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  • Canon EF 17-40mm f/4L USM Lens Review
    are very sharp in the center with some softness at the border Stopping down to f 5 6 seems to help and images are sharp across all focal lengths with very vivid colors and exceptional contrast When shooting close objects the closest focusing distance is 0 28m 0 92 leaving the lens wide open will produce a very nice background blur giving you the opportunity to play with the depth of field The lens does not have Image Stabilizer and is somewhat slower then Canon s other ultra wide zoom L lens the EF 16 35mm f 2 8L USM Using a tripod in situations requiring long exposures such as low light photography is highly recommended The shallow hood which comes with the lens is practically useless it does not really help you protect the lens For digital SLR cameras with reduced sensors the hood does not help improve image quality in sunlight and you might want to consider using a longer lens hood to keep out stray light Vignetting f 4 full frame vs 1 6x crop 17mm Vignetting f 4 full frame vs 1 6x crop 40mm Despite its relatively slow maximum aperture Canon EF 17 40mm f 4L USM shows noticeable vignetting on a full frame camera at 17mm with wide open aperture Vignetting is reduced by f 5 6 and practically disappears by f 8 Vignetting is also reduced towards the longer end of the zoom range The lens shows basically no vignetting throughout the zoom on an APS C camera The lens did not show any significant color fringing and withstood flare quite nicely Distortion was moderate on a full frame body at 17mm disappearing around between 24 35mm and was very minor on an APS C body naturally benefiting from the crop introduced by a smaller sensor ISO 100 1 1250 f 4 17mm Title Title Title Title Title Title Title Title Title Title Title View the embedded image gallery online at http slrlensreview com web reviews canon lenses canon wide angle zoom 25 canon ef 17 40mm f4l usm lens review sigProGalleriaaafd211611 Lab Tests Please note that MTF50 results for APS C and Full Frame cameras are not cross comparable despite the same normalized 0 1 range used to report results for both types of cameras Two lens samples were tested in the lab The results varied between samples with center performance variance averaging 4 and border performance variance averaging 23 across all apertures and zoom range The review includes results from the second sample which showed better overall performance Canon APS C Canon EF 17 40mm f 4L USM produced pretty solid results in the lab for an ultra wide zoom lens that is Overall the lens showed better performance in the 24 35mm zoom range and suffered a bit at wider and longer ands of the zoom The lens was quite sharp in the center with excellent performance throughout the zoom and almost all aperture levels Border performance in general lags

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-wide-angle-zoom/25-canon-ef-17-40mm-f4l-usm-lens-review (2016-02-18)
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  • Canon EF 20-35mm f/3.5-4.5 USM Lens Review
    the sharpest wide angle zoom I have tried it did showcase pretty solid performance in the center Even border performance was pretty decent in the f 5 6 f 11 range I would even say that image quality was better then with some of Canon s older wide angle primes Color representation was somewhat on a warmer side which is quite typical of Canon s lenses and images did not seem to carry enough contrast there was no punch that would make you think that the objects are truly 3D Vignetting f 3 5 full frame vs 1 6x crop 20mm Vignetting f 4 5 full frame vs 1 6x crop 35mm The lens produced mild vignetting on a full frame Canon 5D at 20mm with wide open aperture As you move toward the longer end of the zoom range vignetting is reduced and by 35mm it s practically not even noticeable On the other hand the lens did not produce any significant vignetting on an APS C body Stopping down the lens obviously helps reduce vignetting and from f 5 6 through the rest of the aperture range vignetting is non existent Surprisingly for a wide angle the lens did not show significant color fringing on either APS C and FF bodies some color fringing exists around borders but it s not the worst one can see in a wide angle On a not so positive note the lens showed goodly amount of barrel distortion at 20mm which is reduced and is practically non existent towards the longer end of the zoom Finally the lens also showed good handling of flare looks like that unusual diaphragm does actually help here ISO 100 1 2000 f 3 5 20mm 100 crop Canon EF 20 35mm f 3 5 4 5 USM image gallery Lab Tests Please note that MTF50 results for APS C and Full Frame cameras are not cross comparable despite the same normalized 0 1 range used to report results for both types of cameras Canon APS C Canon EF 20 35mm f 3 5 4 5 USM showed rather interesting performance in the lab The lens produced pretty solid results in the center pretty much across the entire zoom range Performance was at its best in the f 5 6 f 8 range and somewhat worse at the ends of the tested aperture range Image sharpness around borders with wide open apertures was unimaginative at best but improved once stopped down to f 5 6 Overall the lens showed most balanced results in the f 5 6 f 8 range where it is capable of delivering excellent 16in and decent 19in prints Conclusion The results come as a surprise since I certainly did not expect much from this relatively old in terms of design and inexpensive UWA zoom AF system was pretty accurate and reasonably fast although and this is typical of most AF systems it hunted in low light MTF50 Line Width Inch on the Print

