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Velvia
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| Velvia RVP[1] | |
|---|---|
![]() | |
| Maker | Fujifilm |
| Speed | ISO 50/18° |
| Type | Color slide |
| Balance | Daylight |
| Process | E-6 |
| Format | 35mm, 120, 220, 4×5 in, 8×10 in, 13×18 cm, Super 8†, 16mm† †Third party |
| Grain | RMS 9 |
| Exposure latitude | ±½ stop |
| Saturation | very high |
| Application | Nature |
| Introduced | 1990 |
| Discontinued | 2005[2] |
| Velvia 50 (Velvia II) RVP50[1] | |
|---|---|
| Maker | Fujifilm |
| Speed | ISO 50/18° |
| Type | Color slide |
| Balance | Daylight |
| Process | E-6 |
| Format | 35mm, 120, 220*, 4×5 in, 8×10 in*, QuickLoad 4×5 in* *Discontinued[3][4] |
| Grain | RMS 9 |
| Exposure latitude | ±½ stop |
| Saturation | very high |
| Application | Nature |
| Introduced | 2007 |
| Velvia 100 RVP 100[1] | |
|---|---|
Fuji Velvia 100 film cartridge | |
| Speed | ISO 100/21° |
| Type | Color |
| Format | 35mm, 120, 220, 4×5 in, 8×10 in |
| Grain | RMS 8 |
| Exposure latitude | ±½ stop |
| Saturation | very high |
| Application | Nature |
| Introduced | 2005 |
| Velvia 100F RVP 100F[1] | |
|---|---|
| Speed | ISO 100/21° |
| Type | Color |
| Format | 35mm, 120, 220, 4×5 in, 8×10 in, 9×12 cm, 13×18 cm |
| Grain | RMS 8 |
| Exposure latitude | ±½ stop |
| Saturation | high |
| Application | Nature |
| Introduced | 2002 |
| Discontinued | 2012 (Eur. NOAM)[5] |
Velvia is a brand of daylight-balanced color reversal film produced by the Japanese company Fujifilm. The original version of the film, was introduced in 1990 as "Velvia for Professionals", and given the classification code "RVP" meaning "Reversal/Velvia/Professional series".[1] It is known for its extremely high level of color saturation and image quality.[6][7] It has brighter and generally more accurate color reproduction, finer grain, twice the speed, and a more convenient process (E-6). Kodachrome 25 fell out of popularity a few years after Velvia was introduced (in part because of Kodak's lack of interest in promoting their film); Kodachrome 64 and 200 followed more slowly. Kodachrome 25 had previously been considered the film to which all other films had been compared, and cannot fairly be compared to Velvia, as Kodachrome is an entirely different process, in which the image is produced with "color clouds" more so than grain.
Velvia has the highest resolving power of any slide film.[8][9] A 35 mm Velvia slide can resolve up to 160 lines per mm.[10]
Appearance
[edit]-
Sunset over the St. Lawrence River, shot on 6x6 cm Velvia 50
-
Huntington Lake, shot on 35mm Velvia 50
Velvia has very saturated colors under daylight, high contrast, and exceptional sharpness. These characteristics make it the slide film of choice for many nature photographers.[citation needed]
Speeds
[edit]Original Velvia
[edit]The original Velvia was an ISO 50 film. In practice, many photographers used an exposure index (EI) of 40 or 32 to increase exposure slightly (one or two thirds of a stop respectively) in order to yield less saturated colors and more shadow detail.[11] It was discontinued in 2005.
