Showing posts with label slr camera lenses. Show all posts
Showing posts with label slr camera lenses. Show all posts

Canon EF 500mm f/4L IS USM Super Telephoto Lens for Canon SLR Cameras Review

Canon EF 500mm f/4L IS USM Super Telephoto Lens for Canon SLR Cameras
Average Reviews:

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After noting the captions of exceptional photographs that appeared in nature and photography magazines were often shot with this lens, I began to read the reviews. Based on the uniformly excellent reviews, I bought this lens and spent two weeks this January in the Florida Everglades taking pictures of birds. Based upon my experience with the lens, I would rate this as second in sharpness and contrast only to the 300 mm f2.8 Canon L series lens. The lens is handholdable for short periods to shoot birds in flight, but it is best suited for use on a solid tripod with a Wimberley tripod head to allow tracking of birds in flight.
Jerry Reed
Giclée Maker
http://www.newlightimages.com/

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Next-generation super telephoto L-series lens with an Image Stabilizer, it's one of the world's best lenses for wildlife and nature photography. The optical system is newly designed with a maximum aperture of f/4. One fluorite element and two UD-glass elements effectively correct aberrations resulting in sharp and excellent delineation. Sample Image

MTF Chart



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Canon EF 400mm f/2.8L IS USM Super Telephoto Lens for Canon SLR Cameras Review

Canon EF 400mm f/2.8L IS USM Super Telephoto Lens for Canon SLR Cameras
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I consider this lens indispensible for the photography I do (action and sports). It has paid for itself in photographic sales many times over with images that no other lens can take. I combine it with good camera support (Gitzo 1325) and a Wimberly head. With a 1DMk2 body, we're talking over 15 lbs, and that's not something you want to hand hold. The images at f/2.8 are sharp and contrasty. When I nail a shot, the shallow depth of field is breathtaking. It's ability to stop action and to work in low light is amazing. I've had someone ask me how often I use this lens, and the answer is "every chance I get." You want to know how Sports Illustrated Photographers get their shots? This is part of their toolkit.

Click Here to see more reviews about: Canon EF 400mm f/2.8L IS USM Super Telephoto Lens for Canon SLR Cameras

Super telephoto L-series lens with an Image Stabilizer for use in track and field sports as well as low-light nature and wildlife photography. The fluorite element and two UD-glass elements result in high resolution and high contrast. The ring USM and an improved AF drive algorithm make the AF speed the fastest in the world when used with the EOS-1v and EOS-3. This lens has the same AF stop and focus preset features as the EF 300mm f/2.8L IS USM. Sample Image

MTF Chart



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Canon EF 24-105mm f/4 L IS USM Lens for Canon EOS SLR Cameras Review

Canon EF 24-105mm f/4 L IS USM Lens for Canon EOS SLR Cameras
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I am a hobbyist and this review is for people like me. What I mean by that is that I take pictures for fun and nobody buys my pictures. I mostly shoot landscape, nature, and portraits of family, friends, and relatives. I will refer to 24-70mm as the 70, and the 24-105mm IS as the 105. I first made the mistake of buying the 70, then I returned it with a hefty restocking fee and bought the 105 - I don't have the slightest regret and I could not be happier. I'm taking my time to write this review so that you can spend your hard earned money wisely. Let's analyze the trade-off between the two:
* Both lenses have excellent build and image quality. So these are not differentiating factors.
* The one and only advantage of the 70 is the one smaller f-stop. For me, this means more blur when I shoot portraits, so this is all good.
* The advantage of 105 over the 70 are as follows:
- You get an extra 35mm, which is 50% more zoom. I like this.
- You get a 3-stop IS. For me, this is a great advantage, because I rarely use tripods and IS saves the day. I would choose the 105 over 70 for the IS alone.
- The 105 is 10 ounces lighter and close to half an inch shorter.
The last part is the most important part: that additional 10 ounces make a heavy lens TOO HEAVY, and that extra length makes a big lens TOO BIG. Carrying the 70 on my 50D was a pain. I can assure you, the 70 is just too heavy to walk around and take pictures for fun. The keyword here is "fun". The 70 is a pain, the 105 is fun. The 105 is still heavy, but not too heavy. It's still big, but not too big. After having the 70 for a few weeks, I lost all my joy for shooting. It just made me very uncomfortable (and I'm 6-foot 2). When I replaced it with the 105, it did make a difference. I enjoy taking pictures now, once again. Pros might like the 70 because they need it for their professional work. But if you're shooting just for fun, stay away from the 70 and get the 105.

