Provia is a brandname for a pair of daylight-balanced color reversal films (slide film) produced by the Japanese film company Fujifilm

Fujifilm

is a multinational photography and imaging company headquartered in Tokyo, Japan.Fujifilm's principal activities are the development, production, sale and servicing of color photographic film, digital cameras, photofinishing equipment, color paper, photofinishing chemicals, medical imaging...

. It is available in two speeds

Film speed

Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system....

: 100/21° marketed as Fujichrome Provia 100F Professional [RDP III], and 400/27° marketed as Fujichrome Provia 400X Professional [RXP].

Provia 100F [RDP III] was developed to replace Provia 100 [RDP II] and Provia 400X [RXP] was developed to replace Provia 400F [RHP III], improving on colour image storage permanence and colour fading resistance. Provia has less saturated colors and contrast compared to Velvia

Velvia

Velvia is a brand of daylight-balanced color reversal film produced by the Japanese company Fujifilm. The name is a contraction of "Velvet Media", a reference to its smooth image structure. The original incarnation of the film was called "Velvia for Professionals", known as RVP, a classification...

.

Both films are available in 135

135 film

The term 135 was introduced by Kodak in 1934 as a designation for cartridge film wide, specifically for still photography. It quickly grew in popularity, surpassing 120 film by the late 1960s to become the most popular photographic film format...

 and 120

120 film

120 is a film format for still photography introduced by Kodak for their Brownie No. 2 in 1901. It was originally intended for amateur photography but was later superseded in this role by 135 film...

 formats. In addition, Provia 100F [RDP III] is available in 100 feet (30.5 m) rolls and various sheet sizes.

Both films have the ability to be pushed/pulled

Push processing

Push processing in photography, sometimes called uprating, refers to a film developing technique that increases the effective sensitivity of the film being processed. Push processing involves developing the film for more time, possibly in combination with a higher temperature, than the...

 from -1/2 stop

F-number

In optics, the f-number of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; in simpler terms, the f-number is the focal length divided by the "effective" aperture diameter...

 to +2 stops. Provia is also a favored film for cross processing

Cross processing

Cross processing is the procedure of deliberately processing photographic film in a chemical solution intended for a different type of film. The effect was discovered independently by many different photographers often by mistake in the days of C-22 and E-4...

.

Neither film requires reciprocity compensation between 1/4000 sec and one minute, with Provia 100F [RDP III] able to last up to two minutes. These longer times make the films particularly suitable for multiple exposure

Multiple exposure

In photography, a multiple exposure is the superimposition of two or more individual exposures to create a single photograph. The exposure values may or may not be identical to each other.-Overview:...

s.

Provia 400X [RXP] uses what Fujifilm describes as Epitaxial Sigma Crystal (ESC) technology to achieve a granularity of RMS11.