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-wide-angle-zoom/28-canon-ef-20-35mm-f35-45-usm-lens-review (2016-02-18)
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  • Canon EF-S 10-22mm f/3.5-4.5 USM Lens Review
    front and rear lens caps manual and warranty card The lens accepts EF 83E lens hood sold separately You can also use LP1319 soft case also sold separately The lens is also compatible with Canon s extension tubes EF 12 II and EF 25 II Summary Lens Composition 13 elements in 10 groups Angular Field 107 63 degrees Minimum Focus 24cm 0 79ft Focusing Action AF MF USM f stop Scale f 3 5 f 22 camera controlled Filter Size 77mm Lens Hood EW 83E optional Weight 385g 13 6oz Dimensions 84x90mm 3 3x3 5 Lens Case LZ1319 optional Field Tests Canon EF S 10 22mm f 3 5 4 5 USM showed very solid results At 10mm the lens shows very noticeable barrel distortion which is expected from an ultra wide zoom lens but is still disappointing You will notice most distortion around corners where objects get stretched and disfigured The lens also showed noticeable vignetting when wide open which can be explained by the fact that the lens is designed for APS C cameras and has a reduced imaging circle Also bear in mind that the lens accepts 77mm filters so you need to be careful when shooting at the widest focal length if you use a thick 5mm circular polarizer vignetting can become even worse Images taken with the lens were very sharp in the center across all focal lengths but the border quality suffered so stopping down to f 5 6 or f 8 is recommended to achieve the best results Flare was well under control positive surprise for an ultra wide zoom Another positive surprise is relatively low for an ultra wide zoom lens at least chromatic aberration The lens does not have Image Stabilizer so you should consider using a tripod when taking long exposures Also the lens is not weather or dust sealed so be careful exposing it to nature elements The biggest gripe for me is the lack of a lens hood needs to be purchased separately for US 40 which is a must in my opinion for both protecting the front element as well as shielding the lens from stray light The lens is mindbogglingly wide it is even wider then Canon s fish eye lens A dream or a curse for landscape photography but rather not suitable for portraits At 10mm the lens takes in a very wide angle of view a bit over 107 degrees to be precise Composition at this focal length is rather difficult since you ll be capturing pretty much everything from the ground under your feet to clouds in the sky Title Title Title Title Title View the embedded image gallery online at http slrlensreview com web reviews canon lenses canon wide angle zoom 26 canon ef s 10 22mm f35 45 usm lens reivew sigProGalleriaf8ad93b1cf Lab Tests The lens shone in the lab tests It delivered very good results across all focal lengths with sharpest results at 17mm Here you will be able to

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-wide-angle-zoom/26-canon-ef-s-10-22mm-f35-45-usm-lens-reivew (2016-02-18)
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  • Canon EF 24-105mm f/4L IS USM Lens Review
    coveraget range The so called standard zoom category of lenses is choke full of lenses from both original equipment manufacturers as well as third party independent manufacturers like Sigma and Tamron The category remains very popular not only among pros and semi pros but also among novice first timers who typically choose a standard zoom as their first lens due to its versatility Yet despite so many choices out there Canon EF 24 105mm f 4L IS USM was eagerly anticipated by many simply because it was one of the first professional or L type in Canon jargon grade stadard zooms with an image stabilization technology Priced at US 1 050 as of February 2007 the lens is not the cheapest among standard zooms but still affordable for many who want a quality lens for daily use The optical construction of the lens consists of the lens consists of 16 elements in 12 groups certainly not a trivial configuration even for a zoom This includes a single Super UD and three aspherical lenses designed to minimize various forms of aberrations and reduce distortion at wider angles The build quality of the lens is simply superb typical of Canon s other L grade lenses the barrel is made of hardened plastic with nice black finish fully ruberrized zoom and focus rings and full sealing against dust and moisture The lens weighs 670g 23 6oz and measures 83 5 x 107mm 3 3 x 4 2in although the lens extends during zooming towards the long end of the supported range adding extra 3 or 4cm At this size and weight EF 24 105mm f 4L IS USM is not the smallest or lightest standard zoom out there so some users especially those of