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A very bright star and very dark sky are required to produce highly contrasted spikes that are clearly visible. The diffraction effect is similar to producing sunstar patterns in landscape photography with ordinary camera lenses, where the mechanical iris of the lens is adjusted to a small polygonal shape with sharp corners.
The Sigma 70-300mm F4-5.6 APO DG Macro lens is a consumer-level, telephoto zoom lens made by Sigma Corporation. [1] Different versions of this lens are produced that work with cameras from Canon, Nikon, Pentax, Konica Minolta, Sony and Sigma. Additionally, Olympus' 70–300 f/4–5.6 lens for Four-Thirds has the same optical design and ...
An apochromat, or apochromatic lens (apo), is a photographic or other lens that has better correction of chromatic and spherical aberration than the much more common achromat lenses. The prefix apo- comes from the Greek preposition ἀπό- , meaning free from or away from.
We pick the best lenses for astrophotography fans shooting a starry night sky, to suit a range of cameras and budgets The best lenses for astrophotography in 2022: fast ultra-wide lenses for the ...
Sony A 70-200mm f/2.8 G SSM II. Originally developed and produced by Minolta as AF Apo Tele Zoom 70-200mm f / 2.8 G (D) SSM, then marketed by Sony as 70-200mm f / 2.8 G SSM (SAL-70200G) and updated as 70-200mm f / 2.8 G SSM II (SAL-70200G2), this lens is a professional full-frame lens compatible with cameras using the Minolta, Konica Minolta and Sony A-mount.
In North America, Minolta marketed the camera and lenses with the Maxxum branding. Until the mid 1990s, A-mount lenses for the North American market were engraved as Maxxum AF; the rest of the world were branded as AF lenses, including the regions using the Dynax and α branding for the cameras.
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