Click Here to see more reviews about: Canon EF 24-105mm f/4 L IS USM Lens for Canon EOS SLR Cameras

The L-series is Canon's flagship professional lens range, designed to include outstanding image performance, ultimate operability and weather resistance. The EF 24-105mm f/4L IS USM offers a lightweight alternative to the renowned EF 24-70mm f/2.8L USM. offers the highest possible optical quality with no change in aperture over the full focal range of the lens. This allows photographers to set exposure at the widest aperture and zoom all the way through to 105mm without having to vary the shutter speed. Image Stabilizer (IS) dramatically reduces image blur caused by camera shake. Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane. The 3 stop advantage means that photographers normally shooting a 105mm lens handheld at 1/125 sec can obtain a shake free result with a shutter speed as low as 1/15 sec, for vastly extended options in low light conditions. The ring-type USM motor found in the EF 24-105mm f/4L IS USM employs ultra-sonic frequency vibrations to drive auto focus with unrivalled speed and near-silent operation. A powerful CPU and improved AF algorithm contribute to speed performance. Good holding torque stops the lens with precision and accuracy, the instant it arrives at the correct focus point and without overshoot. Photographers can choose manual focus instantly and at any time simply by moving the manual focus ring without first having to switch out of auto focus mode. Circular aperture producing attractive background defocus Inner focusing, ring USM and new AF algorithms for fast and quiet autofocusing Manual focusing enabled even during AF mode (full-time mechanical manual focus) Only environmentally friendly lead-free glass used in lens construction Filter diameter 77 mm / Dimensions (dia x len)

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Nikon 18-200mm f/3.5-5.6G AF-S ED VR II Nikkor Telephoto Zoom Lens for Nikon DX-Format Digital SLR Cameras Review

Nikon 18-200mm f/3.5-5.6G AF-S ED VR II Nikkor Telephoto Zoom Lens for Nikon DX-Format Digital SLR Cameras
Average Reviews:

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I believe it was Thom Hogan who described this lens as not perfect but really good at everything. That's the review in a nutshell.
This is what I would term a prosumer lens. It certainly is not cheap yet it does not have the build quality of Nikon's top-of-the-line. The barrel, for example, is plastic rather than metal. I fear that a drop would be catastrophic and even a hard bang on the edge of a table might do serious damage if the lens was fully extended. On the other hand, this lens is a lot less expensive than those in the Nikon pro line. In addition, the lens is much lighter and easier to carry than it would be were it made entirely of metal.
It is my understanding that the only meaningful difference between this lens (the VR II) and its immediate predecessor is the addition of a cam lock to prevent lens creep. My own sample doesn't creep at all, even with the cam unlocked but apparently that has been a significant irritant for a number of buyers.
The use of "VR II" in the name is potentially misleading because it may lead shoppers to believe that the VR system has been improved over the original model. This is not the case. Both the original 18-200 and the new version contain Nikon's second generation VR system. Some have suggested that Nikon's marketing is a bit shady on this point while others counter that the "II" simply designates a new model.
Sharpness is less than absolute across the entire range but more than adequate for anything that an amateur, or even most professionals, is likely to need. There is mild to moderate distortion, more marked at the focal length extremes but scarcely visible in the vast majority of images and readily correctable in Photoshop, DxO, or other post-processing software. Contrast is crisp and I find the lens surprisingly free of flaring and ghosting.
No one should buy this lens thinking that it will make him/her a better photographer. Good photography is in the mind and the eye, not in camera. What the 18-200 will do, though, is provide a one-lens solution to the great majority of focal length needs, minimizing the need to tote a hefty bag full of lenses. It happens that, as a long time Nikon user, I have such a bag. Despite all the choices at my disposal, my 18-200 probably stays on my camera 85-90% of the time.
Folks who are obsessed with numbers, charts, and MTF curves will probably fret over the 18-200, taking delight in pointing out every little defect. For the rest of us, the only significant downside that I see is that the lens is not ideally suited for extended service in rough environments or adverse weather situations. Since most of us seldom shoot in such circumstances, this should not be much of a problem.
I heartily recommend the Nikon 18-200mm f/3.5-5.6 G AF-S ED VR II (whew! what a mouthful) to any advanced amateur or professional seeking a highly usable wide range zoom.

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The 11x AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II boasts a picture angle equivalent to a 27-300mm lens in the 35mm format, and offers VR II image stabilization, giving photographers the ability to shoot in challenging conditions at as many as 4 shutter speeds slower than would normally be necessary for striking image sharpness. Also new to its design is a zoom lock, allowing users to apply specific resistance to the zoom mechanism to avoid unwanted changes in focal length. The tremendously versatile AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II is an ideal, high-performance one-lens solution.FEATURES:11x Zoom versatility - A remarkable 18-200mm one-lens solution, adept in a wide variety of situations. Picture angle equivalent of a 27-300mm lens in 35mm format.Nikon VR II (Vibration Reduction) image stabilization - Vibration Reduction, engineered specifically for each VR NIKKOR lens, enables handheld shooting at up to 4 shutter speeds slower than would otherwise be possible, assuring dramatically sharper images.Two Extra-low Dispersion (ED) elements - Offers superior sharpness and color correction by effectively minimizing chromatic aberration, even at wide aperture settings.Three aspherical lens elements - Virtually eliminates coma and other aberrations, even at wide apertures.Zoom lock switch - Secures lens barrel at its minimum length.Nikon Super Integrated Coating (SIC) - Enhances light transmission and offers superior color consistency and reduced flare.Exclusive Nikon Silent Wave Motor (SWM) - For fast, accurate and quiet autofocus.Rounded 7-blade diaphragm - Renders more natural appearance of out-of-focus image elements.Focus to 20 inches - Extends versatility.M/A focus mode switch - Enables quick response to changing situations between manual and autofocus operation.Flower-shaped lens hood - Included HB-35 lens hood. Shades the objective from unwanted, image-degrading light.

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