A 70-300mm lens has a zoom ratio of 4.28. It is a 70-300mm no matter what camera you mount it on.
Here is an example: For a 300mm lens, divide 300 by 50 to get 6x magnification. Or divide 300 by 100 to get 3, then multiply 3 x 2 to get 6x.
Product Description. Are you looking for a camera lens that allows you a huge zoom range? Then the Nikon AF 70-300 mm telephoto zoom lens is sure to make an impression on you. This portable model apart from providing you a versatile focal length range, also delivers crisp and clear images.
Featuring a versatile telephoto range, the EF 75-300mm f/4-5.6 III from Canon is a 4x zoom characterized by its relatively lightweight design and compact form factor.
A 70-300 mm lens is a medium telephoto lens often employed for taking photos of wildlife, sporting events, and astronomical subjects such as the moon, planets, and stars. It is also recommended for travel photography, street photography, and other candid occasions.
The 70-300mm is ideal for wildlife, nature, and sports photographers who're looking for a budget zoom lens that can help improve their photography level. Since it is versatile, the Nikon 70-300mm functions well in different environments. It is a real swiss army knife for any level of photography.
A 300mm lens is enough for wildlife and bird photography. With a lens of this focal length, you'll be able to capture detail from a distance, even when focusing on small subjects like songbirds. Look for a lens with a fast speed to make sure that you can capture a moving subject without blur.
The 50x optical zoom alone is the focal length equivalent of 24-1,200mm on a full frame body.
Ofcourse, a 300mm on a 1.6 crop sensor equals 480mm... Have an awesome one!
The Canon EF 75-300mm f/4.0-5.6 III is a compact and lightweight 4x telephoto zoom lens ideal for shooting sports, portraits, and wildlife. This lens is compatible with full-frame and APS-C format Canon DSLRs.
It's a great lens for wildlife, especially on DX (crop sensor) Nikon bodies where it yields an equivalent focal length of 105-450mm. It is light and relatively small, which is helpful if you are panning with flying birds, or otherwise needing to hold it up for long stretches.
Focal lengths such as 300mm or 400mm would be a large, heavy telephoto lens for taking photos of birds or airplanes. Just remember - a small number is wide, a large number is telephoto. Two numbers together, e.g. 35-105mm, means that the lens zooms from one focal length to another.
This 70-300mm VR is the very best modern tele zoom lens to get if you prefer a dedicated tele zoom over a do-it-all zoom and want light weight and moderate price. It's a nice semi-plasticy amateur lens with a metal mount. If you need tougher, spend twice as much on the fully professional 80-200mm f/2.8 AF-D for $1,100.
With a 60X optical zoom (20-1,200mm), the lens in the FZ70 is the widest and longest zoom in its class*.
Now, at MWC 2019, it has revealed that the phone will be officially out in the spring. Having a 10x zoom on a camera phone is no mean feat: it means the device will offer a zoom ranging from 15.9mm to 159mm (the equivalent of).
At 300mm the lens will have the equivalence of a 450mm lens on a 35mm film camera or Nikon FX (Full Frame) digital camera. Many P&S cameras will say they have a 8x or 12x zoom, that just means that the longest focal length is 8x or 12x longer than the widest focal length.
The bottom line – on a crop frame camera a 70-300mm zoom (Canon, Nikon, Sony) will get you pretty good coverage from 15 yards to 56 yards away, the 'sweet spot' for outdoor sports.
On a camera with a smaller sensor, the birder gets to enjoy all of the benefits of the crop factor. With APS-C sized sensors, the lens focal length is effectively multiplied by 1.5x (1.6x with Canon). Therefore, a 300mm f/4 lens on an APS-C camera gives you the full-frame equivalent of a 450mm f/4 lens.
The 35x optical zoom lets you shoot up close with blur-free precision, and zoom out for wide-angled shots. Every detail sharp and clear. Nothing escapes the notice of a 20.1 MP sensor. Take detailed pictures with the high resolution 20.1MP Super HAD CCD sensor.
Its 40x optical lens means it can capture from an equivalent 24mm wide-angle (wide enough for shots of groups, say, or landscapes), through to a massive 960mm equivalent (long enough to pick out far-away subjects and make them appear close-up within the frame).
30x optical zoom. Extend your reach to the max with this fast 27 mm – 810 mm f/2.8-5.6 Carl Zeiss Vario Sonnar T* lens. The 30x magnification range is nothing short of incredible, allowing you to zoom up to distant subjects while still maintaining the clarity that only optical zoom can provide.
Sigma 70-300mm f/4-5.6 DG Macro Overview
Capable of macro photography, this lens has a 1:2 maximum close-up magnification at the 300 mm focal length. It is the ideal high performance lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range.
The best focal length depends on your subjects and how close you can get to them. It's hard to get close to most wild subjects, so wildlife photographers generally use long lenses: at least 300mm for an APS-C DSLR, or 400mm for a full-frame DSLR or 35mm SLR.
EF 70–300mm f/4.5–5.6 DO IS USM
The lens contains Image Stabilization and a ring USM, which allows full-time manual focusing of the lens while using the camera in single shot mode.