Velvia 50
[edit]Velvia 50 (RVP50) was reintroduced, on the new film base, in 2007, after announcements, under the provisional name Velvia II. The original Velvia had been discontinued because of difficulties in obtaining some of the raw materials needed to make the emulsion. Fuji R&D created a new emulsion which substituted different materials in its manufacture yet retained the appearance of the classic Velvia.[12]
Velvia 100
[edit]Velvia 100 was introduced in 2005, to replace the discontinued original Velvia.[5] It is about as saturated as the original version but was designed to be more accurate in color reproduction.[13] It used the new "Super-fine Sigma-crystal" technology which ended the need for larger grain size to achieve greater film speed. The newer speed also has finer grain (an RMS granularity value of 8), and uses the color correction layers found in Provia 100F. The Advanced DIR Technology releases developer inhibitors release compounds that regulate interlayer and edge effects yielding dramatic improvements in color reproduction. The color rendition of Velvia 100 was designed to record all colors even more accurately. Reciprocity failure was reduced for long exposures and dye stability extended. Fujichrome F transparency films held color accuracy for years of archival color stability, while Kodachrome films faded in less than 20 minutes of accrued projection.[citation needed]
On July 6, 2021, Fujifilm announced the discontinuation of Velvia 100 within the United States, effective immediately. The chemical phenol, isopropylated phosphate (3:1) (PIP (3:1)) (CASRN 68937-41-7), the use of which is banned under the EPA's Toxic Substances Control Act (TSCA), is present in minuscule quantities within the layers of the film. While Fujifilm believes the trace amount is not harmful to the environment, they opted to discontinue the film within the United States in compliance with the regulation. Their statement does not make it clear if the film will continue to be sold in other markets.[14]
Velvia 100F
[edit]Velvia 100F offers saturated colors, better color fidelity and higher contrast. It was introduced in 2002.[15] It was discontinued in 2012 in most formats and markets, and is now only sold as sheet film (4x5" and 8x10") exclusively in Japan.[16][17][18] Velvia 100F is less saturated than RVP50 and is accurate in color rendition with the exception of yellow. It exaggerates this color, especially when there is a slight yellowish cast in the scene. On film, this will be a deeper and more noticeable yellow. Skin color was rendered better.[19]
Long exposure problems
[edit]The original Velvia suffered much more from reciprocity failure than most other films. Exposing the film for as little as 16 seconds produced a color shift, typically to purple or green, depending on shooting conditions. Anything over four seconds requires the use of magenta color correction filters if correct color balance is required, exposures of 64 seconds and longer are "not recommended" by Fuji.[8]
Velvia 100 is much better with long exposures: no reciprocity failure compensation is required for exposures shorter than 1 minute.[20]
Velvia in cinematography
[edit]Velvia film stock was available through 2006[citation needed] and was used for many commercials, but rarely for feature films. Its main use in movies was for shooting stock landscape shots and special-effects background plates. One example is the 1998 film What Dreams May Come, which took place largely within a painting. After being discontinued, the closest replacement for the original Velvia film stock was Eterna Vivid 160, which produced roughly the same color effect while being more easily processed. In 2013, Fujifilm ended production of all motion picture film.[21]
Since 2006, Velvia 50 D (also sold as Cinevia) is available in Super 8 via three independent companies, Pro8mm in the US, and GK Film and Wittner Kinotechnik in Europe. Spectra Film and Video has also been loading Fuji Velvia into Super 8 cartridges and for 16 mm. They recently modified the Kodak-supplied cartridges to ensure a smoother transport of Velvia film through the cartridge.
See also
[edit]References
[edit]- ^ a b c d e Paul, Matthias R. (2006-09-26). "RE: Neuer Diafilm: Fuji Provia 400X" [RE: New slide film: Fuji Provia 400X]. Minolta-Forum (in German). Retrieved 2022-06-08. [
"RA" - Fujichrome Sensia II 100 (1997?), Sensia 100 ("New" (2000?) [Europa], Sensia III 100 [Japan]
"RAP 100" - Fujichrome Astia 100 Professional (1997)
"RAP 100F" (also "RAP F"?) - Fujichrome Astia 100F Professional (2003 - 2010)
"RD" - Fujichrome 100, Sensia 100 (original) (1994?) (reportedly also Sensia II 100?)
".RD"? - Fujichrome Sensia 100 (original) (1994?)
"RD II" - Fujichrome?
"RDP" - Fujichrome 100 D Professional (1993)
"RDP II" - Fujichrome Provia 100 Professional (1994)
"RDP III" - Fujichrome Provia 100F Professional (1999 - according to Gert Koshofer several modifications without name changes)
"RF" - Fujichrome 50 (1993)
"RFP" - Fujichrome 50 D Professional (1993)
"RH" - Fujichrome 400 (1993), Fujichrome Sensia 400, Sensia II 400
"RHP" - Fujichrome 400 D Professional (1993) (reportedly also Fujichrome Provia 400 Professional?)
"RHP II" - Fujichrome Provia 400 Professional (never produced according to an article by Gert Koshofer?)
"RHP III" - Fujichrome Provia 400F Professional (ca. 2001 - 2007)
"RXP" - Fujichrome Provia 400X Professional (2006/2007 - 2013)
"RM" - Fujichrome Sensia 200 (2000?), Sensia II 200
"RMS" - Fujichrome Multispeed MS 100/1000 Professional (1998) (ISO 100, pushable to ISO 200 (P1), 400 (P2), 800 (P3), 1000 (P4))
"?" - Fujichrome 800?
