Table of Contents
What is ED glass elements?
ED stands for “extra-low dispersion,” which refers to the composition and optical properties of the glass used for the lenses. ED glass is specially formulated and contains rare-earth compounds that greatly reduce a visual defect called chromatic aberration.
What is an LD lens?
This hybrid lens element reduces aspherical and chromatic aberrations. LD—Low dispersion. This lens is built to remove chromatic aberrations.
Do you need ED glass in binoculars?
The use of ED glass greatly reduces a visual defect known as chromatic aberration. This is essentially the colour fringing that appears when looking through a pair of binoculars which can distort the true image. Binoculars which use ED glass are able to stop this from happening.
Which is better AF S or AF-P?
AF-P lenses use a “Pulse” motor or “Stepping” autofocus motor and are even quieter and smoother to autofocus than an AF-S lens, making these lenses ideal when shooting video with a DSLR. The DSLR camera bodies that do feature a focus motor can utilize AF and AF-S lenses.
What is DX and FX?
In digital SLR cameras, the camera’s format refers to the size of its image sensor. Nikon makes a DX-format sensor and an FX-format sensor. The DX-format is the smaller sensor at 24x16mm; the larger full frame FX-format sensor measures 36x24mm which is approximately the same size as 35mm film.
What is an ED element?
You will know the low-dispersion lens element by various labels, such as ED, ELD, SLD, UD and other acronyms. It is a low-dispersion glass lens element. ED and ELD stand for Extra Low Dispersion, and S stands for Super or Special.
What is the difference between ED and HD glass?
ED glass means Extra-low dispersion glass, and is used to control chromatic aberration, which is when you see those colored fringes around things when you view them in high contrast situations. ED glass can improve images in certain situations. HD is simply a marketing ploy, meaning high definition, like as in HDTV.
What does DX stand for on Nikon lens?
DX – If a lens says “DX”, it means that it is specifically designed for APS-C DX camera bodies (see sensor size comparison below) such as Nikon D3000/D5000/D90/D300s. DX lenses do work on FX bodies (they will physically mount), but will operate at only half the resolution.