Air Max 180 50mm F14 Versus 50mm F nike air max 20

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Even with image-stabilization (few, if any, 50mm lenses are stabilized) [link widoczny dla zalogowanych], fast-moving subjects will be less blurred at higher shutter speeds.
Available-Light Photography
Choosing the right lens, depends upon understanding the planned use of the lens.
It too matters if the approximation is made at maximum aperture (F1.4 and F1. Cool

, alternatively stopped down (F2 and F2, F2.8 and F2.8
The F1.8 is universally regarded for having lower distortion - straight lines will emerge straight. The F1.4 will have slightly more perversion.
50mm lenses are constantly accustom by highest hole to dart the background out of focus, while keeping the subject sharply in converge. This is principally telling for portraits of human.
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Full Frame Lenses and Cropped Sensor DSLRs
Full Frame Versus Cropped Digital SLR Cameras
Original vs Third-party Digital Camera Lenses
Image Quality
Sigma F1.4 EX DG HSMNikon F1.4 AF-S G
For this applying, there is tiny difference between the 2 lenses.
Taken always together, any differences are minor, noticeable only in direct side by side comparisons of amplified images.
focus precision, can be sly even with autofocus (need to await for focus lock ahead releasing shutter)supporting the camera or steady hand-holdingpanning to reduce subject motion-blurchoice of aperture for depth of fieldalternative of high-ISO ruckus versus curtain speed trade-offuse of lens hood to dwindle flareNew Generation 50mm Lenses
Whether the F1.4 or the F1.8 has the better "bokeh" or pleasant out-of-focus images, will rely ashore the manufacturer (Sigma, Nikon, Canon, Sony, Pentax, Olympus etc.) and individual favorite.
Different reviewers rate the lenses differently. Some say the F1.8 is sharper and with higher compare (this is a good entity), others differ. This may be deserving to differences between manufacturers - one may have better F1.4 lenses [link widoczny dla zalogowanych], another may have better F1.8 lenses.
Both F1.4 and F1.8 lenses are excellent increases to any photographer's toolkit.
Anyone uncertain as to which to obtain can start with an F1.8, and will probably be merry to mallet with it. Available-light enthusiasts will choose an
Resources
Nikon and Canon Digital SLR Lenses. Overview of large-aperture prime lenses for DSLR Cameras.Canon EF 50mm F1.4 vs F1
Photographer and critic Ken Rockwell says that the elementary Planar / Gaussian optical chart of new 50mm lenses namely decades old.
The photographer's technique will likely be the restricting element [link widoczny dla zalogowanych], not the lens. This applies in such districts as:
50mm lenses are often chosen for of the sharp images they tin produce, considered better than zooms.
F1.8 lenses are thought ration (yet still nice) lenses, no value the spend of a redesign. They ambition possible continue to be attempted only in classic Planar / Gaussian editions.
Blurred Out Background (Bokeh)
50mm F1.4 Compared With F1.8
50mm F1.4 lenses using redesigned optics for better image quality, have recently been introduced. Some even use expensive aspherical ingredients. Photographers seeing for the best image quality ought consider
The F1.4 lens is 2/3 stops brighter (66 percent brighter). It is periodically mistakenly supposed to be 1/2 stops brighter than the F1.8. The 1/2 stop is actually at
2/3 stops can be fussy when shooting in low light and without flash. It is likely to necessitate slow 1/15 or 1/30 second shutter speeds at ISO 1600 and F1.4. Which is approximately the limit for hand holding the camera without a tripod.