#NIKON FE SERIAL NUMBER YEAR CODE FULL#
#NIKON FE SERIAL NUMBER YEAR CODE SERIES#

If you’re comparing lenses among different systems, you have to also multiply each lens speed by the crop factor. A lens of the type “18-50 mm f/2.8,” on the other hand, has a nice lens speed of f/2.8 throughout its whole range of focal lengths, and so it’s higher-quality (but also larger, heavier, and more expensive…). Its lens speed smoothly changes between these two extremes. If there is a range of numbers after the slash, like there is for example in “18-55mm f/3.5-5.6,” that means that the lens has a lens speed of f/3.5 at the 18mm focal length, but a lens speed of f/5.6 at the 55mm focal length. Unfortunately lenses with better lens speed are larger and heavier, and thus also more expensive. when focusing on an object, the background will be blurred more quickly (that is, at smaller differences of distance) than on a lens with a numerically higher (worse) minimum f-number. Moreover, it has a smaller depth of field, i.e. Smaller numbers are better-the smaller the number, the more light goes through the lens and the more easily it can take pictures even in deeper darkness. Also called the minimum f-number, it specifies how much light the lens lets through (for highly advanced readers: ignore the minor difference between the f-stop and the t-stop). The lens speed is listed after the small “f” and the slash. Although these fixed lenses are less universal, they tend to have higher image quality, making them a favorite among advanced photographers. “50/1.4”), then this is a lens that has no zoom ability and shoots with just one focal length. If there is only one number instead of a range of focal lengths listed before the slash (e.g. The cheaper DSLRs have a sensor about 1.5 times smaller, so you use a crop factor of 1.5 for multiplication, and thus their focal lengths of 18–55 mm correspond to 27–83 for full-frame cameras. The crop factor is multiplied by a specific focal length to get an equivalent for the full-frame world. how many times smaller (or for some rare cases, larger) the given sensor is than a reference sensor size called full-frame (the size of a film frame its crop factor = 1).

So if you want to compare lenses made for cameras with different sensors, you need to know the crop factor, i.e. Things are complicated a bit by the fact that angle of view depends both on focal length and sensor size. Often they are supplemented in people’s gear by a 70–300 lens, which on the other hand is a pure telephoto. So an ordinary, basic 18-55 DSLR lens can “zoom” from medium-wide views out to the beginning of telephoto range. From this you can tell what angles of view the particular lens can handle. The first number or pair of numbers indicates the range of available focal lengths in millimeters. The first number gives the range of focal lengths in millimeters, while the second gives the lens speed (for the 1.4/50 designation it’s vice-versa). Very often you’ll see a shortened notation with no units, of the sort “50/1.4.” In exceptional cases, generally on older lenses, you can also find the numbers reversed: “1.4/50.” Everything can also be expressed as “50 mm 1:1.4” or “50 mm F1.4.” But in all cases this is nothing more than a way of writing the numbers their meaning is always the same.ĥ0 mm f/1.4 // 50/1.4 // 1.4/50 // 50 mm 1:1.4 // 50 mm F1.4 Other methods for expressing this information also exist.

#NIKON FE SERIAL NUMBER YEAR CODE SERIES#

No matter how the lens is designated, somewhere in the middle of it you’ll find a series of numbers, typically in one of the following formats: And it teaches you that some of them can be very treacherous-one good example is “Tamron SP AF 17-50mm f/2.8 XR Di-II VC LD Aspherical (IF) for Canon.” The Numbers are the Foundation For one thing, this lets you determine how good your lens is, and for another, it lets you quickly search among the dozens of items in shop catalogs when you’re buying a new lens. It’s absolutely essential that get a grip on manufacturers’ lens designations. Take a look at which pieces of information are important for you and what it all means.

#NIKON FE SERIAL NUMBER YEAR CODE FULL#

Lens names are full of abbreviations, number ranges, and useless advertising.

Nikon fe serial number year code