Performance Issue: Canon Lenses or Camera Body Causing Softer Focus
in [Digital Cameras]
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From: ransley on 14 Jul 2010 08:23 On Jul 14, 2:56 am, SneakyP <48umof...(a)WHITELISTONLYsneakemail.com> wrote: > Looking for recomendations on stepping up from that horrid 18-55mm zoom kit > lens in a Canon to a decent zoom lens for a sharper picture. Problem is, > what is the better option? Get the Lens that has a quality of acceptable > sharpness in that particular camera body, or get the camera with better > sensor capabilities? > > My strategy was to always go with investing in lenses first, before even > having a looksee at what else is there to buy in a camera body. > > I use the Canon Rebel XS, so my range may be limited, but I still want to > have upwards mobility for the lenses. IOW - is that sharpness the best I > can expect from this camera body, or does it get ridiculously steeper in > price as a better zoom lens is found? > > -- > SneakyP > To email me, you know what to do. I have a T1i rebel and the newer kit lens, I think in 09 a new kit lens was made standard and is better than the old one, I also have a geat lens a 16-35 L II, my kit lens is sharp as reviews state, its also great for the money, I would test the camera and different lenses to be sure of the issue before just spending money and find its another issue, like possibly you. Dp review might have done a lens test for the new kit lens and their testing allows direct lens comparisons in an interactive test full f stop review, read reviews before you get a new lens, there are alot of compromises to understand that affect only sharpness. Have you used a good tripod, remote release, set to about f8 [ find the sharpest f stop at reviews], shoot 100 iso, mirror lockup, Manual Focus zoomed in, to get the maximum potential. or is it handheld on full auto. Rebels are known to not focus, I have a zoom function on focus and do it manualy or I can get alot of non sharp photos. To get the potential out of a rebel usualy its all manualy done.
From: Peter on 14 Jul 2010 09:38 "krishnananda" <krishna(a)divine-life.in.invalid> wrote in message news:krishna-23238E.09040814072010(a)62-183-169-81.bb.dnainternet.fi... > In article <i1julf$m14$1(a)news.eternal-september.org>, > "David J Taylor" <david-taylor(a)blueyonder.co.uk.invalid> wrote: > >> "SneakyP" <48umofa02(a)WHITELISTONLYsneakemail.com> wrote in message >> news:Xns9DB51DD82567448umofa02sneakemailc(a)127.0.0.1... >> > Looking for recomendations on stepping up from that horrid 18-55mm zoom >> > kit >> > lens in a Canon to a decent zoom lens for a sharper picture. Problem >> > is, >> > what is the better option? Get the Lens that has a quality of >> > acceptable >> > sharpness in that particular camera body, or get the camera with better >> > sensor capabilities? >> > >> > My strategy was to always go with investing in lenses first, before >> > even >> > having a looksee at what else is there to buy in a camera body. >> > >> > I use the Canon Rebel XS, so my range may be limited, but I still want >> > to >> > have upwards mobility for the lenses. IOW - is that sharpness the best >> > I >> > can expect from this camera body, or does it get ridiculously steeper >> > in >> > price as a better zoom lens is found? >> > >> > >> > >> > -- >> > SneakyP >> > To email me, you know what to do. >> >> Some people feel that Nikon offers better value in medium priced lenses >> than Canon - Nikon don't have a two-tier quality system as Canon does >> with >> its "L" lenses. >> >> Having said that, I had thought that Canon's current "kit" lens was >> supposed to be much improved on its earlier version. >> >> David > > A quick peek at Nikon's website shows they still differentiate between > lower-priced "G" lenses and higher-priced "D" lenses. I have no personal > experience with either so I don't know what the quality difference is. > The "D" zooms are mostly constant-aperture f/2.8 and the "G" zooms are > variable-aperture f/3.5-4.5 or f/3.5-5.6 > > As far as lens vs. body, as long as the flange-to-sensor distance is > correct the lens _should_ bear most of the sharpness burden. However > it's worth trying the same lens on your camera and on a different body > at the camera shop to be sure. Almost, but not quite right. Some of the G lenses, such as the 70-200 f2.8 and the 200-400 f4, are pro quality with fixed aperture. For more complete information: http://www.nikonusa.com/Find-Your-Nikon/Camera-Lenses/index.page G simply means there is no aperture control ring on the lens. I know it can get confusing. -- Peter
