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Topic: Lens mount

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	[Leica] Impact and lens mount of R8, Focus shift? (Site not responding. Last check: 2007-10-13)
		The metal lens hood protected the lens itself, but the focus was stuck and the lens is now being repaired somewhere in Leicaland.
		I am now thinking that perhaps the lens mount was a bit pushed in due to the impact (not at all apparent from visual examination of the body).
		(Tests of the lens mount with the 19mm were inconclusive, and hence the use of the longer focal length lens that I happen to have.) But under a 22x magnifier on the slides, one can see differences.
	www.leica-users.org /v25/msg11802.html (462 words)

	Information related to F Lens Mount from Nikon - Part 1
		Apart from what the lens at the back tells you, some users used the colour of the coating on the lens to determine whether the lens is an AI or non-AI.
		For Non AI lenses, mounted on a non-AI camera, the aperture ring must be set to f/5.6, and the meter coupling pin on the camera body (Nikkormats) or meter prism (Nikon F and F2) must be pushed to the right until it clicks into place.
		If no positive mounting is felt when moving the meter coupling pin, just push the pin as far to the right as it will go and mount the lens: the rabbit ears should fit into the middle with the pin.
	www.mir.com.my /rb/photography/hardwares/nikonfmount/lens1.htm (1639 words)

	Zörk Mount adapters
		With the adapter ring in place, the spacing between the lens and camera body precisely matches the optical register (film plane to lens flange distance) of the original medium format camera, thereby assuring accurate focusing throughout the range from infinity to close up.
		However, because of the cropping effect of a smaller format relative to the original format for which a lens was designed, a standard medium format lens such as 80 mm, becomes a short telephoto lens on a 35mm camera or a medium telephoto on a 1.5 multiplication factor digital body.
		These effects are format-independent (i.e., an 80mm lens, while appearing "normal" on a medium format camera, will produce the same perspective as an 80mm "short telephoto" on a 35 or full frame digital camera).
	www.zoerk.com /pages/p_mounta.htm (796 words)

	Re: nikon n90 lens mount (Site not responding. Last check: 2007-10-13)
		The 'correct' lens mount for your camera is the Nikon AF-D, however, all AF lenses will fit and work.
		The 'D' lens has a device in the lens which relays distance information from the lens to the camera body.
		Nikon's lens mount has evolved over the years, but most older (eg.
	www.acecam.com /photography/747.html (147 words)

	SLR Lens Mount Identification Guide
		The "breech" style Canon FD mount looks similar, but you need to hold your lens so that the top is toward the red dot in the photo for the levers to be in the same position.
		You may encounter a lens with a finer thread, 42mm diameter but about 0.75mm pitch: this would be a "T" mount lens, missing its mount which screws on.
		They are very similar, except that the TX mount has the additional linkage to permit open-aperture metering; as I recall, you can use a T4 mount on a TX lens, but not the other way round....
	members.tripod.com /rick_oleson/index-99.html (1109 words)

	Lens Mount Converers FAQ vers. 1.4 (Site not responding. Last check: 2007-10-13)
		These mounts can be a little harder to use than a T-mount, since you have to align a coupling pin in the mount with the lens to provide auto-diaphragm operation.
		A C mount adapter could either be an adapter to mount a "generic" device on a C-mount film/video camera, or to adapt a specific mount of 35mm camera lens for use on a film/video camera.
		A variety of lens mounting options may be used, including reverse T-mount adapters.
	medfmt.8k.com /bronmounts.html (8344 words)

	Pentax 50mm f/1.4 strip-down instructions
		Leave the rear cap on the lens while you work on the front of it, this will save you damaging the rear element which sticks out further than on most lenses you will encounter and the glass is not protected by the mount.
		Now the lens tube is completely free from the mount you may unscrew the rear group from the lens, grip it with your fingers, wrap a pice of rubber around it to increase your grip if neccessary.
		Where the rings holding the individual lens elements are sealed in place with a lacquer you may need to disolve this with a little acetone to allow you to unscrew the rings.
	homepages.ihug.co.nz /~Srawhiti/pentax50mmf1.4.html (561 words)

	Canon-EOS mount lens tests and reviews
		This lens is not built as well as the 28-80, in the sense that the focusing ring is even chintzier, and there are no distance scales, but has never given me any problems, except one or two times when it acted up.
		Optically, as everyone has said, this lens is excellent at the short end (75-150) and average to good at 300.
		The lens is at least as sharp as the 28-80, and the IS definitely works.
	ptolemy.eecs.berkeley.edu /~murthy/Canon.html (1020 words)

	Camera/Lens Back Focus Procedure
		When installing a zoom lens on a camera, you may find that the lens cannot be focused at either end of the zoom range.
		Adjust the pick-up device position screw or camera lens mount to obtain a clear picture.
		Tighten the pick-up device or camera lens mount set screw to ensure it does not change position.
	www.isorainbow.com /tech/backfoc.html (231 words)

