700
		WIDE ANGLE LENS and Macro for Powershot A80 A85 A90 and A95
	search-desc.ebay.com /search/search.dll?query=wide+angle+lens&...&krd=1 (667 words)

	12-24 AF-S DX Lens Review by Thom Hogan (Site not responding. Last check: )
		Nikon's solution to the missing wide angle range was to launch a new series of lenses--the DX lenses--which are designed with an image circle more appropriate to the smaller sensor size of the digital lineup.
		At 24mm, this lens may be as sharp as the 24mm f/2.8 Nikkor, which I think is one of the sharpest wide angles Nikon has made.
		A typical wide angle use of the 12-24mm, taken at 12mm mid-stream with a D100 at f/22 and with a 1 second exposure.
	www.bythom.com /1224lens.htm (2169 words)

	Sigma - Lenses
		Sigma provides the new ultra-wide angle zoom lens from 15mm and this lens is the first of its kind in the world.
		This is an ultra-wide zoom lens that covers a large wide-angle range from 15 mm to 30 mm.
		It incorporates hybrid aspherical lens in the front lens group to minimize distortion and astigmatism, and molded glass aspherical lens in the rear lens group to minimize spherical aberration.
	www.sigmaphoto.com /lenses/lenses_all_details.asp?id=3242&navigator=1 (282 words)

	Video Games: Tiffen 37MEGAWIDE 37mm 0.56x MegaPlus Wide-Angle Lens (Site not responding. Last check: )
		If I use that wide angle lense right on the end of the adapter I get good images but the outside edges are out of focus.
		The only other thing is that this lens is wide enough that it blocks the view finder and the flash on my camera setup.
		I have used this lens on a Sony W-7 and have found the centers of the photos to be sharp and the edges of the photos to be out of focus.
	www.blogherald.com /shop/shop.php?c=8&n=513014&i=B00005UKC4&x=TIFFEN_37MEGAWIDE_37mm_056x_MegaPlus_Wide_Angle_Lens (446 words)

	Sony VCL-0630X Wide-angle camcorder lens at Crutchfield.com
		Sony's VCL-0630X wide-angle lens is the ideal way to capture group shots in tight quarters or indoor areas where there's insufficient room to back away from your subjects.
		It simply attaches to the built-in lens of your compatible Sony camcorder to help pull even the largest groups into the picture without forcing everyone to squeeze closer together.
		lens is 2-1/4" in diameter, 1-3/8" in length
	www.crutchfield.com /cgi-bin/prodview.asp?i=158VCL063X (93 words)

	Wide-angle lens, Seattle
		The internal focusing lens can eliminate ghosting and flaring more effectively than the conventional lens by cutting unnecessary light fluxes at the square hood, and is thus well suited for CCD cameras.
		The focusing lens group, which is lighter than those in a conventional lens, can be moved quickly using little electric power, enabling smooth movement even during manual operation.
		These filters can be used with the internal focusing lens without any problem because the front group does not rotate, thereby enabling the filters to be used to their full effect.
	www.absolutedigi.com /wide-angle_lens.htm (420 words)

	Some High Quality Wide Angle Converter Lenses
		Since this lens has a 49mm rear thread and a 86mm front thread, a 55-49mm step-down ring is needed.
		The Nikon WC-E80 is a 0.8X wide angle converter lens for Nikon Coolpix 5700 and is large.
		A massive wide angle converter will block a portion of the internal flash's illumination, causing a semi-circular shadow in the lower portion of the captured image.
	www.cs.mtu.edu /~shene/DigiCam/User-Guide/FZ-30/Converters/Lenses/WideAngle.html (1163 words)

	"Wide angle lens" on Yedda - People. Sharing. Knowledge.
		I guess that the main thing is that Im just not into the wide angle asthetic so i cant comment on it like i could on a nice portrait lens.
		All canon wide angle primes are for the EF mount, and not EF-S, all sigma's primes are DG and not DC, tamron's prime is not a Di and tokina have no wide angle prime at all.
		The shadow is cased by the lens blocking the light from the flash.
	yedda.com /questions/photography_canon_lens_wide_angle_3505271513148 (1332 words)

