For taking the measurements, you should stand upright with a relaxed posture with the arms hanging free at the sides. The measurements are taken on top of underwear (panties and a light-weight camisole or a bra) close to the body, yet not too tight.

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Sector Optics is a new brand offering unique solution in optical and electro-optical devices. Product lines include new ID™ Internal Display systems, thermal imagers and many other optical commercial products.

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We use the European (metric) system of measurement in our pattern design. The sizes of children’s clothes are based on the child’s height (cm). Women’s and men’s clothes are based on the German sizing system. You can study the size charts and instructions for taking measurements by size groups.

When observing objects, they are unresolved when they are so far enough away such that they look like featureless dots. When moved closer and you can tell that they’re more than just a dot they are partially resolved. They are highly resolved when distinct features can be noted.

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4. Outside leg length Measure the distance from the waistline to the floor (measure from the lower edge of the waist tape).

Height Stand up with your back and heels against a wall and let your assistant make a mark on the wall at the top of your head, using a straight angle (e.g. a book). Your height is the distance measured from the floor to the marking.

6. Arm length Measure from the tip of the shoulder to the wrist, with the tape measure running over the elbow. Take the measurement with the arm slightly bent.

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It is hard to take your own measurements and therefore you need a friend to assist you. It is advisable to take the measurements in front of a mirror so that you can also see the position of the tape measure at the back. You will need a tape measure, a pen and paper.

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Consider observing a car at night driving towards you from 10 miles away. Until it’s close enough the headlights will seem like one light instead of two. While far and it seems like it has only one headlight it is “unresolved.” When you can differentiate between the two headlights it is “resolved.”

Place one tape exactly hori­zontally round your natural waistline and secure it firmly with a safety pin. Place the other tape round your neck so that you can easily slide your finger ­between the tape and your neck. The tape should be positioned at the base of your neck.

1. The ability of an imaging system to resolve fine detail in the object that is being imaged/viewed, or the amount of detail and image holds.

This is often understood by looking at the US Air Force’s 1951 resolution test chart. It consistes of 9 groups with 6 elements that are oriented in a “spiral.” When set up properly and looked at through an optical device, there will be a limit to which set of lines can be differentiated. Each set of lines corresponds to a particular optical resolution and the finer ones mean a higher resolution.

7. Back width With the arms hanging relaxed at your sides, take the measurement across the shoulder blades between the points where your arms meet the body, placing the tape measure 10–12 cm below the base of the neck.

3. When denoted by an angle, it is traditionally thought of as the point where two light sources can be distinctly told apart.

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The measurements in the size chart are taken on the body. The patterns include the necessary allow­ances for ease of movement. The patterns in the magazine have been designed for a person with a height of 164–172 cm. If you are considerably shorter or taller, make the necessary alterations to the patterns before cutting the garment pieces out. Points to be checked are the center-­back length of a blouse or top as well as the sleeve and leg length.

Adults’ sizes are chosen either according to the bust/chest measurement (e.g. blouses, jackets, coats) or the hip measurement (pants, skirts). When choosing the pattern size for a dress, a coat or a longer jacket, take note of both the bust and hip measurement.

You will also need two firm tapes, one round the waist and the other round the neck. You can make the tapes from a 4 cm wide strip of cotton fabric by folding and pressing it in three and by cutting it into required lengths.

1. Bust Measure horizontally round the body with the tape measure running under the arms across the full bustline and across the shoulder blades.