	Ritzcam.com Message Board - Lens for Devry 35mm standard? (Site not responding. Last check: 2007-10-13)
		I suspect from your description that what you have is not the "Lunchbox", which did not have a threaded lens mount.
		The lens is set and rotated to lock in place, as you would with a bayonet mount.
		If you have a true Lunchbox DeVry with a screw mount lens, it would have to be a modification, so impossible to say what mount without some specifications.
	www.ritzcam.com /forum/showthread.php?goto=lastpost&threadid=85 (377 words)

	HP 315 Lens Mount Instructions
		The lens mount can be left on at all times if desired.
		The mount allows the lens door to move enough to allow shutting the camera off.
		To remove the lens mount, simply reverse the procedure.
	www.tiffen.com /HP315_LMInst.htm (131 words)

	Pentax Lens Modifications for Matrix Metering - Mark Roberts Photography
		This is achieved with a series of contacts in the lower left-hand section of the lens mount on the camera body, which are visible upon removing the lens
		Another one tells the camera if the lens is set to "A" for shutter priority or programmed autoexposure; this one also has nothing to do with matrix metering.
		If there's no plastic insulator (bare lens mount), the corresponding contact on the camera body is shorted to ground.
	www.robertstech.com /matrix.htm (515 words)

	Nikon F AI'd, AI, AIS Lenses
		Two of the many early lens characteristics are focal length markings in centimeters rather than MM and a solid stainless steel bayonet base rather than the five mounting screws later lenses used.
		These conversions are easy to recognize because of the obvious machined groove at the back of the lens, and the lack of a Nikon style 2nd aperture row.
		AIS lenses also have 1) a little indentation in the stainless steel lens mount to indicate that a lens with a linear action diaphragm was mounted.
	www.cameraquest.com /aidaiais.htm (1556 words)

	Lens Mount for CCD Cameras (Site not responding. Last check: 2007-10-13)
		The flange back (distance from the surface where the lens comes in contact with the camera to the focal point) of C-Mount lens is 17.526mm(0.69 inch).
		A C-Ring (5mm spacer ring) is required when a C-Mount lens is to be mounted to a CS-Mount camera unless the camera has built-in Flange-back Adjusting Ring.
		While C- or CS-Mount lens can be changed according to your application, the fixed mount lens, usually found on board cameras and mini cameras does not have standard mount size and can not be changed as easily as C- or CS-Mount lens.
	www.cctvconsult.com /pages/mount.htm (235 words)

	Digital Cameras - Olympus EVOLT E-300 Digital Camera Review
		The lens releases with a button that could be a bit bigger and closer to the mount, but once properly activated, the lens comes off the metal ring mount with just the right sense of friction, especially for owners of old Olympus OM-series cameras, which had a notably nice "feel" in this respect.
		Featuring an interchangeable lens mount, a host of exposure controls (including full manual exposure control), and a wide range of 14 preset exposure modes, the E-300 is a capable option for those amateurs looking for a meatier camera, but who aren't willing to shell out the big bucks on a pro level digital SLR.
		A lens release button on the lower right side of the front panel releases the lens from the mount, and a set of alignment marks on the mount itself helps you line up the lens appropriately.
	www.imaging-resource.com /PRODS/E300/E30P.HTM (14238 words)

	COLLIMATORS AND AUTO COLLIMATORS (Site not responding. Last check: 2007-10-13)
		A collimator is a tube with a lens at one end and a reticule at the other.
		If the viewfinder and lens focus marks agree, but image on the ground prism doesn't, you have a problem with the position of the aperture plate.
		Remember that a lens mount seating problem will be worse the wider the lens where focus is harder to see.
	www.rondexter.com /professional/equipment/collimators.htm (449 words)

	Canon EF-S 60 mm F2.8 macro lens: Digital Photography Review
		A white lens mount index differentiates the lens from other EF lenses, which retain their traditional red marking.
		This makes it ideal for set ups where the lens is very close to foreground subject matter, and for use with Canon’s lens mounted macro flash systems; the MT-24EX and MR-14EX twin and ring flash units.
		By optimising Super Spectra lens coatings, Canon’s engineers have been effective in suppressing flare and ghosting, which are more prone to occur with digital cameras due to the relatively reflective nature of image sensors.
	www.dpreview.com /news/0502/05021703canon_efs60mmmacro.asp (705 words)

	EF Lens
		Canon's proprietary EF (electro-focus) lens, which combines a large-diameter fully electronic lens mount and an internal autofocus motor, was born in 1987.
		Canon's EF lens lineup, through the introduction of the latest innovative technologies, has consistently been recognized as the state of the art in the industry.
		Canon EF lenses span the gamut from ultra-wide 14mm to super-telephoto 1200mm lenses and include standard and super-telephoto zoom models, large-aperture lenses, and TS-E lenses, which are equipped with a special tilt-shift mechanism that permits the manipulation of image perspective and distortion.
	www.canon.com /imagecom/ef20m.html (401 words)

	The Sub Club (Site not responding. Last check: 2007-10-13)
		The shutter on the Chaika II is very close to the lens mount, so that any Leica-thread lens with a protruding rear lens element can damage the shutter.
		But the lens mount was not the only change in the camera.
		The lens now had the advantage of a built-in depth-of-field scale, as well and closer focusing to 2.5 feet.
	www.subclub.org /shop/chaika2.htm (269 words)