From: ransley on 14 Jul 2010 09:50 On Jul 14, 2:56 am, SneakyP <48umof...(a)WHITELISTONLYsneakemail.com> wrote: > Looking for recomendations on stepping up from that horrid 18-55mm zoom kit > lens in a Canon to a decent zoom lens for a sharper picture. Problem is, > what is the better option? Get the Lens that has a quality of acceptable > sharpness in that particular camera body, or get the camera with better > sensor capabilities? > > My strategy was to always go with investing in lenses first, before even > having a looksee at what else is there to buy in a camera body. > > I use the Canon Rebel XS, so my range may be limited, but I still want to > have upwards mobility for the lenses. IOW - is that sharpness the best I > can expect from this camera body, or does it get ridiculously steeper in > price as a better zoom lens is found? > > -- > SneakyP > To email me, you know what to do. Before I bought the T1i I tried the Xsi for days and was impressed fully, execpt with autofocus, with my T1i and the extremely good 18-35 LII lens I am still very happy with the kit lens sharpness, you need to figure out your issue yourself. I often use the kit lens, because its real cheap and wont care if I break it and IS. Reviews of the new new Kit lens with IS point out its a great deal for the price. Have you manualy focused, thats a defect that could ruin everything , autofocus. I dont know if you have the zoom function in live view for focus, but that helps me alot for best focus as does a heavy metal tripod, remote shutter release not timer, mirror lock, proper speed , f stop, iso 100. Carbon fiber tripods vibrate for several seconds after being touched, and flimsy metal ones can be worse. I noticed this visable shaking with zoom focusing and it affects photos. I have a heavy maybe 6-7lb Bogen when I want it sharp. That camera should be capable of good results manualy, reviews prove it and so do Canons sales numbers. But on full auto I never get much.
From: otter on 14 Jul 2010 10:18 On Jul 14, 2:56 am, SneakyP <48umof...(a)WHITELISTONLYsneakemail.com> wrote: > Looking for recomendations on stepping up from that horrid 18-55mm zoom kit > lens in a Canon to a decent zoom lens for a sharper picture. Problem is, > what is the better option? Get the Lens that has a quality of acceptable > sharpness in that particular camera body, or get the camera with better > sensor capabilities? > > My strategy was to always go with investing in lenses first, before even > having a looksee at what else is there to buy in a camera body. > > I use the Canon Rebel XS, so my range may be limited, but I still want to > have upwards mobility for the lenses. IOW - is that sharpness the best I > can expect from this camera body, or does it get ridiculously steeper in > price as a better zoom lens is found? > > -- > SneakyP > To email me, you know what to do. If it is possible you might move to a full-frame body some time in the future, buy EF lenses rather than EF-S.
From: Bruce on 14 Jul 2010 10:42
On Wed, 14 Jul 2010 09:04:08 -0400, krishnananda <krishna(a)divine-life.in.invalid> wrote: >A quick peek at Nikon's website shows they still differentiate between >lower-priced "G" lenses and higher-priced "D" lenses. I have no personal >experience with either so I don't know what the quality difference is. >The "D" zooms are mostly constant-aperture f/2.8 and the "G" zooms are >variable-aperture f/3.5-4.5 or f/3.5-5.6 Nonsense! G and D designations have absolutely nothing to do with pricing, nor do they give any indication of optical quality. For example, the AF Nikkor 70-300mm f/4-5.6G is inexpensive junk zoom lens costing a mere $120.00 and delivering mediocre results. Meanwhile, at the other end of the scale, the AF-S VR Nikkor 600mm f/4G is a $10,300.00 lens offering the very highest optical quality. Both are G lenses. All the G tells you is that the lens is one of the newer models without an aperture ring. D lenses have aperture rings. A G lens is also a D lens because it offers the lens-to-camera communication of focusing distance that is used by Nikon's 3D Matrix metering to compute exposures for ambient light and flash. Nikon is gradually replacing its D lenses with G lenses, but some of the remaining D lenses are still among Nikon's very best performers. |