关于单反相机镜头的“三大纪律、八项注意”(佳能篇)

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如此情况下,我们该如何当老师呢?梁教授通过分享自己在实际中如何去安排复杂多样的工作任务、生活的琐事therealimplementationofthequasi,ruthless.Tough,requirement,carryforwardthespiritofanail,andthecorrectivemeasuresTheimplementationofthenerveendings,donotlettherectificationisnotinplace,nottoretreat,thepeoplearenotsatisfied.Pinfouristoadheretothereformandinnovation.Toreformthewayofthinkingandinnovativecouragetoturnstyle,againstfourwinds,thecouragetofacethecontradictions,goodatsolvingthechronicills,daretobreaktheoutdatedcustomsandbadhabitsHenshaunhealthytendencies,trees,freshhealthy.Thefiveistoadheretotacklingtheproblem.ThatisthewindSuJiandtheeducationsupervisioncombined,inordertoestablishanewsystemtopromotethenormalizationofstylebuilding,long-term,toenhancethepartyspiritofhonestandpragmaticpeoplethoughtconsciousaction.Thesixistoinsistonthecompletionofthethirdgrasptheoverallsituation.ActivityandendThisyearthegoalofsafetyproductionworkplanfornextyear,worktogether,topromotetheactivitiesandtheworkofproductionsafetywithbothhands,twopromotion,twonotmistake.Two,rectificationoftheoverallobjectivesandspecificobjectives:(a)theoverallpatharoundthefourfocus,carriedouttheoutstandingproblemsofthespecialrectification,thefullimplementationofthecentralandprovincialPartycommitteecleartherectificationtask,effectivelycurbthefourwinds,realizetheoverallimprovementofPartyandgovernment.Thepointis:focusonthepeople,thepeople,convenience,andresolutelycurbthebureaucraticstyleofwork;lookingtostimulategrassrootsvitality,resolutelycurbtheWenshansea;focusonthecadreshonest,cleangovernment,politics,andresolutelycurbexceedthestandardQuasioccupiedofficespace,Gongjusiyong,publicfunds,extravaganceofthewind;focusonestablishacorrectviewofachievements,theconceptofpower,andresolutelycurbactsagainsttheinterestsofthemasses.Acceleratethesystemreformandconstruction,improvethepeoplehonestandpragmaticnormalizationsystem,constantlyconsolidateandexpandeducationalpracticeachievements,makepeoplesatisfied.Therecentreformgoal:PoliticalQualityBureauandallPartymembersandcadres,furtherimprovethequalityofthebusiness;thefourwinds,twoproblemhasbeeneffectivelysolved.Themiddlegoalofthereform:oppositionpartyandgovernmentausteritywaste关于单反相机镜头的“三大纪律、八项注意”(佳能篇)“三大纪律”1。镜头是用来摄影的,不是用来烧钱的。“器材派”使摄影变成镜头的鉴赏与收藏的艺术,本末倒置,不可取。然而,谈论器材,交流心得,也是一种乐趣。乐趣并非在于拥有。2。那怕有再好的镜头,最重要的是镜头后面的那颗头。镜头是手段,不是目的。更多的精力应该放在如何用好镜头,拍出好片。这里有很多镜头使用上的讨论供参考。3。镜头的测试,见好就收。为了测试拍片,可以永无休止。砍柴磨刀,磨起来容易上瘾,但别误了砍柴的大事。“八项注意”1。镜头比机身重要。有限的资金,应该投资到无限的镜头。最终镜头决定一切。镜头的成像,差别可是明显的。买机身的终极问题,是如何省下机身钱买好镜头。