	Wide-Angle Lenses For Nikon 'F' Mount
		Images produced by this lens are crisp and sharp, with just a trace of softness into the extreme corners unless the aperture collar is moved beyond the f/5.6 position.
		Wide open the extreme corners are quite soft, but they rapidly improves when the lens is stopped down.
		The PC 28 is a slow-working lens, firstly due to its preset aperture control, and secondly due to the need for metering with the lens in a neutral position; you cannot shift the lens and then meter with the camera as usual.
	www.naturfotograf.com /lens_wide.html (4444 words)

	eBay Guides - The Sigma EX 14mm f 2.8 Ultra Wide Angle Lens
		This means that the image and the physical lens property of focal range must be multiplied by a factor of 1.5x to compensate for this physical difference in image plane size.
		Lens flare is crazy due to the bulging front element, and the permanently attached hood can only do so much.
		If an even wider angle is important, along with the use of filters (be prepared for vignetting at the widest angle and apertures in these digital zooms), then one of the zooms may be more to your liking.
	reviews.ebay.com /The-Sigma-EX-14mm-f-2-8-Ultra-Wide-Angle-Lens_W0QQugidZ10000000001909035 (1773 words)

	Wide angle lens attachments
		Most problems arise because the engineers are not able to design their attachments for a particular lens and instead have to make it work with a wide variety of focal lengths and lens diameters.
		A fast lens is very large for its focal length and lets lots of light through whereas a slow lens is smaller, but also cheaper to make.
		All of these wide angle attachments are of the same design and if you can separate the front from the back, you can also use it as a Macro (close-up) attachment.
	www.photographic.co.nz /dtv/content/articles/wideangles/Default.htm (1270 words)

	Lens Specs: 11-22mm f2.8/3.5
		When you need wide angle lenses with great performance and fast apertures, Zuiko Digital Wide Zoom lenses can deliver.
		The superb optics are designed specifically for digital photography - delivering the highest image quality - with their design highlighted by two aspherical glass lens elements that help prevent aberrations and distortions.
		These elements combine with new multi-coating on the first two lenses, which contributes to the removal of ghost or glare that can occur with a wide-angle lens, so clarity of images is obtained at all distances.
	www.olympusamerica.com /e1/sys_lens_ez1122mm.asp (130 words)

	Super Wide Angle Lenses shootout - Nikonians test review article
		While the gains in apparent focal length on telephoto lenses were praised by nature shooters, the downside of this “crop factor” was that now your 17-35mm lens lost its “super-wide” ability and became a pedestrian 26-52mm lens.
		Until late 2004, the Nikkor 12-24mm DX lens was pretty much a digital shooter’s only choice for an 18-36mm film equivalent angle of view.
		We approached this review from the perspective of the Nikonian who is looking to get back their wide angle of view that they were used to with an 18-35mm or 17-35mm lens on their film body.
	www.nikonians.org /html/resources/nikon_articles/nikkor/af/wide_angles_shootout/index.html (856 words)

	PhotoNotes.org Dictionary - Wide angle lens (Site not responding. Last check: )
		Wide angle lenses can be rectilinear (straight lines are preserved) or fisheye (extreme barrel distortion is evident).
		Most wide angle lenses used on SLR cameras are of the inverted telephoto design.
		angle of view, fisheye lens, focal length, normal lens, inverted telephoto lens, rectilinear, telephoto lens.
	photonotes.org /cgi-bin/entry.pl?id=Wideanglelens (213 words)

	Wide Angle lens suggestions? - FM Forums
		I'm slowly warming up to my 28-135mm IS and need to start looking for a wider angle lens for the times I can't take a few steps backwards to accomodate the 28mm.
		Both of these lenses are great lenses if they are used correctly, to many people have problems with wide angle lenses and for the most part its not taking the time and getting to know the lens itself.
		Note that some people claim the lens is a bit soft wide open but I have not had any issues with my lens.
	www.fredmiranda.com /forum/viewtopic_archives.php?TopicID=356802&page=0 (966 words)