you owning a Leica M might cringe at the idea of using this lens for descrete street photography The lens incorporates a modern USM type auto focusing motor Manual focusing is still possible using a dedicated focusing ring switch the lens into a fully manual mode using an AF MF switch found on the side of the barrel or simply nudge the focusing ring a little bit to correct minor auto focusing errors Like with all modern EF EF S lenses Canon EF 24 105mm f 4L IS USM does not have a dedicated aperture ring and all aperture settings have to be controlled directly from the camera The minimum supported aperture is f 22 As mentioned above the lens incorporates an image stabilization technology that is marketed to help stabilize the lens up to extra 3 f stops This is obviously a nifty feature for hand held photography The IS however should be disabled when the lens is used on a tripod if you don t turn it off you risk damaging the mechanism which will keep trying to engage even with the lens positioned completely stationary And even if you avoid damaging the IS mechanism you risk additional shake from the internal gyroscopes going wild trying to

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-standard-zoom/36-canon-ef-24-105mm-f4l-is-usm-lens-review (2016-02-18)
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  • Canon EF 24-70mm f/2.8L USM Lens Review
    on a full frame body The factory box includes Canon EF 24 70mm f 2 8L USM lens front and rear caps EW 83F lens hood LP1219 soft lens case manual and registration card The lens is compatible with Canon s Gelatin Filter Holder Adapters III and IV as well as EF 12 II and EF 25 II extension tubes Summary Lens Composition 16 elements in 13 groups Angular Field 74 29 degrees Minimum Focus 38cm 1 25ft Focusing Action AF MF USM f stop Scale f 4 f 22 camera controlled Filter Size 77mm Lens Hood EW 83F included Weight 950g 2 1lb Dimensions 83x123mm 3 3x4 9 Lens Case LP1219 included Field Tests The lens fared quite well in the field image quality was superb throughout tested aperture range and across the supported zoom range Visually border quality was more or less on par with center quality although both seemed to deteriorate ever slightly towards the longer end of the zoom Color representation was quite accurate with images showing good to excellent levels of contrast throughout the zoom range Vignetting f 2 8 full frame vs 1 6x crop 24mm Vignetting f 2 8 full frame vs 1 6x crop 70mm The lens showed minor levels of vignetting on a full frame body with wide open aperture Vignetting at f 2 8 is persistent throughout the zoom range but basically disappears once stopped down to f 4 and beyond The lens fared much better on an APS C camera where it shows basically no vignetting throughout the zoom and all aperture levels Canon EF 24 70mm f 2 8 showed very good control of color fringing as well as held up nicely against flare The lens also did not show any major distortion throughout the zoom range which while a positive attribute in any lens should not come as a surprise for a standard zoom lens ISO 100 1 2500 f 2 8 24mm Canon EF 24 70mm f 2 8L USM image gallery Lab Tests Please note that MTF50 results for APS C and Full Frame cameras are not cross comparable despite the same normalized 0 1 range used to report results for both types of cameras Canon APS C Canon EF 24 70mm f 2 8L USM showcased very solid performance on an APS C type camera Center performance was excellent throughout the zoom range typically reaching best performance by f 5 6 Border quality was lagging a bit this is especially noticeable at wider apertures but even there the shows pretty consistent results f 5 6 f 8 gives the best results and here here the lens is capable of producing outstanding 16in prints throughout the zoom range Conclusion Very decent overall performance for a standard zoom lens MTF50 Line Width Inch on the Print 24mm Normalized raw MTF50 24mm MTF50 Line Width Inch on the Print 35mm Normalized raw MTF50 35mm MTF50 Line Width Inch on the Print 50mm Normalized raw MTF50 50mm MTF50

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-standard-zoom/32-canon-ef-24-70mm-f28l-usm-lens-review (2016-02-18)
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  • Canon EF 28-135mm f/3.5-5.6 IS USM Lens Review
    box includes the Canon EF 28 135mm f 3 5 5 6 IS USM lens front and rear lens caps manual and warranty cards The lens accepts gelatin holder adapters as well as EW 78BII lens hood You can also use Canon s extension tubes EF 12 II and EF 25 II with this lens Summary Lens Composition 16 elements in 12 groups Angular Field 75 18 degrees Minimum Focus 50cm 1 6ft Focusing Action AF MF USM f stop Scale f 4 f 22 camera controlled Filter Size 72mm Lens Hood EW 78BII optional Weight 540g 18 9oz Dimensions 78 4x96 8mm 3 1x3 8 Lens Case LP1116 optional Field Tests Canon EF 28 135mm f 3 5 5 6 IS USM achieved best results in the 28 50mm range Here both center and border quality remained reasonably sharp From 50mm an up the lens shows noticeable softness around borders throughout the aperture range The fact that the lens is quite slow at its telephoto zoom range does not really help here either so overall I found myself often avoiding the telephoto side