Posts Tagged “Aspherical”

I purchased this lens, then barely used for the first few months. One day I was in a creative rut, so I decided to spend a day taking photos with only the lens I used the least. That day resulted in this becoming a favorite lens. On my 40d it’s equivalent to around a 38mm focal length, which I find to be quite versatile. Read more...
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Sigma 18-50mm f/3.5-5.6 DC Aspherical Zoom Lens for Nikon Digital SLR Cameras What a beautiful lens. I am using it for close up (tabletop) phototgraphy and could not be happier. It does the job better than my Nikon macro 50mm. This lens is much more versitile. I cannot believe the price and the excellent service. I will buy from you again!.
Feature
- 18mm super-wide-angle
- Aspherical lenses provides correction for various aberrations
- Minimum focusing distance of 25cm (9.8 in.)
- Capable of macro photography
- Compatible with Nikon Digital SLR Cameras
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Beauty is in the eye of the beholder and so, I think, is one’s opinion of a camera lens. I’ve learned over the years that lens reviews are helpful, but they are just opinions. Yes, for sure, you generally get better optics with more expensive lenses, but it’s certainly not a guarantee. And for reasons one can only wonder about, oftentimes two copies of the same lens will produce very different results. For example, my friend Sara, who is as nuts about buying (we’re like compulsive buyers) and using Canon lenses as I am about buying and using Nikon ones, has a Canon EF-S 18-55 kit lens that produces images so tack sharp through its whole range that would make you cry. Read more...
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Apparently, this lens is available in two versions for the Nikon. The AF018N-700 does NOT have a built in motor for AF. The AF018NII-700, does. If you want AF and your camera does not have an AF motor in the body, make sure you get the lens with the motor. Reading through the reviews on this page, it seems that people are reviewing the two different lenses here, thus the confusion. This lens does not have a motor. The AF works fine with my D300, but not with my D3000.
Feature
- Advanced Optical Design
- Internal Surface Coating to Reduce Ghosting and Flare
- Zoom Lock Mechanism
- Di-II Series Design
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Beauty is in the eye of the beholder and so, I think, is one’s opinion of a camera lens. I’ve learned over the years that lens reviews are helpful, but they are just opinions. Yes, for sure, you generally get better optics with more expensive lenses, but it’s certainly not a guarantee. And for reasons one can only wonder about, oftentimes two copies of the same lens will produce very different results. For example, my friend Sara, who is as nuts about buying (we’re like compulsive buyers) and using Canon lenses as I am about buying and using Nikon ones, has a Canon EF-S 18-55 kit lens that produces images so tack sharp through its whole range that would make you cry. Read more...
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So maybe I am very lucky. My copy of this lens is superb. Yes there is a difference in sharpness when shooting at 2.8 but it is still very sharp and once you go smaller than the 4’s it is SHARPER than comparable nikon lenses.
This lens is quiet, focuses fast and zooms smoothly on my D80. All three of these things are issues others have had but I do not have. Cameta has a good return policy so why not try it at this price? I am happy I decided to go for it and feel like it is one of the best deals in my bag. Please note: (I have several fast pro Nikon lenses I have compared this too when making my review, not just other 3rd party lenses) Read more...
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Awesome everyday use. I get lazy when switching out lenses.
Pros- when I want to shoot macro, fairly simple. When I want a wide lens shot- I got it. All in-one-feature. HAPPY with results (color wise- amazing, depends on technique).
Cons- not much, other than I wish I can zoom in more? I need to purchase a hardcore macro lens++. I love abstractions from zooming in super close!
Overall- NICE..
Feature
- Advanced Optical Design
- Internal Surface Coating to Reduce Ghosting and Flare
- Zoom Lock Mechanism
- Di-II Series Design
Read more...
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Feature
- Ultra wide-angle 14mm lens for added perspective
- Autofocus and manual focus switchover mechanism on focus ring
- Filter and gelatin filter holder at the rear of lens
- 7.9-inch minimum focus distance
- Mount compatible with Nikon AF-D SLR cameras
Overview
The optical system of the new SP AF14mm F/2.8 Aspherical (IF) lens, composed of 14 elements in 12 groups, includes two Hybrid Aspherical lens elements. These large Hybrid Aspheric elements efficiently compensate for aberrations thus achieving flat-field image depiction from corner to corner. With a fast F/2.8 aperture and a sophisticated optical system, photographers can create dynamic photographs that take full advantage of the rectangular characteristics of the lens.
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Product Information and Prices Stored: Jan 27, 2010 04:30:10
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Let me put the light gathering abilities of the Sigma 24mm F/1.8 lens in perspective.
The Olympus 14-42mm f3.5-5.6 kit lens, at wide open aperture and set to a 24mm focal length, is an f/4.7 lens. Ouch. With the kit lens wide open and set to 24mm focal length, I need 1600 ISO to get a tripod shot of my kitchen at around 1/50th of a second. With the Sigma, I get the same shutter speed with the camera set to 200 ISO. At 1600 ISO, the Sigma shoots the same image at 1/400th of a second. Read more...
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Feature
- Built in motor for use on the new Nikon Cameras
Overview
This Tamron Twin Zoom Kit 3 consists of two high performance lenses, a AF 28-80 and a AF 70-300mm Di lenses. Both lenses feature built in motors to produce fast accurate focusing with the latest Nikon cameras. The 28-80 lens covers wide angle to slight telephoto while the 70-300 reaches out to capture distant subjects. The 70-300 also delivers amazingly close macro shots. This is the perfect combination to cover your every photographic need.
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Product Information and Prices Stored: Dec 17, 2009 08:45:11
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