How to use In-focus in a sentence
One of the most essential points in a good micrometer is that all the webs shall be so nearly in the same plane as to be well in focus together under the highest powers used, and at the same time absolutely free from " fiddling."
The result is that no trace of " fiddling " exists, and the movable and fixed webs come sharply together in focus with the highest powers.
In order that a large part of the field of view may be in focus at once, it is desirable that the locus of the focused spectrum should be nearly perpendicular to the line of vision.
Diffraction when the Source of Light is not seen in Focus.
Savary dwells on the difficulty both of procuring lenses sufficiently equal in focus and of accurately adjusting and centring them.Advertisement
The chief objections to the method are that, as one star is in the axis of the telescope and the other displaced from it, the images are not both in focus of the eye-piece,3 and the rays from the two stars do not make the same angle with the optical axis of each segment.
The second method is free from the objection of non-coincidence in focus of the images, but is more troublesome in practice from the necessity for frequent readjustment of the position of the eye-piece.
Thus, in measuring the largest as well as the smallest angles, the images of both stars would be equally symmetrical and equally well in focus.
There is a collar, clamped by the screw at S, which is so adjusted that the eye-piece is in focus when pushed home, in its adapter, to this collar.
The position of the magnet is observed by means of a small telescope, and since the scale is at the principal focus of the lens, the scale will be in focus when the telescope is adjusted to observe a distant object.Advertisement
For it is easy to see that if, by means of lenses of rock-salt or mirrors, we focused all or nearly all the rays from a small surface on to another surface of equal area, this would not raise the temperature of the second surface above that of the first; and we could not obtain a greater concentration of rays from a large heated surface, since we could not have all parts of the surface simultaneously in focus.
In order to reach the goal the learning milieu of the pre-school teaching is placed in focus.
This has the effect of forming the image of the latter farther from the observer's eye, and so it becomes necessary to turn the handle of the rack-pinion V in such a way as to move the prisms P3 and P4 nearer to P2 till the lines of the stellar spectrograph are again sharply in focus.
Many of these are vocational in focus and include contact with outside organizations and professionals working in the industry.
If you are using a 35mm camera, you are going to need one with a fast shutter speed and a high quality auto focus system so your shots stay in focus.Advertisement
For example, if you use a slow shutter speed for action photos you have a better shot of capturing an image where your subject is in focus and the background is blurry, which makes for a much more interesting picture.
Doing so will help keep the child in focus while blurring the background.
Getting yourself in focus can be a tricky prospect for a self portrait.
With a shift in focus from career to motherhood, Jolie decided that some dedicated family time was in order.
There may be unequal amounts of nearsightedness, farsightedness, or astigmatism, so that one eye will be in focus while the other will not.Advertisement
If you're giving a personalized Christmas gift that includes a photo, choose an image that is in focus and meets the technical specifications required by the manufacturer.
A shift in focus may result in increased business for company without the need for extensive increased expenditures.
Make sure the photos are in focus and that the nominee can be clearly seen and identified.