	Sealife Wide Angle Lens Pack - Wide Angle Lens, Lens Dock, Large Carry Case
		Reefmaster SL972 Lens Dock for Wide Angle Lens
		SeaLife Wide Angle Lens Pack with Lens Dock and Large Case
		Weighing in at nine ounces, with three lens elements in three groups and a 6160 aluminum housing, the lens is submersible up to 200 feet.
	www.performancegear.com /sealife-wide-angle-pack.html (278 words)

	LensmateOnline - Canon A610 A620 Wide Angle Lens Samples
		This greater distance between the end of the zoom lens and the conversion lens increases the potential for vignetting with wide angle converters.
		In all fairness, shooting tall buildings is a worst possible scenario for a wide angle lens, and many users will be shooting in a more natural setting in which barrel distortion is less noticeable.
		This is the lens that Canon recommends for the A620 and the same converter used for the Powershot G3/5/6.
	www.lensmateonline.com /newsite/A620A610wide.html (910 words)

	Boffins focus on distortion-free wide angle lens
		The new wide-angle lens is lighter, smaller and more affordable than commercially available 'rectilinear' lenses, which also produce low-distortion views.
		This reflective lens then redirects the light rays to a second lens that resembles the slender statue atop the dome.
		This 'refractive' lens produces a sharp image of the large area at the exact location of the image sensor within the bullet camera.
	www.vnunet.com /articles/print/2170220 (291 words)

	Murray’s Blog » Blog Archive » 20D wide-angle lens
		I keep seeing wonderfully dramatic wide angle photos, so I am now severly tempted by the Canon 20D wide angle 10-22mm lens.
		Getting this lens was quite an eye-opener; suddenly there was a whole lot of new photos to capture - highly recommended.
		So far all my research is leading me to this lens for ultra wide angle.
	www.murrayc.com /blog/permalink/2005/12/12/20d-wide-angle-lens (545 words)

	-Lens > Wide Angle
		Wide angle (also called "zoomed out" or "short focal length") lens settings have the opposite characteristics of telephoto settings.
		The ONLY difference is that one is shot with a wide angle lens, and the other with a telephoto lens.
		BOTH of these shots are "full shot of a funny-looking guy." I am standing in the same place in both shots (did I say that already?) The dramatically different backgrounds are due to the fact that one shot is wide angle and one is telephoto.
	video101course.com /300lens200.html (227 words)

	Angle Lens Wide
		Nikon Wide Angle AF Nikkor 24mm f/2.8D Autofocus Lens
		Tokina Zoom Wide Angle 19-35mm f/3.5-4.5 EMZ Autofocus Lens for Canon EOS
		Sigma Zoom Wide Angle 20-40mm f/2.8 EX Aspherical DG DF Autofocus Lens for Canon EOS
	www.shopping.com /xGS-Angle_Lens_Wide (1156 words)

	Wide angle lens - Diary of a CrazyFrench
		Wide angle lens - Diary of a CrazyFrench
		The thing I'm seriously lacking with my EOS 20D is a real wide angle lens as the 24mm ends up being rougly 38mm.
		Well even if you still stick with your wide angle optics you may enjoy the fun of stiched images.
	www.figuiere.net /hub/blog/?2005/03/22/127-wide-angle-lens (398 words)

	Cokin 0.5x Wide-Angle Lens for Camcorders (Site not responding. Last check: )
		Upon closer examination of the lens, due mostly to the fact that "macro" is stamped in red on it, I found that the Cokin 0.5x Wide-Angle Lens is actually composed of two separate lenses: a macro lens and a wide-angle lens.
		Since the lens hood on the camcorder has to be removed in order to use the filter thread, I keep the Cokin 27mm-37mm step-up ring mounted as a lens hood.
		This lens is made for the smaller sensor on camcorders; therefore it creates the fisheye effect on this still digital camera combination.
	www.camerahacker.com /Cokin/Cokin_0.5x_Wide-Angle_Lens.html (844 words)

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