AF performance was quite good throughout the zoom range and the lens did not hunt much even in low light conditions The lens showed practically no visible barrel distortion throughout the zoom range At 28mm the lens showed minor vignetting which could be controlled by stopping down to f 5 6 or f 8 At 50mm and beyond vignetting is pretty much minimal so there s nothing to worry about Chromatic aberration also seemed well under control CA was very minimal in the center and slightly more pronounced in the corners but again nothing extreme The 5x zoom of this lens was quite useful in some situations however keep in mind that on APS C cameras the lens looses its wide aspect so the overall zoom range is probably going to be less exciting Title Title Title Title Title Title Title View the embedded image gallery online at http slrlensreview com web reviews canon lenses canon standard zoom 37 canon ef 28 135mm f35 56 is usm lens review sigProGalleriaf0c14fd71a Lab Tests Please note that MTF50 results for APS C and Full Frame cameras are not cross comparable despite the same normalized 0 1 range used to report results for both types of cameras Canon APS C The lens showed very mixed results in the lab Performance in the center was quite decent from 28mm all the way to 50mm but quickly degraded towards the telephoto range of the zoom and at 135mm was just plain average Performance at the borders was even worse at 28mm the lens was moderately sharp but quality started to fall off pretty quickly starting at 35mm The lens performed consistently at different aperture settings which in general is a positive characteristic Overall you would achieve best results at 28mm where you will be able to get very good 11in prints and OK 16in prints At the telephoto side border quality

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-standard-zoom/37-canon-ef-28-135mm-f35-56-is-usm-lens-review (2016-02-18)
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  • Canon EF 28-300mm f/3.5-5.6L IS USM Lens Review
    3 5 f 38 camera controlled Filter Size 77mm Lens Hood EW 83G included Weight 1670g 3 7lb Dimensions 92x184mm 3 6x7 2 Lens Case LZ1324 included Field Tests Canon EF 28 300mm f 3 5 5 6L IS USM handles pretty much like any other Canon autofocus lens with one notable exception the push pull type zoom mechanism More on that later though As mentioned above the lens is pretty heavy so shooting it off hand is a pretty strenuous task The IS system obviously helps here but any IS has its own limitations especially at the longer focal lengths The AF system is pretty fast and more or less accurate meaning it focused on target quite well in most situations Canon includes a lens hood with EF 28 300mm f 3 5 5 6L IS USM which unfortunately is not going to be very practical in all situations The hood is pretty shallow and is much more suitable for wide end of the zoom range The hood is unlikely to block any stray light at the long end of the zoom range The good news at least is that despite a pretty complex optical design with so many glass elements the lens is not very prone to flare Yes if you try to shoot with a direct light source right in the middle of the frame you would obviously get some flare but other then that the lens shows quite good handling in backlit as well as near frame lit conditions The entire push pull mechanism is pretty controversial Many users swear by it and love it Others Well I belong to that other group There are a number of problems with such zoom mechanism in my opinion Firstly in order to zoom precisely you need to loosen the collar ring enough to reduce the friction This makes the lens susceptible to occasional zoom creep when the barrel is tilted up or down during shooting Refastening the collar ring takes valuable time On the other hand if you don t loosen the collar ring to make the barrel movement smoother then your entire setup can roil back and forth during zooming not an ideal case during composition Finally the frequent push pull moves the air inside the lens and blows it right onto the camera s chamber disturbing the dust inside Care about dust bunnies anyone Image quality was decent but not quite on par with some of the best dedicated lenses in wide or telephoto categories The lens did seem to perform somewhat better at wider apertures although the difference was marginal to the naked eye Generally speaking both borders as well as center image quality was best with stopped down apertures f 8 f 11 range produced best resolution And there did not seem to be much difference in image quality when the lens was used on a FF vs APS C type cameras Vignetting f 3 5 28mm full frame vs 1 6x crop Canon EF 28 300mm f 3 5 5 6L IS USM produced pretty noticeable vignetting on a full frame camera Vignetting was present at wide apertures throughout the zoom range which is a bit disappointing At 28mm vignetting is pretty pronounces and remains visible albeit at lower level all the way to f 8 Vignetting is almost as pronounced at longer focal lengths and even at 300mm the lens vignettes pretty noticeably at f 5 6 as well as at f 8 Vignetting is much better controlled on an APS C body with cropped sensor and is minimal to nonexistent throughout the zoom range The lens showed