Fountain Pen 101: Basic Nib Characteristics
In general, there are three major styles of nibs: open, conical, and hooded.
When the average person thinks of a fountain pen, he's most likely to imagine the open nib:
It's perfectly natural too, the open nib is perhaps the most well recognized and widely used type of fountain pen nib. It allows the nib to exhibit artistic styles that the other two types often limit. Because of the open design, the shoulders of the nib flare out, allowing for greater support of the tines.
Another less common style is the conical nib:
Most often used by Sheaffer fountain pens, the conical nib lacks the flaring shoulders of the open nib. Although the pen lacks the support of the shoulders, the nib is literally a cone, extending around the feed. This gives the tines the support they need sans shoulders.
Lastly, there is the hooded nib:
This is just one kind of hooded nib. The Parker 51, as shown above has a nearly completely hooded nib, whereas some pens only have semi-hooded nibs. Regardless of the hooding, the hooded nib allows for the least amount of artistic design on the nib, and tends to be the least flexible nibs, due to a lack of space for the tines to move.
Although each style may appeal to a different person, the writing experience is not much different. What really matters isn't the nib shape, but the shape at the end of the tines.
All three of the pens above share a common tipping shape: the round nib. This nib is the most common style of nib, having just a ball of tipping material at the end of the tines. This allows for smooth writing, with little to no line variation in most cases.
The other style of nib is the italic or stub nib.
Rather than a ball of tipping material, the stub nib has a flat line across the top. This changes the writing characteristics of the nib: when writing parallel with the nib, the lines are thin, when writing perpendicular to the nib, the lines are thick. Many styles of calligraphy, such as Gothic, use an italic nib.
Besides tipping shape, there is one last thing that affects how a nib writes, and it is probably the most desirable of all traits: flex.
Although it may seem like any other nib, notice that 1) the nib lacks a breather hole and 2) the slit of the nib is very, very long. Although not necessary, these characteristics help to improve the flex (literally flexibility) of the nib, allowing for great line variation. Flex nibs are necessary for lots of script-like calligraphy, such as Spencerian or Copperplate.
Fountain pen nibs come in many different sizes. Round tip nibs generally have a size marking: Extra Fine (EF), Fine (F), Medium (M), or Broad (B). Of course, there are specialty nibs with nibs such as needlepoint extra extra fine (EEF} nibs, or double broad (BB) nibs, but the 4 sizes listed above tend to be most common. Italics and stubs are generally sized by the width of the line that they draw, 0.3mm, 0.5mm, 0.7mm, etc. Flex nibs follow the same nomenclature as round tip nibs, but since their line variation is so large, the entire range is usually given. For example, the flex nib in the picture above is roughly a EF-BB nib.
Different nib sizes are used for different functions. Stubs, italics, and flex nibs tend to be good for art or calligraphy. Round tip nibs are good for general writing. Students tend to prefer EF or F nibs to write within the college ruled lines of notebooks, whereas more expressive people prefer the smoothness and wetness of a B. It's really up to you.
Hopefully, this introduction to basic nibs has proven useful. In the future, we will delve into more complex nibs, such as music nibs, and the whole array of Sailor specialty nibs. Thanks for reading!