Lower-end camera phones use only digital zoom and do not have optical zoom, while many high-end phones have additional rear cameras, including a fixed telephoto lens, which allows to simulate optical zoom.
Full-size cameras usually have an optical zoom lens, but some automatically apply digital zoom after the optical focal length has been completed for as long as possible. Commercial cameras do not usually offer digital zoom.
What is Delta Plus Variant?
World Health Organisation, last month, tagged B.1.617.2 strain as the ‘Delta’ variant of SARS-CoV-2. Now, the “Delta” variant has further mutated to form the ‘Delta plus’ or ‘AY.1’ variant. Well, according to the reports, the initial data suggests that the Delta plus variant shows signs of resistance against the monoclonal antibody cocktail treatment. This treatment for Covid-19 was recently authorised by the Central Drugs Standard Control Organisation (CDSCO).
Recently, a scientist specialising in genomic sequencing, Bani Jolly said on Twitter, “A small number of sequences of Delta (B.1.617.2) having spike mutation K417N can be found on GISAID. As of today, these sequences have been identified in genomes from 10 countries.”
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