"RSP" - Fujichrome 1600 D Professional (1993), Fujichrome Provia 1600 Professional
"RSP II" - Fujichrome P1600 D Professional
"RTP" - Fujichrome 64T Professional (ISO 64) (1993)
"RTP II" - Fujichrome 64T Type II Tungsten Professional (ISO 64) (1999?)
"RTP III"? - Fujichrome T64 Tungsten Professional (ISO 64) (2006)
"RVP" - Fujichrome Velvia Professional (ISO 50) (1989/1990 - 2005/2006)
"RVP50" - Fujichrome Velvia II? Professional (ISO 50) (2006/2007)
"RVP 100" - Fujichrome Velvia 100 Professional (2003/2005)
"RVP 100F" (also "RVP F"?) - Fujichrome Velvia 100F Professional (2002/2003 - 2012)
"?" - 'Cinevia' (Fujichrome Velvia 50 D in Super-8 cartridge) (2006)
"?" - Fujichrome fortia (ISO 50) (2004 - limited edition) [Japan]
"?" - Fujichrome fortia SP Professional (ISO 50) (2005 - limited edition) [Japan] (Known production batch "FUJI FORTIA SP-162" in 2006, "164-101" in 2007)
"?" - Fujichrome TREBI 100C (2001) [Japan]
"?" - Fujichrome TREBI 400 [Japan]
"CDU" - Fujichrome CDU Duplicating Film
"CDU II" - Fujichrome CDU II Duplicating Film (ISO 5 - 10)
"?" - Fujichrome 25 ix
"?" - Fujichrome 50 ix
"?" - Fujichrome 80 ix
"?" - Fujichrome 100 ix
"?" - Fujichrome 150 ix] (NB. Comprehensive overview on Fujifilm Fujichrome slide film codes.) - ^ "Fuji Velvia 50". Retrieved 2009-03-25.
- ^ "British Journal of Photography". Bjp-online.com. Retrieved 2014-12-29.
- ^ "Looks like bad news for slides". Talk Photography. 2013-06-18. Retrieved 2014-12-29.
- ^ a b "British Journal of Photography". Bjp-online.com. Retrieved 2014-12-29.
- ^ "Fuji Velvia 50".
- ^ "Super Film Shootout" (PDF). Earth Sea Publishing. Archived from the original (PDF) on 2018-07-13. Retrieved 2023-01-27.
- ^ a b "Fuji Velvia" (PDF). Fujifilm.com. Retrieved 2014-12-29.
- ^ "The Green Signature Darkroom". Thegreensignature.com. Retrieved 2013-02-04.
- ^ "FUJICHROME Velvia for Professionals (RVP)" (PDF). Fujifilm. 2004-02-25. Archived from the original (PDF) on 2007-09-27. Retrieved 2007-06-10.
- ^ Rowell, Galen (1993). Galen Rowell's Vision The Art Of Adventure Photography. San Francisco: Sierra Club Books. p. 89. ISBN 0-87156-458-0.
- ^ "FUJICHROME Velvia 50 Professional (RVP50)" (PDF). Fujifilm. Archived from the original (PDF) on 2015-09-24. Retrieved 2009-03-25.
- ^ "Velvia 100 datasheet" (PDF). Fujifilm Corporation. Retrieved 2014-12-29.
- ^ "FUJICHROME Velvia 100". Fujifilm. Archived from the original on 2021-07-06. Retrieved 2021-07-06.
- ^ "FUJICHROME Velvia 50 Professional". Retrieved 2011-01-17.
- ^ "フィルム 価格表/JANコード". www.fujifilm.com. Retrieved 2021-10-17.
- ^ "British Journal of Photography". Bjp-online.com. Retrieved 2014-12-29.
- ^ "Looks like bad news for slides". Talk Photography. 2013-06-18. Retrieved 2014-12-29.
- ^ "Velvia 100F: Best Slide Film Ever?". 2008-12-17.
- ^ "FUJICHROME Velvia 100 Professional (RVP 100)" (PDF). Fujifilm. Retrieved 2011-01-04.
- ^ "Discontinued Films". Fujifilm Global. Retrieved 2019-02-28.
External links
[edit]
Media related to Velvia at Wikimedia Commons- Fujichrome products page Archived 2008-06-11 at the Wayback Machine
- Super8camera.com for Velvia samples & other super-8mm stock.