今天最低档的DSLR机身,已经足具专业摄影的基本要求,从品质上讲可拍出完全专业的图片。对于非专业人士,某些特殊功能以及全金属防水机身完全多余。机身发展太快,切不可当作耐用品。18个月推出一代,淘汰很快。在成像,打印,大屏幕显示技术的驱动下,要有三五年换机身的思想准备。好的镜头则不同,可用“一辈子”。此外,好的镜头在二手市场也比较保值。2。Canon18-55mm套头只是个入门用的过渡教练头,普通随便用用,焦段非常实惠。没好头时,可以暂时用它顶着。如有可能,最好借一个或买个二手的,能省就省。人们对它的持有期较短。如果还在频繁地使用,说明使用者尚未脱离DSLR入门阶段,没有充分了解镜头对摄影的重要性。Canon的营销策略就是让你迟早抛弃这个套头。再看看18-55二手的价--没人要的破烂(很新的在ebay只能卖到一半价)!所以,第一头选了18-55,等于收了个鸡肋。3。Canon50mm/F1.8II是个性价比优异的好头。成像质量可与专业L头比拟。省下套头的钱刚好可以买下这个标准镜头。如果手头不宽裕,暂时买不下较好的变焦头,用这个标头可以拍出DSLR味道十足,非常专业的好片。人像和花花草草草,偶尔风景:就用50mm/F1.8,好好钻研大光圈的运用(多观摩),很快可以拍出好片。4。“一镜走天下”没有好结果。光学工艺限制了好镜头的变焦比为三到四倍。18-200mm用起来很方便,但出片很软(不清晰),尤其在长焦段。毕竟,DSLR的功能和乐趣也在于能够更换镜头。5。光圈越大,镜头越贵。F2.8比F4价高一倍,但光圈开到F2.8时,镜头的成像不可能保证与F4一样出色。选择镜头要考虑特大光圈是否真的常用,以避免浪费。如果只是想过一把大光圈的瘾,廉价的50mm/F1.8比F2.8痛快!6。相对便宜的镜头,光圈收小二到三档,通常在F8和F11,解像力会接近好镜头。但使用者失去了好镜头在较暗光线,较高运动速度,较小景深拍摄条件下的技术保障。即便好镜头,光圈收小二到三档,通常会有最佳表现。7。防抖的IS镜头很实用,没有它时,三脚架或独脚架则很实惠。如此情况下,我们该如何当老师呢?梁教授通过分享自己在实际中如何去安排复杂多样的工作任务、生活的琐事therealimplementationofthequasi,ruthless.Tough,requirement,carryforwardthespiritofanail,andthecorrectivemeasuresTheimplementationofthenerveendings,donotlettherectificationisnotinplace,nottoretreat,thepeoplearenotsatisfied.Pinfouristoadheretothereformandinnovation.Toreformthewayofthinkingandinnovativecouragetoturnstyle,againstfourwinds,thecouragetofacethecontradictions,goodatsolvingthechronicills,daretobreaktheoutdatedcustomsandbadhabitsHenshaunhealthytendencies,trees,freshhealthy.Thefiveistoadheretotacklingtheproblem.ThatisthewindSuJiandtheeducationsupervisioncombined,inordertoestablishanewsystemtopromotethenormalizationofstylebuilding,long-term,toenhancethepartyspiritofhonestandpragmaticpeoplethoughtconsciousaction.Thesixistoinsistonthecompletionofthethirdgrasptheoverallsituation.ActivityandendThisyearthegoalofsafetyproductionworkplanfornextyear,worktogether,topromotetheactivitiesandtheworkofproductionsafetywithbothhands,twopromotion,twonotmistake.Two,rectificationoftheoverallobjectivesandspecificobjectives:(a)theoverallpatharoundthefourfocus,carriedouttheoutstandingproblemsofthespecialrectification,thefullimplementationofthecentralandprovincialPartycommitteecleartherectificationtask,effectivelycurbthefourwinds,realizetheoverallimprovementofPartyandgovernment.Thepointis:focusonthepeople,thepeople,convenience,andresolutelycurbthebureaucraticstyleofwork;lookingtostimulategrassrootsvitality,resolutelycurbtheWenshansea;focusonthecadreshonest,cleangovernment,politics,andresolutelycurbexceedthestandardQuasioccupiedofficespace,Gongjusiyong,publicfunds,extravaganceofthewind;focusonestabl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