Work Flow

Planning    Exposing    Developing    Inspecting

Film Formats   Scanning   Retouching   Printing

Planning
Before Carlos sets out to create art, he spends much time planning and preparing for an extended shoot. This involves everything from ordering all of the consumables i.e. film, batteries, food etc. to researching the roads and trails he will use to get to his destination. He studies books, magazines and topo maps to find just the right places to image at the right time of the year. But it is never the destination that drives Carlos,  it’s the journey in getting there and finding the “Look” he is after. He considers himself an artistic opportunist. When he sees the right scene, he starts to work the image in his mind, pondering different perspectives and compositions. Other elements that play a role in scene formation include the weather, the camera, the lens, and the film necessary to capture the near and far. When he has the bulk of these details worked out, he defines a plan to meet the objectives. Even though this is a lot of work, for Carlos it is not work and never has been; it is a labor of love - his passion in life.


Exposing
Image of 8x10 camera

Exposing is a critical portion of the process; all other downstream processes rely on it directly. Once the proper composition and perspective is realized and the ideal camera, lens and film combination is selected, Carlos meters the scene with a Minolta IV F with the 5 degree spot meter attachment to measure the contrast ratio from highlight to shadow. Depending on the scene’s dynamic range, he may need to take two exposures: one for highlight detail and one for shadow. He then combines these during the retouching process. If the ratio is such that a single exposure will contain all detail from highlight to shadow, Carlos will expose one sheet. He may take additional exposures and vary camera parameters such as tilt, swing, focus
, exposure etc. to ensure that one excellent image is obtained. Although this is expensive, it always costs more to go back and the light is never the same.

Carlos has two main goals during exposure. For the first, he asks if the scene moves him with artistic value and beauty. The second is technical in nature,  with many variables to consider, including film format, lens, focus, shutter speed, camera movements, and the almighty f/stop. Carlos wrestles endlessly on some scenes to have a working aperture of f/16-22 using 4x5 and f/32-45 using 8x10. The f/stop used is directly related to depth of field and optical diffraction which controls the resolution on film. 

The smaller the aperture the greater the depth of field but lower the resolution. So it is a double-edged sword that must be considered on every exposure. In most cases, he will make all the camera movements necessary to achieve the maximum depth of field and set focus using the hyperfocal distance to improve depth of field even further. If Carlos can’t achieve his f/stop goals, he will use a different lens and change his perspective to achieve his goal.

The new generation of large format Aspheric lenses from Schneider allow him to use even wider than normal f/stops with excellent detail in the corners of the frame. In addition to 8x10 format, Carlos also implements 8x20, not by using an 8x20 camera, but by exposing two overlapping 8x10 frames to create an 8x20 in the retouching process. In this way, he achieves all the benefits of 8x10, with none of the selection and quality issues associated with conventional 8x20. Using this technique, he achieves museum quality grand panoramas, suitable for the most elite clientele.




Developing
When the film is exposed, the next step is to develop the film. Carlos shoots mainly transparent color films with an ISO index of 40 to 100, but in some cases he exposes for a +1 f-stop push process. The exposed E6 film is removed from the film holders in the darkroom and placed in a film processing drum and rotated for several minutes until the film reaches the correct process temperature. When the set point is reached, the chemistry is induced into the drums for set periods depending on how the film was originally exposed. The developed film is then washed, dried and inserted into plastic archival film sleeves.


Inspecting
Inspecting images on light table

The sleeved film is placed on a large 3’x4’ light table using 5000 k daylight temperature lamps that match the film’s requirement. The slides are sorted for artistic value, composition, perspective and technical correctness. Slides of the same scene are set side by side to compare and select the best ones in a group. As the acceptable group of film gets smaller and smaller, a higher power loupe is selected and the process is continued. Carlos uses Rodenstock and Schneider aspheric loupes from 3x-6x and the final inspection is performed with a 60x microscope. The final selection is critical because the time involved to scan and retouch each image can be several days. 



