Uncategorized
- World’s smallest and lightest 28-300mm lens (June 2004)
- 28-300mm focal length
- f/3.5-6.3 maximum aperture
- XR (Extra Refractive Index) glass
- Multipurpose lens for Pentax 35mm film and digital SLRs; macro to telephoto ranges
Product DescriptionMaintaining the high performance of the previous model, Tamron’s new 28-300mm zoom lens now features “Di” design, making it the ideal lens for use with both digital and film cameras. The “Di” design is achieved by applying a new optical design to its coated surfaces, and by further enhancing Tamron’s already stringent quality control system. Whether you shoot film or digital, the lens provides high image quality for both platforms. When used with APS-C size digital . . . More >>
Popularity: unranked [?]
I have this lens and I have a focus problem on the top end. When at the 300mm the system shows that it is focused and the K20 give ok to shoot, but when I down load pictures they are not sharp or clear. here is a focus problem.
Rating: 4 / 5
Once again, another cheap plastic lens from Tamron, including the PLASTIC LENS MOUNT! Save your money and buy the 18-250mm lens for another 100 bucks. You lose a whopping 50mm at the long end, but the optics and build are superior plus a gain on the short end.
If you don’t want to spend that much then consider the Sigma 28-300mm, unfortunatly the optics are a bit less than the Tamron 28-300mm, but the build quality is definitely superior.
Rating: 3 / 5
This is a good all purpose lens. The 28 – 300 mm zoom equates to approximately 42 – 450 mm on most DSLR’s. There are almost always tradeoffs in anything you buy and this is very true with lenses. This lens provides a wide zoom range, has a minimum length of 3. 3″ and weighs about 1 lb. It is not very fast with a maximum aperture of F 3. 5 at 28 mm and 6. 3 at 300mm but when used with a Pentax K10D the automatic focus works well under most lighting conditions. I use it primarily for nature photography. It has produced good images in most situations. Although it focuses to 1. 6 feet throughout the zoom range, to provide a 2. 9 magnification ratio at 300 mm, the short depth of field results in disappointing close-up shots. Overall I am pleased with the Tamron AF28-300 and would recommend it to anyone that wants one lightweight lens to cover a wide zoom range.
Rating: 4 / 5