3 of the Best Lenses for Bird Photography as Tested by Us

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Tamron Launches the 18-300mm f/3.5-6.3 for Sony and Fujifilm

Previously revealed as a development announcement in July, Tamron has announced final details and availability for its 18-300mm f/3.5-6.3 Di III-A VC VXD for Fujifilm X-mount and Sony E-Mount.

As mentioned in the original development announcement, this lens will be Tamron's first for Fujifilm X-Mount.

Tamron touts the 18-300mm f/3.5-6.3 as the world's first 16.6x all-in-one zoom lens for APS-C. It covers the full-frame equivalent focal length range of 27mm to 450mm with a minimum object distance of 5.9-inches at the wide end along with a magnification ratio of 1:2.

The lens uses Tamron's proprietary VXD linear motor focus mechanism that allows it to achieve autofocus speed and precision that the company says stands among the best of all zoom lenses in its class. Tamron says that the performance of the autofocus is consistent throughout the zoom range and works excellently for tracking a moving subject and is ideal for animals, aircraft, railways, and other moving objects. Additionally, as a linear motor, it is not only fast, it is near silent.

Tamron claims that, as far as image quality is concerned, the 18-300mm f/3.5-6.3 is one of the best performing all-in-one zoom lenses for APS-C mirrorless cameras available. Tamron says that in order to achieve the zoom ratio of 16.6x while also ensuring that high image quality the lens features a well-balanced arrangement of elements.

Left: Fujifilm X-mount version | Right: Sony E-mount version

The lens is constructed of 19 elements in 15 groups and includes three aspherical elements and four low dispersion elements that Tamron says together effectively suppress optical aberrations. The company says that it maintains high resolving power from the center to the corners through the entire zoom range. The lens features a seven-bladed circular diaphragm and a 67mm front filter size.

Below are a set of images provided by Tamron, taken Noboru Sonehara with the lens on a Sony a6600:

Tamron will release the 18-300mm f/3.5-6.3 Di III-A VC VXD for both Sony E-mount and Fujifilm X-Mount, but at different times. The Sony E-Mount version will be available in September while the Fujifilm X-Mount version is expected to arrive on October 28. Tamron does warn that these timelines could change due to the global health crisis. Both versions of the lens will cost $699.

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Tamron Launches 18-300mm f/3.5-6.3 for Sony E-Mount APS-C Cameras

Tamron has announced that the previously-announced 18-300mm F/3.5-6.3 Di III-A VC VXD for Sony E-mount will be available this September for $699.

While the Sony E-mount version will be available in September, the Fujifilm X-mount version is still under development but is expected to also launch this fall, though no specific date was provided. When it comes to market, it will be Tamron's first Fujifilm X-mount lens.

As revealed in July when Tamron originally announced its development, the 18-300mm f/3.5-6.3 Di III-A VC VXD will cover a range of approximately 27mm to 450mm in a 35mm full-frame equivalent.

With this broad coverage, it empowers shooting in a wide variety of situations, including everyday life and travel snapshots, both wide-angle and dynamic ultra-telephoto landscape photography and macro photography.

It is the first lens for APS-C mirrorless cameras with a 16.6x zoom ratio, which covers the wide-angle through what Tamron calls the ultra-telephoto range. At the wide end, it has a minimum aperture of f/22 and at the long end it has a minimum aperture of f/40.

Optically, the lens features 19 elements in 15 groups, with three hybrid aspherical elements and four low-dispersion elements to suppress optical aberrations. Tamron says that throughout the zoom range, the lens maintains high resolving power from the center to the corners. It features seven aperture blades. Additionally, as most other Tamron lenses for mirrorless cameras, the lens features a unified 67mm filter size.

The lens utilizes Tamron's VXD linear motor focus mechanism that the company says achieves autofocus speed and precision that Tamron says stands among the best of all all-in-one zoom lenses. The company says it will perform well when tracking moving subjects in focus and is also extremely quiet, allowing it to be used in a wide range of situations.

It has a minimum focus distance of 5.9-inches at 18mm with a maximum magnification ratio of 1:2, which means it performs admirably in up-close shooting situations despite its extremely large optical range.

The Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD will be available on September 24 for $699 for Sony E-Mount, and as mentioned a Fujifilm X-Mount will also be available this fall, with a specific date to come at another time. Presumably, the lens will cost the same for the Fujifilm version.

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Tamron Developing its First Fujifilm X-Mount Lens: the 18-300mm f/3.5-6.3

Tamron has announced that it is developing its first Fujifilm X-mount lens: the all-in-one 18-300mm f/3.5-6.3 Di III-A VC VXD. The lens will also be available in Sony E-mount.

Tamron's language says that this is the first Fujifilm X-mount lens, which seems to indicate that the company plans to make additional ones in the coming years.

The forthcoming 18-300mm f/3.5-6.3 Di III-A VC VXD will cover a range of approximately 27mm to 450mm in a 35mm full-frame equivalent. Tamron says that it will be the first APS-C mirrorless zoom lens that will achieve the 16.6x zoom ratio. Designed to be versatile and capable of handling a range of environments, its autofocus drive system will use Tamron's linear focus mechanism the VXD (Voice-coil eXtreme-torque Drive) which the company says will provide "superior quietness and agile performance." The company has gone so far as to claim that its autofocus will be at the "highest level in its class."

Tamron also says that it will include special lens elements -- exactly which elements and how many of each was not disclosed -- that it claims will maintain high resolution from edge to edge as well as provide overall high image quality, "among the best of all all-in-one zoom lenses."

The lens will have a minimum focus distance of 5.9 inches at the wide end and a maximum magnification ratio of 1:2, which Tamron says allows it to perform "astonishingly well" in its category when shooting subjects up close. As expected, the lens will also be equipped with Tamron's Vibration Compensation (VC) mechanism that will allow it to stabilize photography even at its longest end. Tamron did not specify if it will work in tandem with Fujifilm cameras that also have in-body image stabilization (IBIS). The front filter size will be 67mm, which Tamron says is the same as most of its other mirrorless lenses.

Left: Fujifilm X-mount version | Right: Sony E-mount version

While Tamron provided no other concrete details, it did say that it would be "comfortably compact" and be moisture-resistant, have a zoom lock switch, and include a fluorine coating on the front element.

Tamron did not provide any information on how much the lens is expected to retail for but it did say that the 18-300mm f/3.5-6.3 Di III-A VC VXD lens would come to marke in the fall of 2021.

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