As you can see from the above, an f stop of f/1.4 is really wide. It is letting a lot more light into the lens and ultimately onto the sensor than, say, f/8. Thus: The lower the f stop number, the wider, or bigger, the aperture. So, if someone tells you to âstop downâ, they are referring to decreasing the size of the aperture, which is achieved by increasing the f stop number.
A traditional method of providing temporary immunity for a person who is suspected of being infected (usually be an animal bite) with rabies is classified as passive artificial immunity Antibodies secreted in breast milk
Section 30.90 Recognized Immunity Period of Animal Rabies Vaccines. (c) .......Thus, when an animal rabies vaccine recognized as conveying a 3-year immunity is administered to a dog which is at least 1 year of age at the time of vaccination, that vaccination shall be recognized for a period of 3 years.