Currently viewing the tag: "F/1.4"
One of my fast lens the Tamron SP 28-75mm F/2.8
Not to be too technical here, fast glass also known as fast lens are lenses that have a larger maximum aperture or lower f-stops, like F/2.8, F/1.8 and F/1.4. It does not refer to the auto focus system of the lens, so even if the lens is equipped with the latest autofocus mechanism such the USM or HSM (sigma) and can acquire focus really fast, it’s not necessarily a fast lens. So if you happen to notice a F/2.8 on the specification or description of the lens then it is a fast lens. A lens with a minimum aperture of F/2.8 and wider are considered to fast lenses (F/2.8, F/2.0, F/1.8 F/1.4, F/1.2 with F/1.2 being the fastest and more low light capable and certainly the most expensive.).
But what exactly is it and do we really need it? Since a fast lens has a larger maximum aperture it’s aperture ring has a larger opening compare to non fast lens like the kit lens, therefore allowing more light to reach the sensor faster, and because more light was able to reach the sensor faster it then allows the photographer to use a faster shutter speed. Also, fast lenses will give us a really nice background bokeh, which are perfect for portraiture or close-up and macro.
Do we really need it? The simple answer is yes and no. Fast glass are expensive and not everyone can afford it, so yes if you can afford it, it’s certainly good know that you have one anytime you need it. Fast glass is essential especially when shooting in low light to capture important scene or to freeze the action. On the other hand with the advancement of technology, camera bodies are now getting powerful to the extent that you can get away by increasing your ISO even to a 1000 or even more and will still give you great images. Take for example this photo below which was taken using my EF 70-200mm F/4L IS USM lens, it’s an F/4 lens which is really isn’t enough when shooting sports especially in a stadium that lights aren’t really something to be desired. The photo was shot using the Canon EOS 60d set at ISO 1000.
So should we really go with a fast glass? What I can recommend is, just save up for a fast glass. A fast glass is always a better and will help a talented photographer capture more stunning photographs.
My Lenses:
The EF 85mm F/1.8 & EF 50mmF/1.8 are my fastest lens and the EF-s 10-22 being the slowest of them all having a variable aperture of F/3.5-4.5
From left back: EF 10-22mm F/3.5-4.5, Tamron 28-75mm F/2.8, EF 70-200mm F/4L IS USM. Front EF 50mm F/1.8 II, EF 85mm F/1.8 USM
“Samyang 35mm F/1.4 Manual Focus – Available Feb. 2011
I love this one. I think I’m going to get one, can’t wait!!!
The New Samyang 35 mm f/1.4 AS UMC lens for Canon, Four-thirds, Nikon, Pentax, Samsung NX, KM/Sony will be available for sale by February 2011.
Manufacturer’s Description:
Sophisticated optics of Samyang 35 mm F1.4 UMC has been constructed upon twelve elements arranged in ten groups. The lens comes with two lenses made of the glass with high refraction factor, which reduces its weight and dimensions. Moreover, one aspherical lens minimizes the risk of chromatic aberration. Owing to the high-quality multi-layer coatings, our lens provides high contrast and faithful color imaging. Samyang 35 mm f/1.4 AS UMC uses the system of the so called “floating” lenses allowing to preserve high image quality with minimum focusing distance.
Samyang 35 mm F1.4 AS UMC was constructed to fit most popular reflexive cameras with small sensors. 35mm focal length has universal applications. When attached to the small sensor camera, the lens will act as bright, wide-angle lens perfect for landscape and reporting shooting. The same lens mounted on the camera with APS-C sensor, will become a popular, multitask 50mm lens. In case of cameras with 3:4 system, Samyang 35 mm F1.4 AS UMC will turn into a short, bright portrait lens with 70mm focal length equivalent.
Samyang 35 mm F1.4 AS UMC has been designed with great care for the smallest details and perfect style. This applies both to optics and workmanship, which place the lens among the best photographic products worldwide.
| Technical Specifications: |
| Manufacturer | Samyang Optics |
| Model | Samyang 35 mm f/1.4 AS UMC |
| Lens style | wideangle, standard |
| Focal length | 35 mm |
| Maximum aperture | f/1,4 |
| Angle of view | 63,1 deg |
| Minimum focusing distance | ~0,3 m |
| Maximum magnification | N/A |
| Minimum aperture | f/22 |
| Number of diaphragm blades | 8 |
| Auto focus type | manual focus |
| Lens Construction | 12 elements / 10 groups / 1 aspherical lens |
| Filter diameter | 77 mm |
| Macro | N/A |
| Available mounts | Canon, Four-thirds, Nikon, Pentax, Samsung NX, KM/Sony |
| Dimensions | 111 x 83 mm |
| Weight | ~660 g (for Canon) |
| Additional information | available for sale since February 2011 |
Now available in the U.S. and sold under the Rokinon brand name, Get it now at:
Samyang is also the manufacturer of the Rokinon/Vivitar 85mm f/1.4 which I also planed to buy, except that I already have a EF 85mm F/1.8.
Rokinon Sample PhotoI have been looking at this lens for quite sometime now, and I find it really impressive. Here is a comparison between the Rokinon 85mm F/1.4 and Leica Summilux 80mm F/1.4.
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Prime lens is a lens that have fixed focal length or one focal length, a great example of a prime lens in the Canon Lens lineup is the famous and cheap Canon EF 50mm f/1.8 II
Here are some characteristics of a prime lens:
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