Velvia
View on GrokipediaHistory and Development
Launch and Initial Reception
Fujifilm introduced the original Velvia, designated RVP, as a professional color reversal film in 1990, initially available in 35mm format with an ISO 50 sensitivity rating.[1][4] This daylight-balanced transparency film was positioned as a high-performance option for E-6 processing, targeting demanding applications where image quality was paramount.[5] Marketed explicitly as "Velvia for Professionals," the film emphasized its exceptional color saturation and vivid rendition, making it ideal for landscape and nature photography among professional users.[6][4] Fujifilm highlighted its ability to deliver punchy, realistic hues that enhanced natural scenes, distinguishing it from more neutral-toned predecessors in the reversal film category.[5] Upon release, Velvia received immediate acclaim for its superior color rendition and resolution compared to earlier films like Fujichrome Professional (Pro 50) and Kodak's Kodachrome 25.[5] In the June 1990 issue of Outdoor Photographer, renowned landscape photographer Galen Rowell described it as "the best of all existing worlds," noting that controlled tests showed its resolution exceeding that of competitors, which prompted his swift adoption for wilderness imagery.[5] This enthusiasm extended to the broader professional community, where Velvia rapidly gained traction in advertising, fashion, and stock photography, eroding the dominance of Kodachrome through its easier E-6 processing and heightened saturation that aligned with emerging preferences for more vibrant aesthetics.[5]Evolution and Updates
Following the foundation laid by the original Velvia in 1990, Fujifilm soon expanded its availability to include 120 roll film and sheet formats in 4x5 and 8x10 sizes in the early 1990s, enabling its use in medium- and large-format photography where high saturation and fine detail were prized by landscape and nature specialists.[5] In 2003, Fujifilm introduced Velvia 100F as a fine-grain iteration of the line, incorporating Multi-Color-Correction Layer technology and advanced emulsion formulations to deliver ISO 100 speed alongside super-fine granularity (RMS 8) and enhanced sharpness for professional applications requiring nuanced hue reproduction without compromising the vivid color palette.[7] Building on this, Fujifilm released Velvia 100 in 2005 as a direct successor to the ISO 50 original, offering greater low-light versatility through its higher speed while preserving the intense color saturation that defined the series and addressing demands for broader exposure flexibility in challenging conditions.[8] These updates reflected Fujifilm's response to professional photographers' feedback, prioritizing enhancements in speed, grain control, and reciprocity performance to suit diverse lighting scenarios—from handheld shooting to extended exposures—while upholding the core attribute of exceptional saturation that had established Velvia's reputation.[9] In response to strong demand, Fujifilm reintroduced Velvia 50 in 2007 with a reformulated emulsion on a new film base, maintaining its signature characteristics.[10]Characteristics
Color Saturation and Appearance
Velvia is renowned for its exceptionally high color saturation, particularly in greens, blues, and reds, achieved through Fujifilm's proprietary dye-forming couplers that enhance chroma density without artificial post-processing boosts.[11] This technology incorporates advanced cyan, magenta, and yellow couplers designed to produce vivid hues while maintaining color fidelity across the spectrum.[12] The film's signature "Velvia look" features punchy, saturated colors that render landscapes with dramatic intensity, including deep blacks for rich shadow detail and luminous highlights that preserve subtle tonal gradations.[13] This aesthetic is supported by a limited dynamic range of approximately 5 stops, which emphasizes contrast for a bold visual impact but requires precise exposure to avoid clipping.[14] In comparison to more neutral transparency films like Kodak Ektachrome, Velvia exhibits an intentional bias toward warmer tones and elevated contrast, resulting in more dramatic and saturated renditions rather than balanced, grayscale-accurate reproduction.[15] Photographers often recommend slight overexposure by about 1/3 stop to optimize saturation and highlight rendering, enhancing the film's inherent vibrancy.[16] Variations in ISO speeds, such as between Velvia 50 and 100, can subtly influence color balance by altering the emulsion's response to light wavelengths.[17]Sensitivity and ISO Speeds
