Do you have to have multiple filter questions?

Filter questions can get very complex. Sometimes, you have to have multiple filter questions in order to direct your respondents to the correct subsequent questions. There are a few conventions you should keep in mind when using filters: Try to avoid having more than three levels (two jumps) for any question.

What’s the difference between calculate and filter filter data?

To see the difference between the way in which CALCULATE and FILTER filter data, consider this example: The first measure applies the filter context (so it only calculates sales for the city in question), and applies an additional constraint that the city should be New York:

What should I do after installing a new oil filter?

After the new filter is installed, run the engine for a couple minutes, then shut it off and allow several minutes for the oil to settle in the sump. Check the oil level and top-off as needed to make-up for the oil removed with the old filter. Should I pre-fill the filter before installing?

Can a horizontally oriented oil filter be filled with oil?

Horizontally oriented filters can pose a problem, but even they can be pre-filled with some oil. I typically pour a little oil into the filter and tip it sideways and check the oil inside. If there’s room for more before it begins to spill out of the opening in the filter, I add a little more oil before installing the filter.

When to use I attach, I am attaching or I have attached?

In formal letter writing we used to write sentences like “I attach a copy of the document in question”, “I am attaching a copy of the bill for your kind reference”, “please find attached a list of the items ordered for”, etc; but for some reason, “I have attached” was rarely used.

What are the different sizes of filter thread?

What’s more, there’s a good chance the filter thread diameter sizes of one or more of your lenses differ from the other lenses. For example, two lenses might have 58mm thread sizes, while the third lens might have a 49mm, 62mm, 67mm, or 77mm thread size.

Do you need a step up ring for a filter?

At first glance, purchasing a step-up ring is a simple, straightforward transaction―all you need is a metal ring that enables you to use a filter with a wider-diameter thread size than the lens on which you want to mount it. What’s not so clear-cut is why there are so many choices for a lens accessory that, on the surface, is so simple and basic.

Why do lens filters have side knurled edges?

One helpful feature that select manufacturers incorporate into their rings and filters is side-knurled edges that make it easier to grip the rings or filters when attaching or removing them from the lens threads.