Canon lenses look too expen$ive. What about third-party?
Canon EOS FAQ 2.4 - LensesBecause of the built-in motor, 3rd party lenses for EOS are generally more expensive than their non-EOS counterparts. Canon has been pretty secretive about their lens interface. There have been a few postings to the net implying that Sigma lenses don't AF very well on Canon EOS cameras, or if they do, they only do so for a limited time before failing. On the other hand many users are very happy with Sigma lenses and report no problems at all. Failures may just be isolated cases.
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redrockmicro - Micro35 FAQYes, but please note there is a limitation with Canon EF lenses. Because the aperture is electronic (instead of mechanical), the EF lenses do not allow you to close the aperture without being connected to a canon digital camera body. Despite this limitation, we've seen great footage coming out of EF lenses.
Related QuestionsWhat is Canon?
HârnList & HârnForum - Hârn Frequently Asked Questions (Hârn...Canon" refers to the body of Hârn material, including both Hârnmaster rules and Hârnworld environment, that has been officially published by CGI or Kelestia. The term is used to distinguish such material from fan-produced material (sometimes called "fanon").
Related QuestionsTotal Ministry FAQCanon 9 is part of our national church law that provides for the ordination of local deacons and priests who are ordained and licensed to serve only in their own community. The details of Canon 9 may be found at Episcopal Church Canon 9Related Questions
What other general categories of Canon EOS-compatible lenses are there?
Canon EOS Beginners' FAQ III - LensesIn addition to the aforementioned L series lenses most other Canon EF lenses fall into a number of broad categories. Note, however, that these are not official Canon-named categories. As far as Canon is concerned, EF lenses come in two categories - L and all the rest. Nonetheless these informal categories are useful to keep in mind when lens shopping. the bottom of the consumer line are the cheapies - ultra-low cost, low-quality, slow lenses with plastic mounts and no distance scales.
Related QuestionsWhat are some popular Canon EF and EF-S lenses?
Canon EOS Beginners' FAQ III - LensesProfessional-quality new and old fast wide-angle zoom lenses, used by many photojournalists. Expensive. Pretty well every 300D/Digital Rebel, 350D/Rebel XT and 400D/Rebel XTi owner out there has one of these, since they’re bundled with most consumer Canon digital SLRs sold. Image quality is OK considering the rock-bottom price. Very popular with users of Canon’s subframe D-SLRs, this lens combines decent image quality with a useful focal length range and has image stabilizing to boot.
Related QuestionsWhy are some Canon lenses painted white or silver?
Canon EOS Beginners' FAQ III - LensesNearly all large telephoto L series lenses have barrels constructed from solid metal and painted off-white, rather than black plastic or black-painted metal. Canon say they do this since white surfaces absorb less heat than black when used out in the sun, and fluorite crystal lens elements are sensitive to heat - they can expand and contract, altering their optical properties. Of course, the fact that a white-painted Canon lens stands out in the crowd is probably part of the reason as well.
Related QuestionsAre there compatibility problems with any EF lenses made by Canon?
Canon EOS Beginners' FAQ III - LensesNow, there are minor compatibility issues with IS lenses on certain old EOS cameras - the lenses work, but IS control is a bit weird or the image may shake in the viewfinder. Luckily this latter does not affect image quality of the photos at all. And autofocus-only EF lenses (a handful were made) are not much use on the oddball EF-M camera, which was an EOS camera which lacked autofocus circuitry and which can only be used with manual-focus-capable lenses.
Related QuestionsCan you use non-Canon lenses with EOS cameras?
Canon EOS Beginners' FAQ III - LensesThat depends. Many third party lensmakers - Tamron, Sigma and Tokina being the big three - manufacture lenses specifically designed to fit Canon EOS cameras. These lenses will, of course, work fine with EOS cameras. The main caveat is the compatibility with the electronics detailed above. However, if you have a third-party lens which does not physically fit onto your EOS camera then you can obviously assume that the lens will not work with EOS cameras.
Related QuestionsCan I use my Canon EOS lenses on the SD10 digital camera?
Sigma - Frequently Asked QuestionsThe Sigma SD10 uses Sigma's exclusive SA lens mount, the same as used on Sigma's 35mm SLR cameras. There is a full array of lenses available, from 8mm Circular Fisheye to 800mm APO telephoto, including three 1:1 macro lenses; and zoom lenses from 10-20mm to 300-800mm. By the way the SD10 features a stainless steel camera mount , and all lenses for it feature metal lens mount.
Related QuestionsWhy does Canon offer so many different lenses, some of which seem quite similar?
Canon EOS FAQ 2.4 - LensesThough Canon offers lenses of similar focal lengths, they are targeted at different audiences. Canon has 3 broad categories of lenses: A, B,and L. The "A-series" consists of low-cost lenses for the "snapshooter" market.The original A-series consisted of lenses which were AF-only for use on the 700 and 800 series. They had no manual focus capability of any sort, and also lacked focusing scales. These lenses marked with an "A" after the focal length and aperture designations.
Related QuestionsShould I buy a non-Canon (third party) lens?
Canon EOS Beginners' FAQ III - LensesDespite Canon’s vigorous advertising campaign against third-party lenses a lot of people happily use lenses made by Tamron, Tokina and Sigma (and lenses with other brandnames but probably built by one of those three). And there’s one really good reason for this - the third party lenses are almost always much much cheaper than equivalent offerings from Canon. So. Should you buy a third party lens? It’s not a simple yes/no issue, so here are some points to consider.
Related QuestionsCan you use old Canon manual-focus lenses with EOS cameras?
