Canon 10-22mm VS Sigma 18-50mm @ 18mm
Klam has posted his sample test of Canon 10-22 and Sigma 18-50mm at FredMiranda forum and commented:
“I conducted the test on an overlapping focal length of 18mm. Since I frequently shot my 18-50 at 18mm, I knew I should try to find something wider, which is the reason that I picked up the 10-22.These 100% crops were shot on tripod, delayed timer, RAW straight converted using Canon DPP.
Both lenses are very decent in the centre. The Canon doesn’t seem to show as much improvement and is quite good “wide open” at f/4.0.
The Sigma looks very soft in the corners at f/2.8. At f/4.0 it improves very slightly but still seems soft. Everything is ok by f/8.0. On the other hand the Canon shows a lot of corner detail even at its “wide open” setting of f/4.0. Overall the Canon is a lot better in the corners.”
- Canon 10-22 VS Sigma 18-50 @ 18mm @ Centre
- Canon 10-22 VS Sigma 18-50 @ 18mm @ Upper left-corner
Canon EF 70-300mm f/4-5.6 IS USM - Review @ BobAtkins
Bobatkins.com tested and reviewed the Canon EF 70-300mm f/4-5.6 IS USM and wrote:
“..lens is sharper at f5.6 than the old lens was at f8. Don’t get carried away though, since despite using a UD glass element, it’s still not as sharp as the 300/4L. Even the new lens benefits by stopping down to f8. With an EOS 20D and at f8, on real world targets, image quality almost approached that of the 300/4L is some shots. However on resolution test charts the 300/4L showed higher contrast and resolution. Still, the performance of the new lens is pretty good.
..the new EF70-300/4-5.6 IS fits the bill as an ideal “walking around” lens for nature, travel and sports photographers. It’s small enough and light enough to carry around as part of a kit (it would pair well with an EF-S 17-85/3.5-5.6 USM) and the image quality and stabilization are improved enough over the old lens to justify its additional cost. ..”
Canon 70-300mm f/4.0-5.6 IS USM Samples
Guitarman has some samples from Canon 70-300mm f/4.0-5.6 IS USM with Canon 20D at his website:
@ 300mm:
@300mm and Tamron 1.4x SP(pro)TC
More samples are available here
Comparison of Canon Midrange Zooms
Acapixus did a comparison of Canon EF 24-105/4.0 L IS USM versus a EF 28-105/3.5-4.5 USM and a EF 28-135/3.5-5.6 IS USM versus Canon EF 17-35/2.8 L USM versus Canon EF 50/1.4 USM versus Canon EF 100/2.8 USM macro.
The comparison was shot at ifferent focal length and at different f-stops using a Canon EOS 10D set at ISO 100. The camera was tripod mounted. Images were captured as RAW and converted to 24 bit TIFF files using DPP 1.503. Sharpness was set to 0 (no sharpening) and no other postprocessing has been applied to the images. 200×200 pixel crops were excised from the centre and periphery and saved as TIFF prior to conversion as JPEG files
Nikon 70-200 f/2.8 VR ED-IF AF-S
Exclusive Silent Wave Motor enables ultra-high-speed autofocusing with exceptional accuracy and powerful super-quiet operation. VR operation offers the equivalent of using a shutter speed 3 stops faster. In addition, active vibration mode selection is possible. For using in an active situation such as in a car, boat or plane. VR ON/OFF mode available. 5 ED elements reduce chromatic aberrations providing superior optical performance - even at maximum aperture.
KEY FEATURES
Canon EF 70-300mm f/4-5.6 IS USM - Review by Spoli58
Spoli58, a FredMiranda forum member, posted an extensive report on Canon EF 70-300mm f/4.0-5.6 IS USM and wrote:
“- Overall impression: good quality optics, better than EF 55-200, probably not L grade but not too far if you consider the price and the class of this lens.
- In the range 70 to 85mm @ F8…F11 the results look similar to my EF-S 17-85mm IS USM, surprisingly sharp at the corners (hard to see real differences in terms of sharpness and geometrical distortions) — great outdoor lens in good light conditions.
- At F8 the image is sharp for almost the entire focal range — at the long end (between 200-300mm) the image looks a bit soft without affecting the resolution — maybe it’s just the fact that I’m using a cheap tripod and IS turned on rather than a rock solid tripod, mirror lock and no IS.
Canon EF-S 10-22mm f/3.5-4.5 USM Lens
Ian Andrews posted his Canon EF-S 10-22mm f/3.5-4.5 USM Lens test and wrote:
” The ultra-wide group to which this lens belongs has gone a long way towards overcoming the biggest drawback of cropped sensor dSLR’s, that of lost angle of view at the wide end. Being newly designed, it has addressed all of the other problems that have been thrown up by digital sensors and optically, if they had stopped at 20mm there would be very little to pick up on. The one slight disappointment is the build quality when looked at in terms of the price, as the cost is more than some ‘L’ class lenses and is the biggest barrier to owning this lens after the need to have one of the limited cameras it will fit on.
In summary, the positive points of the Canon EF-S 10-22mm f/3.5-4.5 USM are: Good optical quality, Nice size and weight, No unexpected nasties.
The negative points are: Price, Restricted fitting (Won’t fit D30/60 or 10D), Lens hood is an optional extra.”
Canon 70-300mm f/4.0-5.6 IS USM Sample Photos
Canon 70-300mm F4.0-5.6 IS USM with Canon EOS 350D by Greg Lavaty - Added 09.10.05
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1/500s f/8.0 at 160.0mm iso100 (100%crop)
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1/500s f/8.0 at 160.0mm iso100 (100%crop)
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1/250s f/6.3 at 115.0mm iso100 (Original - large file)
Canon 70-300mm F4.0 - F5.6 IS USM with Tamron 1.4x MC4 TC
New Sigma Fisheye Lenses
Sigma just announced its new digitally optimized fisheye lenses. The new Sigma 15mm F2.8 EX DG Diagonal Fisheye Lens and Sigma 8mm F4 EX DG Circular Fisheye Lens are equipped with a new multi layer coating technology that reduce both flare and ghosting.
Sigma 15mm F2.8 EX DG Diagonal Fisheye Lens PRESS RELEASE
Digitally optimized circular fisheye auto-focus lens - Sigma 15mm F2.8 EX DG DIAGONAL FISHEYE
This digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. This also ensures an accurate color balance and high definition results.
Canon EF 24-105mm F/4L IS USM VS Canon 28-135mm IS USM
Mark D. Segal compared both Canon EOS 24-105mm F/4 L IS USM with Canon EF 28-135mm IS USM and wrote:
“My findings and comparison of key specifications: Insignificant vignetting with either lens; The L lens has generally superior contrast; The L lens displays generally less chromatic aberration, but some exists in the same places where the 28~135 had more; At 105mm it is hard to see much difference in resolution even at 100% magnification; At 28mm and 50mm the differences of sharpness/resolution are obvious even at f8, which should be in the range of the “sweet spot” for both lenses; 24mm really expands the image area considerably compared with 28mm; at the telephoto end 105mm is enough for me, considering that I also have a 70~300mm; Maximum telephoto aperture of f/4 versus f/5.6 (twice the amount of light).”
RELATED ARTICLE
- Canon EF 24-105mm f/4L IS USM Reviews, Sample Pictures & Specifications
- Canon EF 24-105mm f/4L IS USM
- Canon 28-135mm IS USM