The original Fujifilm Velvia, introduced as a daylight-balanced color reversal film, features a nominal ISO speed rating of 50, optimized for high saturation and fine grain in bright lighting conditions such as daylight landscapes.[18] This sensitivity provides excellent exposure latitude in sunny environments, allowing for precise control over color rendition, but it limits usability in low-light scenarios where faster films are preferred.[19] Subsequent variants, such as Velvia 100, increased the base ISO rating to 100 through refinements in the emulsion layers, enhancing versatility for a broader range of shooting conditions while maintaining the film's signature vivid color profile.[11] This adjustment allowed photographers to capture scenes with slightly reduced light without resorting to slower shutter speeds, though the effective speed relies on accurate metering to preserve optimal results.[20] Velvia films exhibit a narrow exposure latitude, typically tolerating about 1/2 stop of underexposure to +1 stop of overexposure with minimal shifts in color balance and gradation, necessitating precise exposure metering for consistent outcomes.[19] Push-processing can extend the effective speed up to ISO 200 (or EI 400 for Velvia 100), but this often introduces noticeable color shifts, particularly in saturation and balance, making it suitable only for select high-contrast scenes.[11][20] Regarding reciprocity characteristics, the law of reciprocity holds accurately for exposures from 1/4000 second to 1 second, beyond which compensation for both speed loss and color balance becomes necessary, typically starting with +1/3 stop at 4 seconds for ISO 50 variants.[19] This deviation underscores the film's design for standard daylight exposures rather than extended times.[11]Grain Structure and Resolution
Velvia films exhibit one of the finest grain structures among color reversal films, with RMS granularity values ranging from 8 to 9, enabling large-format enlargements with minimal visible texture.[11] The original Velvia at ISO 50 achieves an RMS of 9, while ISO 100 variants improve to 8 through refined emulsion technology, resulting in even subtler grain patterns across the product line.[21] This ultra-fine grain stems from Fujifilm's multi-layer emulsion design, which incorporates precisely sized silver halide crystals to minimize density fluctuations while preserving detail.[19] In terms of resolving power, Velvia demonstrates exceptional capabilities, rated at 80 lines per mm for low-contrast subjects (1.6:1) and up to 160 lines per mm under high-contrast conditions (1000:1).[22] In practical applications with optimal optics and exposure, this translates to 100-120 lines per mm, allowing the capture of intricate textures in landscapes and fine details in nature subjects.[9] The multi-layer structure contributes to this performance by optimizing light transmission and contrast within each color-sensitive layer, outperforming competitors like Agfa CT Precisa, which records an RMS granularity of 10 and lower resolution of around 60-140 lines per mm.[23] These attributes make Velvia particularly suited for high-end reproduction workflows; its fine grain and superior resolution facilitate drum scanning at 4000 dpi or higher without introducing artifacts, yielding digital files suitable for inkjet prints up to 24x36 inches from 35mm originals with sharp, noise-free results.[9] The enhanced perceived sharpness from color saturation further amplifies detail rendition in projected or printed outputs.[21]Variants
Original Velvia
Fujichrome Velvia (RVP), introduced by Fujifilm in 1990, is a professional daylight-type color reversal film rated at ISO 50/18°. Initially launched in 35 mm format with 36 exposures per roll, it was later made available in 120 roll film (producing 12 exposures on 6x6 cm) and sheet film sizes including 4x5 inch, 5x7 inch, 8x10 inch, 9x12 cm, and 13x18 cm, allowing versatility across medium and large format photography. The film uses a cellulose triacetate base, with thicknesses of 127 μm for 135 rolls, 104 μm for 120/220 rolls, and 205 μm for sheets, ensuring dimensional stability and compatibility with standard holders and processors.[18][24] The emulsion employs a multi-layered structure optimized for natural light, featuring cyan, magenta, and yellow couplers that deliver exceptionally high color saturation and vibrant reproduction, particularly in reds, greens, and blues. This design yields the film's signature "Velvia effect," a term widely used in photography circles to denote its intense, vivid color rendering and enhanced contrast, which revolutionized landscape and nature imaging by providing unmatched chroma levels for its era. With extra-fine grain (RMS granularity measured at density 1.0 using a 48 μm aperture) and resolving power of 80 lines/mm at 1.6:1 contrast (or 160 lines/mm at 1000:1), it excels in sharpness and detail retention.[24][25] Processing requires the E-6 chemistry or equivalent systems like CR-56, with standard development times including 6 minutes for the first developer at 38°C (100.4°F), 8 minutes for the color developer, and 3 minutes for the pre-bleach, to achieve optimal color balance, saturation, and archival stability. The film can be push-processed to ISO 100 for one stop more exposure latitude, though this may slightly increase contrast and grain. Later variants, such as Velvia 100, built upon this foundation with refined sensitivities.[18][24]Velvia 100
