Reviews and Problems with Tamron AF18-250mm F/3.5-6.3 Di II LD
Showing 1-10 of 12
23 July 2008
Conclusion: I was actually quite surprised by the performance of this lens. I didn't really expect a 13.9x zoom to be very good, and indeed it does have some limitations, but it did better than I expected, especially at the wide end of the range. The consequence of squeezing such a wide optical range into such a small physical package is that some optical compromises must be made. The lens isn't fast at the long end. It's f6.3 from 200mm to 250mm.
Excerpt: Not so long ago the more dedicated photographer/hobbyist who wanted to be ready for any picture taking opportunity carried around a big bag filled with several lenses of various focal length lenses. When I started out in the hobby I carried a 28mm fixed focal length wide angle, a 35-70 for the slight wide angle to slight telephoto photos, a 50mm f1.4 standard lens, a 80-200 f4 telephoto zoom and a 2x teleconverter to turn the 80-200 into a 160-400mm zoom.
Excerpt: While you were out, the digital-only superzoom got more super. Tamron, originator of the superzoom lens more than a decade ago, ups the ante with its new 18-250mm f/3.5-6.3 optic -- boasting the industry's broadest zoom range, at nearly 14X (13.9X). A 28-388mm equivalent, it adds 50mm to the tele end and does so at no cost of weight, dimension, or optical performance over Tamron's 18-200mm f/3.5-6.3 lens (which remains in Tamron's catalog).
Conclusion: It’s hard to write such an opinion but I must admit I haven’t tested a similarly weak lens for a very long time. Usually in the summary I try to include something positive about the tested devices – here it is really difficult because the Tamron 18-250 mm looks bad from almost every angle. You can say something good only about its 18-50 mm performance, which is like that of stabilized Canon and Nikon kit lenses.
Cons: very weak picture quality at longer focal lengths both in the center and on the frame edge., dreadful macro mode performance,, noticeable vignetting at the shortest focal length,, the lack of stabilization and poor aperture limits the use of the lens to good conditions only or forces to use high ISO values,, autofocus audible and not very accurate,, distortion significantly pronounced at wideangle,, noticeable astigmatism,, significant chromatic aberration at both end...
Excerpt: The star attraction on the Tamron 18-250mm f/3.5-6.3 Di ll LD (IF) Macro is the impressive focal range. The massive 18-250mm range makes this the world's only 13.9x zoom lens (based on Tamron's research into lenses for DSLRs) designed for DSLRs with APS-C sized sensors. Once mounted on your camera, the 18-250mm will give you an effective focal length of 27-375mm (1.5x) or 29-400mm (1.6x), which is pretty impressive in anyone's book.
Tamron AF 18-250mm f/3.5-6.3 Di II LD Aspherical [IF] macro (Nikon) - Review / Lab Test Report
30 September 2007
Conclusion: Early user comments already suggested that new Tamron AF 18-250mm f/3.5-6.3 Di II LD Aspherical [IF] macro does not only offer a longer range but also a higher quality over the old Tamron AF 18-200mm XR and the lab results confirm these impressions. The results may not touch the sky but the new AF 18-250mm delivers a very solid performance for most of the range. Unsurprisingly the weak spot is at 250mm @ f/6.3 - stopping down to f/8 is a good idea here.
Tamron AF 18-250mm f/3.5-6.3 DiII LD Asp (IF) Macro
13 August 2007
Excerpt: An 18-250mm is an incredible range, taking the SLR superzoom, into new territory. This extremely versatile range will give you coverage for almost all subjects apart from the real extremes. But how does it perform? We are about to find out.
Pros: Great focal range, Light weight, Reasonable optical performance
Cons: Distortion throughout the focal range, More expensive than some
Tamron AF 18-250mm F/3.5-6.3 Di II LD Aspherical (IF) Macro Lens
1 March 2007
Summary: An affordable lens with good performance for photographers seeking a one-lens-for-all-purposes solution.With a zoom ratio of 13.9x, Tamron's new AF18-250mm F/3.5-6.3 Di-II LD Aspherical (IF) Macro lens provides a good single-lens option for DSLR photographers whose cameras have APS-C sized imagers.