However, the challenges of distortion prediction within the whole focal range limit the widespread application of zoom lens cameras greatly.

Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored.įor visual measurement under dynamic scenarios, a zoom lens camera is more flexible than a fixed one.

Use a comma to separate multiple people: J Smith, RL Jones, Macarthur.

Use these formats for best results: Smith or J Smith.

For best results, use the separate Authors field to search for author names.

Use quotation marks ' ' around specific phrases where you want the entire phrase only.

Question mark (?) - Example: 'gr?y' retrieves documents containing 'grey' or 'gray'.

Asterisk ( * ) - Example: 'elect*' retrieves documents containing 'electron,' 'electronic,' and 'electricity'.

Improve efficiency in your search by using wildcards.

Example: (photons AND downconversion) - pump.

Example: (diode OR solid-state) AND laser.

Note the Boolean sign must be in upper-case.

Separate search groups with parentheses and Booleans.

Keep it simple - don't use too many different parameters.

Generated on Sun 17:57:39 for lensfun by 1.8.

How database files are found and loaded.

Adding mount adapters: lensfun‑add‑adapter.

Updating Lensfun's database: lensfun‑update-data.

Furthermore, it can convert between different types of lenses, for example from fisheye into rectilinear. Right now Lensfun is designed to correct distortion, transversal (also known as lateral) chromatic aberrations, and vignetting.

The Lensfun library not only provides a way to read the database and search for specific things in it, but also provides a set of algorithms for correcting images based on detailed knowledge of lens properties and calibration data.

This database was used as the basement on which Lensfun database grew, thanks to PTLens author which gave his permission for this, while the code was totally rewritten from scratch (and the database was converted to a totally new, XML-based format). In the past there was a effort in this direction (see ), but then author decided to take the commercial route and the database froze at the last public stage. The goal of the Lensfun library is to provide a open source database of photographic lenses and their characteristics.

Epaperpress ptlens