Velvia 100, officially designated FUJICHROME Velvia 100 Professional [RVP 100], is a daylight-balanced color reversal film introduced by Fujifilm in 2005 as a higher-speed evolution of the original Velvia line. With an ISO rating of 100, it doubles the sensitivity of the ISO 50 predecessor while preserving the renowned ultrahigh color saturation and vivid reproduction that define the series. Available in multiple formats including 35mm (135), medium format (120 and 220), and large-format sheet films (4x5 inch and 8x10 inch, including QuickLoad options), it catered to professional photographers requiring versatility across shooting scenarios.[26][11] This variant incorporates advanced emulsion technologies, such as new dye-forming couplers and processes like Primary Super High-sensitivity Coupler (PSHC) and Color Enhancing Layer (CEL), to enhance color fidelity and stability without compromising saturation. It achieves superb granularity with an RMS value of 8, enabling high-resolution results suitable for detailed scenic work. Exposure latitude is expanded compared to the original Velvia, supporting push/pull processing from –1/2 to +2 stops (up to EI 400) with minimal shifts in color balance or density. The film excels in mixed lighting conditions, delivering consistent and vibrant tones even under varied illumination.[11] A major improvement lies in its reciprocity performance, which requires no exposure or filtration compensation for shutter speeds ranging from 1/4000 second to 1 minute, far surpassing earlier Velvia films and enabling reliable long-exposure photography in low-light environments like dusk landscapes. Targeted primarily at nature and scenery photographers, Velvia 100 reinforced the line's appeal for high-impact, saturated imagery during the mid-2000s shift toward digital alternatives.[11][27][3]Velvia 100F
Fujichrome Velvia 100F Professional (RVP100F) was introduced in 2003 as a medium-speed, daylight-balanced color reversal film with an ISO rating of 100, designed to deliver exceptional color saturation and fidelity while prioritizing ultra-fine grain for professional applications.[28] This iteration built upon the foundational Velvia line by increasing sensitivity to ISO 100 without compromising the vivid color reproduction that defined the series.[29] A key advancement in Velvia 100F was its RMS granularity of 8, measured at a density of 1.0 using a 48-micrometer aperture, which represented one of the finest grain structures available in reversal films at the time and made it particularly suitable for high-magnification enlargements.[29] The film's resolving power reached 80 lines per millimeter at a chart contrast of 1.6:1 and up to 160 lines per millimeter at 1000:1, enabling sharp detail capture essential for demanding reproduction needs.[29] Emulsion innovations included Multi-Structured Silver Halide Crystals (MSSC) technology, which contributed to the ultra-fine grain by optimizing silver halide arrangement for reduced visible texture; Pure Silver Halide Coupler (PSHC) technology for enhanced color purity and stability; and Multi-Color Correction Layer (MCCL) technology to improve overall color fidelity and minimize shifts in subtle hues.[29] These developments resulted in sharper edge definition and reduced color fringing compared to earlier Velvia films, particularly in complex scenes with fine details.[29] Velvia 100F targeted commercial photographers and professionals requiring high-quality transparencies for drum scanning, large-format printing, or detailed product and interior imaging, where minimal grain and maximum resolution were critical for output quality.[29] Its improved color stability also supported long-term archival uses in nature and landscape work, outperforming predecessors in fade resistance.[29]Technical Limitations
Long Exposure Reciprocity Failure
Long exposure reciprocity failure in Velvia films refers to the breakdown of the reciprocity law, which states that photographic exposure is the product of light intensity and duration, in reversal emulsions under low-intensity, prolonged illumination. This phenomenon causes a loss of effective film speed, reduced maximum density, and unbalanced color reproduction, manifesting as a magenta cast due to differential sensitivity decay in the blue- and red-sensitive layers compared to the green-sensitive layer. In Velvia films, these effects become noticeable beyond 1 to 4 seconds, with the original Velvia (ISO 50) showing pronounced issues starting at 4 seconds, while later ISO 100 variants exhibit milder shifts only after 1 minute.[19][11] Fujifilm provides specific compensation guidelines to mitigate these effects. For the original Velvia, photographers must increase exposure and apply magenta color correction filters for shutter speeds of 4 seconds or longer, as detailed in the table below:| Exposure Time (seconds) | Exposure Compensation (stops) | Color Correction Filter |
|---|---|---|
| 4 | +1/3 | 5M |
| 8 | +1/2 | 7.5M |
| 16 | +2/3 | 10M |
| 32 | +1 | 12.5M |