Film Formats
Film Format Comparison

Carlos images with five different film formats. They are, in order of size (smallest to largest):  35mm, 6x6cm,  6x8cm, 4x5in, and 8x10in.  He also uses a special panaorama technique where he combines two overlapping 8x10 images to create a final 8x20 inch file. This final panoramic image represents the ultimate in fine art in sizes up to 64x140 inches at a quality that is unmatched!



Scanning


At the start of the scanning process, the film is cleaned on both sides with a film cleaner and dried in a film dryer. The film is taped to an acrylic drum and a clear sheet of optical grade Mylar is taped over the film. Next, Carlos sprays an optically pure alcohol-based film mounting fluid on both sides of the film. Then the excess fluid is squeezed off the drum with a roller to prevent air bubbles. The remaining exposed edges of the mylar is taped to the drum. The mounted film is inspected with a jeweler’s magnifying hood for any defects. The drum is now mounted into the scanner and a prescan is performed. The prescan sets up all the conditions for the final scan and any adjustments required are made to reproduce the original as closely as possible.

                                  There are five parameters required to obtain the highest scan quality:
Resolution 
Carlos owns the Heidelberg D8400 Primescan drum scanner. This machine has an optical resolution of 11,000 ppi. The scanner allows for independent control of dpi input, % enlargement, and optical aperture.  This allows Carlos to capture all the resolution on the film.

Tonal Range
The Heidelberg scanner incorporates three ultra-low noise, high sensitivity (PMT) photomultiplier tubes as the light detectors. These PMT's have a very large dynamic range and (SNR) signal to noise ratio far greater than CCD based scanners or CMOS DSLR cameras. This capability allows Carlos to capture the entire tonal range  of the film from pure black to pure white  with virtually no scanner noise.
 
Color Accuracy
The three PMT’s previously mentioned have either a  Red, Green or Blue non fade dichroic filter in front of each tube. This allows for a more accurate color profile to be obtained as each color channel is measured and then profiled independently. These steps are repeated  for each film emulsion and results in the most accurate color capture possible.

Color Depth
The scanner incorporates a hardware 16 bit (DAC) digital to analog converter on the main electronic board and the Newcolor scanning software supports true 16 bit scanning. Carlos scans all of his images in the LAB color space. This is the largest color space  and is  larger than  the colors that film can contain, so nothing is ever missed. This hardware and software capability enables him to scan at a true 16bpp color depth and then use the Pro Photo RGB working space within CS4.
Scan Accuracy 
The  final parameter for ultimate scan quality (which can not be under-rated), is to add nothing that is not on the film or to miss anything that is on the film. This parameter can only be achieved with the very best scanner and careful setup of the pre-scan.

Adobe Reader Adobe Reader Adobe Reader
Primescan Newcolor 7000 Newcopix


Retouching
The 16 bit scanned image is then opened in CS4, the 64 bit version of Adobe Photoshop, and processed to ensure the image matches the original as closely as possible. Only a few steps are typically used to achieve this goal. Curves are used to ensure proper tone and scale are achieved with the white point set to help eliminate any color cast. Dust and lint are removed and color balance is adjusted to ensure the file matches the original film. The final step is to soft proof the image for the intended paper & ink combination. The image is inspected at 200%. If it matches the original film, it is saved in 16 bit PSD or the Large Document file format so all adjustment layers are preserved. Carlos uses a very powerful custom-designed 64 bit Quad Processor with 16GB of main memory and an 8 drive raid zero scratch disk with 1GB of cache. His machine runs XP-64 operating system and he uses the Sony Artisan color calibrated monitor.


Printing
Printer

At this final stage, the completed 16bit processed digital file is opened. Carlos typically outputs at 360 dpi using a RIP from ColorByte software. The printer is profiled for the specific paper, ink and intended lighting environment. When printing is complete, the print is carefully inspected to ensure print quality and left to outgass for 24-48 hours. It is then rolled into a shipping tube for delivery. 

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Planning    Exposing    Developing    Inspecting
   
Film Formats     Scanning    Retouching    Printing


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