The phrase "altering focus" is correct and usable in written English.
It can be used when discussing changes in perspective, attention, or concentration on a particular subject or task.
Example: "In order to improve our productivity, we need to start altering focus from minor details to the bigger picture."
Alternatives: "shifting focus" or "changing perspective".
Mr. Cohen's altered focus is being felt at the office.
Since then, the facility has altered focus, putting more emphasis on weapons-related work and acting as a user facility for outside scientists.
It works much like the human eye, using electricity to alter the shape of two drops of liquid, to bend light, alter focus, and produce a miniature, yet powerful (multi-megapixel) lens for a variety of applications.
And to some extent, that's the battleground for next-gen mobile technology; Apple has its M7 motion coprocessor, for instance, and Qualcomm is building advanced camera processing tech into its SoCs that will allow users to alter focus on pictures after the shot and do much more besides.
Most altered foci do not develop further, but a small fraction progress to formation of neoplasms.
Without AhR inhibition of intrafocal apoptosis, the phenotypically altered foci might likely undergo apoptosis, e.g. the reversibility of clonally expanded foci upon discontinuation of the tumor promoter.
Intercellular transfer of growth and/or differentiation regulating factors could be involved in suppressing the growth of initiated cells in the altered foci.
During chemical carcinogenesis in the liver, a population of abnormal cells in lesions referred to as altered foci precedes the appearance of neoplasms.
Although two ER juveniles developed altered foci, no hepatocellular adenomas or carcinomas were observed, suggesting that ER larvae are resistant to the carcinogenic effects of BaP.
Lesions were classified as foci of cellular alteration smaller than one liver lobule (altered hepatic foci; AHF), foci of cellular alteration larger than one liver lobule (large foci of cellular alteration; LFCA), adenomas (ADs), or carcinomas (CAs).
This paper presents the design and development of such a high precision programmable focussing mechanism (PFM), which is used to move a lens relative to another fixed lens, thus altering the focus of the optical system.