minor degree of chromatic aberration primarily around borders although the artifact was not that disastrous The lens also showed minor degree of axial CA halation at wider apertures in the 28 50mm range predominantly in high contrast areas Again nothing drastic Color reproduction was decent although like with many Canon lenses EF 28 300mm f 3 5 5 6L IS USM produced colors that looked a bit warm Images generally carried good amount of contrast except in the 200 300mm range where the contrast was affected by the somewhat lower resolving power of the lens ISO 100 1 1250 f 3 5 28mm 100 crop Title Title Title Title Title Title Title Title Title View the embedded image gallery online at http slrlensreview com web reviews canon lenses canon standard zoom 39 canon ef 28 300mm f35 56l is usm lens review sigProGalleriaf9d06d9ff0 Lab Tests Please note that MTF50 results for APS C and Full Frame cameras as well as cameras from different manufacturers are not cross comparable despite the same normalized 0 1 range used to report results for all types of cameras Canon APS C The lens showcased somewhat mixed performance on an APS C body Image quality in the 28mm to 100mm was quite decent with excellent center image quality throughout the testes apertures Border quality lagged a little bit and at wider apertures performance was kind of average but once stopped down to f 5 6 f 8 for 100mm image quality improved quite drastically reaching very respectable levels The lens is capable of delivering outstanding 16in prints pretty much throughout the supported aperture settings in the 28 100mm range and even outstanding 19in prints in the 28 50mm range if you stop down the lens to f 8 In the 200 300mm range the lens would still produce OK 19in prints Conclusion The overall results are not that bad It s that they are not that good either 28 100mm range is clearly the sweet spot for the lens but the longer end of the zoom is plain average MTF50 Line Width Inch on the Print 28mm Normalized raw MTF50 28mm MTF50 Line Width Inch on the Print 50mm Normalized raw MTF50 50mm MTF50 Line Width Inch on the Print 100mm Normalized raw MTF50 100mm MTF50 Line Width Inch on the Print 200mm Normalized raw MTF50 200mm MTF50 Line

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-standard-zoom/39-canon-ef-28-300mm-f35-56l-is-usm-lens-review (2016-02-18)
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  • Canon EF-S 17-55mm f/2.8 IS USM Lens Review
    lens hood which as mentioned earlier has to be purchased separately Summary Lens Composition 19 elements in 12 groups Angular Field 78 27 degrees Minimum Focus 35cm 1 15ft Focusing Action AF MF USM f stop Scale f 4 f 22 camera controlled Filter Size 77mm Lens Hood EW 83J optional Weight 645g 22 8oz Dimensions 83 5x110mm 3 3x4 4 Lens Case LP1219 optional Field Tests The first thing I noticed after attaching the lens is that it dwarfed my Canon 400D XTi not in a bad sense but because Canon EF S 17 55mm f 2 8 IS USM is longer and wider then its close brethren the EF S 17 85mm f 4 5 6 IS USM it kind of feels big on the camera Of course one might argue that there are even bigger lenses out there Yes that s true if we consider telephoto zooms but standard or ultra wides Anyhow just an observation The lens performed really well in the field It was very sharp across the entire zoom range with very high center and border image quality Furthermore the results were very consistent throughout the zoom range the borders never really fell off like with some other lenses The lens did produce some noticeable vignetting so be careful using polarizers when shooting panoramic scenes with vast blue skies vignetting can become more pronounced But stop down to f 5 6 and vignetting is pretty much gone I did not notice any significant chromatic aberration even around corners Furthermore flare was very well under control even in harsh back lit conditions Canon does not supply a lens hood with the lens Yes I repeat myself here but the fact that I need to spend extra 30 40 for a hood after paying 1 000 for the lens actually bugs me After all Canon included a lens hood and lens case with EF 17 40mm f 4L USM which is priced a few hundred dollars less then 17 55mm lens so be mindful of bright side light sources Oh and the lens is not weather sealed so think twice before exposing it to rain sand or other harmful nature elements Canon EF S 17 55mm f 2 8 IS USM covers one of the most useful zoom ranges for me at least from ultra wide 17mm to standard 55mm At 17mm the lens is wide enough to help you in landscape photography and at 55mm it can become a good portrait lens Image Stabilizer is obviously a bonus here but I m wondering how much it adds to the price tag and would see a cheaper version of the lens without IS Combined with its high speed the lens is a very interesting choice for a standard walk around lens Lab Tests Canon EF S 17 55mm f 2 8 IS USM continued to produce very impressive results in the lab and was tack sharp across all tested focal lengths The center quality is on

    Original URL path: http://slrlensreview.com/web/reviews/canon-lenses/canon-standard-zoom/29-canon-ef-s-17-55mm-f28-is-usm-lens-review (2016-02-18)
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