	Snap-On Lens Mount Instructions
		With the camera facing you, position the lens mount on the right side of camera and align with the camera lens.
		Slide the lens mount on to the camera (see figure 2).
		NOTE: For the Kodak DC 210, the lens mount slips over the top of the camera, not over the side as pictured.
	www.tiffen.com /SnapOn_LMInst.htm (105 words)

	Canon EOS Lens Motors (Site not responding. Last check: 2007-10-13)
		You can leave the lens in AF mode all the time and override the camera's decision at any time (or move AF to a separate button as with the EOS 5 body).
		The pros were the Sigma EX lens felt solid and well made, it focused very quickly compared to micro-motor competition, and at f/2.8 it was wonderfully bright/fast.
		The 24/2.8 is a superbly sharp lens with internal focusing and a floating element.
	www.photo.net /photo/canon/lens-motors (2591 words)

	Canon EF28-80mm Lens Review
		This lens is showing its age, even though I only shot about 20 rolls of film with the lens before I upgraded.
		This lens is a great match for an infrequent photographer with a Canon Rebel.
		It is not a good match for the Elan IIE because of the plastic lens mount and cheap feel.
	www.northrup.org /equipment/EF28-80.htm (312 words)

	Eyepiece (Site not responding. Last check: 2007-10-13)
		The lens for the Nikon FG/EM cameras, part #2946,can be modified in a few minutes to fit the SP and is available for only about $10.
		While filing slip a postcard in the space between the lens and the area you are working on to protect the lens from any slip-ups.
		Finally, using #320 wet/dry sandpaper, thin the back of the lens mount until it fits your camera (it must be quite thin!).
	www.nikonhs.org /tech_articles/eye.html (212 words)

	Tiffen Lenses - warehouseexpress.com
		A lens mount is required for most digital cameras.
		Lens Mount for Nikon 900, 950, 990, 995, 4500
		For example, a 0.56x wide angle lens converts a 38mm lens into a 21.3mm lens (0.56 times 38).
	www.warehouseexpress.com /photo/lenses/tiffen.html (332 words)

	AF 17-35mm f/2.8-4 (D) - warehouseexpress.com
		Designed Exclusively for Pentax digital SLR cameras the Pentax-DA Zoom 18-55 lens is portable and affordable to ensure comfortable, well-balanced operations.
		This compact, lightweight standard zoom lens features an image circle to match the camera's large 23.5mm x 15.7mm image sensor.
		Ideal zoom range for a standard lens - Mounted on the Pentax ist DS, this zoom lens* provides an angle-of-view equivalent to a 27.5mm-84mm lens in the 35mm format that covers the most frequently used ranges from wide angle to moderate telephoto.
	www.warehouseexpress.com /news/digpop/538.html (176 words)

	Leica FAQ - Leica R & M lens mount adapters ?
		In May 2004 Stephen Gandy announced he would start selling lens mount adapters which allow M lenses to be mounted onto third party SLR cameras, specifically Nikon F or Canon EOS.
		The little follower on the lens mount of the Tamron is a piece of metal bent like a L to get the proper width.
		Today I mounted the lens-mount (sans lens) on the R8 and discovered that it's not the L shaped arm that gets jammed, but rather a small spring loaded arm and matching lever in the mount which catch on the camera's feeler.
	www.nemeng.com /leica/017e.shtml (2175 words)

	35mm Single-Lens Reflex Pinhole Photography (Site not responding. Last check: 2007-10-13)
		Cameras are usually shipped with a round cap covering the lens mount on the front of the camera.
		Remove the camera's lens and place the modified lens mount cover on the camera.
		When the foil was on the front, the back edge of the hole in the cover blocked some of the light from reaching the film.
	www.debevec.org /Pinhole (430 words)

	Using the 35mm Nikon Perspective Control Lens
		The bad news is that to meter with this lens, you have to meter stopped-down, with the f/stop closed to shooting aperture.
		According to Nikon's manual for this lens, the picture angle of the horizontally-joined frames is 78 degrees; the 35mm lens unshifted is good for 53 degrees, the 28 for 64 degrees, a 24mm for 74 degrees and a 20mm for 83.5 degrees, so you'd need a 24mm to get the same width of view.
		I did use the lens from time to time, and late in my ownership shot all the Saint Mary's stained glass, except for the one with the flourescent tubes behind it and the one in front of the tea kitchen.
	www.uscoles.com /pclens.htm (3899 words)

	[Nikon] re:bent lens mount (Site not responding. Last check: 2007-10-13)
		Suzy, I had the lens mount repaired (replaced) on an FE2 and a 100-300mm Nikkor; apparently the long zoom got knocked and dameaged both the camera and the lens.
		Authorized Photo Service, of Morton Grove, IL did the repair work as part of a "CLA" on both peices and in addition to the normal cost for the service I was only billed for the additional parts.
		It was dropped and > needs a new lens mount ring but otherwise is functioning.
	photo.cis.to /pipermail/nikon/2002-April/005462.html (272 words)

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