Canon EOS Beginners' FAQ III - LensesNot really. In the years before introducing EOS autofocus cameras, Canon sold many manual-focus lenses for their SLR cameras. The majority of these lenses are of the FD type. Sadly, FD lenses cannot be used with EOS cameras. The lens mounts are of incompatible sizes and types. This is in contrast to Nikon - most Nikon manual-focus F-series lenses can be used with most Nikon autofocus cameras. Now it is possible to use adapter rings to attach FD lenses to EOS cameras.
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Hardware Maintenance FAQYou should look for a large company with many technicians. The technicians should be trained to support your equipment. This company should keep spare parts in your area.
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RMACA : Frequently Asked QuestionsFirst, search the neighborhood, making sure you call the cat. He or she may be well hidden, but may hear you calling and come running. You may have to try this at night, when there are fewer people and other distractions to scare the cat. Also, talk to people in the neighborhood who may see or have seen the cat. Put up flyers in the neighborhood and in local stores and consider placing "lost" ads in the newspapers and on the Internet, so that anyone who sees or catches the cat knows who to call.
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Canon is still canon but of course your characters are allowed to try and change their future. For example, Percy might have married Audrey but maybe it's because Penelope Clearwater died (which we're not saying she did at this point.) If Penelope came back from the dead and he was still in love with her that might cause some trouble.
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Digital Photography FAQRecent Canon SLRs use a system called E-TTL to determine flash exposure. (Newer models use E-TTL II, which seems to be more robust.) E-TTL is praised by some for allowing very precise control over flash exposure when used properly, but it is slammed by others for being too sensitive to very small changes in the center of the image and requiring too much planning to get proper "automatic" exposure. There is probably some truth in both positions.
Related QuestionsAre there compatibility problems with any EF lenses made by third party manufacturers?
Canon EOS Beginners' FAQ III - LensesSometimes. Unfortunately certain third-party lenses not built by Canon, notably many older Sigma lenses, will not work correctly on some newer EOS camera bodies like the Elan 7/EOS 30/33 and the digital EOS 10D. The most common symptom is the mirror flipping up and then the camera freezing when you try to take a photo. You then have to switch the camera off to unlock it. The only solution to this problem is to see if Sigma will upgrade the lens for you.
Related QuestionsHow can information from the IVE market be used?
Commonly Asked Questions about the Influenza Prediction Mark...accurate forecast of influenza vaccine effectiveness would be helpful in providing advance warning of a suboptimal vaccine to assist in public health preparedness. For example, public health officials could allocate resources to increase prophylactic medication administration, such as neuraminidase inhibitors, in high-risk groups (e.g. nursing home residents and staff).
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Commonly Asked Questions about the Influenza Prediction Mark...We recruit a diverse group of health care workers with information about influenza activity and the effectiveness of the influenza vaccine. Each of the traders is given 100 valueless flu dollars (VEFlu$) with which to trade. This grant grows or shrinks over the course of the influenza season depending upon the accuracy of the individual trader's predictions. Potential traders include physicians, nurses, pharmacists, clinical microbiologists and epidemiologists.
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Frequently Asked Questions - The Mental Health Center of Gre...You have a right to request a copy your records and, if you give us your informed consent by signing a release, we will forward a copy of your records to you or a third party. You must understand that once released, we no longer have any control over what this person or agency does with the information they obtain. Consumers are provided with 25-copied pages at no charge and the cost is $.25 per page thereafter. Please give us a few days notice.
Related QuestionsWhat should I look out for when choosing a Third-Party Administrator (TPA)?
ESOP Frequently Asked Questions (FAQ)middot;Collaborate with your ESOP consulting firm to review your options and assist in building a plan that meets your needs middot;Constantly monitor Internal Revenue Service and Dept. of Labor Regulations to determine their options for and effect on existing and newly created plans middot;Conduct Department of Labor and/or Internal Revenue Service audits of your plan from their office trustees, investment advisors, and attorneys involved with the plan.
Related QuestionsWhat are the lenses made of ?
DirectLineSpecs - FAQWe use a lightweight plastic material called CR39 on most of our lenses. For our thinner lens option a 1.6 high index material, which is thinner and lighter than CR39, is generally used. We do not use glass lenses as a safety precaution.
Related Questionsrelax :.The lenses for Relax sunglasses are produced from high quality polycarbonate or acrylic. Polycarbonate lenses are practically unbreakable, so they are used for almost all Relax sports sunglasses.Related Questions
Cheap prescription glasses, sunglasses, and spectacles from ...We supply lightweight CR39 plastic lenses for the majority of our glasses. For our Rimless Frames we recommend that you upgrade to lightweight polycarbonate lenses. For our thin lenses we use lightweight resin high-index lenses. ALL of our lenses come complete with a FREE hard anti-scratch coating. Our thin high-index lenses also come with a free anti-reflective coating as standard.Related Questions
Prescription Eyeglasses - EyeBuyDirectWe use lightweight CR39 polycarbonate plastic lenses. Our standard lens is 1.499 index. We also offer 'thin-light' and 'super thin' lens upgrades, which are 1.56 and 1.67 high-index lenses respectively. We especially recommend these upgrade if your sphere is +/-2.50 and above. Our recommendations as follows: Furthermore, all our frames come with top quality, anti-scratch, single-vision lens.Related Questions
What do canon and non-canon mean?
FAQ:Storyline - WotchipediaThese are standard terms for describing what's officially a part of the story and what isn't. Characters, actions, and events that are officially a part of the Wotch, as determined by Anne and Robin, are considered canon; and everything else that might happen, or might be discussed in the forum or written about or drawn in fan-created works is considered non-canon unless Anne and Robin say otherwise.
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