Teleconverter effective aperture

Meticulous craftsmanship is applied to every detail. The new teleconverters feature a metal lens barrel and share this same design concept. Specifications, appearance, functionality, etc. Catalogs Find a Dealer Photo Gallery. These accessories make it easy to expand the versatility of the attached lens. Increases maximum focal length. Easy to extend the zoom range.

Nikon even makes a mid-size TCE converter with 1. Check the Nikon teleconverter compatibility table for more information. Magnification: 2x Aperture reduction: 2 stops Construction: 7 elements in 5 groups Size: 66x48mm Weight: g. Nevertheless, Nikon does make two Z teleconverters, albeit only for a specific Nikkor Z lens.

Magnification: 2x Aperture reduction: 2 stops Construction: 8 elements in 5 groups Size: 72x Olympus follows the pattern of the other makers, offering its own 1. Zuiko telephoto lenses. Given the 2x crop factor already inherent in the MFT format, this can produce some extremely large effective magnifications.

Note that the Olympus M. Compatibility: Olympus M. Magnification: 2x Aperture reduction: 2 stops Construction: 9 elements in 4 groups Size: Panasonic now makes two distinct camera ranges, and while the brand is the same, there's no crossover in the lens mounts.

Panasonic's Lumix G cameras have two teleconverters of their own — they can't use the Lumix S teleconverters or lenses at all. Magnification: 2x Aperture reduction: 2 stops Construction: 6 elements in 4 groups Size: 58mm wide length not quoted Weight: not quoted. Considering this is the newest full frame mirrorless lens mount of all, Panasonic has done well to push out two Lumix S teleconverters — and the combined might of the L-mount Alliance pays dividends here as Sigma has produced two of its own.

Magnification: 2x Aperture reduction: 2 stops Construction: 8 elements in 4 groups Size: Compatibility: Sigma mm F Magnification: 2x Aperture reduction: 2 stops Construction: 7 elements in 4 groups Size: We're used to Pentax being pretty quiet these days, but the good news for Pentax sport and wildlife fans is that there is a Pentax 1.

Compatibility: Pentax quotes broad compatibility across its lens range, though not with certain shorter focal length primes and with some AF limitations on other lenses. A Teleconverter is not a separate lens in itself, but an additional accessory for the lens, which must be installed between the camera body and the existing lens to increase the focal length of the lens. Teleconverters have different multiples, 2X generation plus table increases the focal length of the lens by 2 times.

A mm lens with a 2x teleconverter can produce the same viewing angle as a mm lens, and it is cheaper than buying a true mm telephoto lens, and it is also more convenient to carry. Of course, there are gains and losses, because the structure of the teleconverter is composed of multiple groups of lenses, like an ordinary lenses, the quality of the image will be reduced after installation.

In addition, the focus speed of the lens will be reduced, and the maximum effective aperture value of the lens will be reduced. For example, 1. Teleconverters also have a distinction between original and non-original lenses. Of course, the quality of the original will be better, but the relative price will be higher, and most of the original teleconverter cannot be installed on non-original lenses.

Also pay attention to the lens models supported by the teleconverter when purchasing, because not all lenses can be equipped with a teleconverter. Therefore, it is necessary to read the specifications of the lens and the teleconverter. In addition, general teleconverters are divided into 1. Many people just seek higher multiples, and ignore their needs.

For example, if you do not need to use a mm focal length, you should not buy a 2x teleconverter for a mm lens.