Nikon film scan (Slides of microscopic specimens)
From GBIF.DE IT Wiki
Scanner hardware
Nikon Super Coolscan 5000 ED (film scanner)
Specifications
- Scanning system: Fixed film, movable plane single-pass optical scanning system
- Light source: R, G, B and Infrared (IR) LEDs
- Image sensor: 3,964-pixel, two-line linear CCD image sensor
- Color separation: Performed by RGB LEDs
- Optical resolution: Up to 4,000 pixels per inch
- A/D conversion: 16 bits per color
- Density range: 4.8
- Output: Full color or greyscale at 8 or 16 bits per channel
- Focus: Auto and manual; autofocusing point selectable
Processable media
Negatives and positives, in color and monochrome
- 35mm slides
- Slides with mounts 1.0 - 3.2mm thick, 49 - 50.8mm wide; optional SLIDE FEEDER SF-210 can be used to scan up to 50 slides with mounts 1.5mm thick
- 35mm film strips
- 2 - 6 frames (2 - 40 frames with optional ROLL FILM ADAPTER SA-30); strips of 1 - 6 frames can be scanned with optional STRIP FILM HOLDER FH-3
- APS (IX240) film
- Slides with mounts 1.0 - 3.2mm thick can be scanned with optional 120/220 MOUNTED FILM HOLDER FH-869M
- Preparates (slide glass for microscope)
- Prepared slides (26 x 76mm, 0.8 - 1.5 mm thick) can be scanned with optional MEDICAL SLIDE HOLDER FH-G1
Additional equipment
- Slide feeder SF-210
- Strip film holder FH-3
- Medical slide holder FH-G1
Digitizing server infrastructure
Digitization workstation - computer hardware and software
- Intel Core i3-2310M 2.10 GHz
- 3.1 GB RAM
- 500 GB hard disk
- 1428 MB Graphic Card
- MS Windows 7
- Adobe Photoshop CS4
- MySQL database + phpMyAdmin
- Silverfast AI + HDRStudio
Storage server and backup
- CIFS share on DualHead NAS (on EMC Celerra NS120 80TB)
- Backup via NDM protocol to LTO5 tape library (Dell ML6000)
Image server (publishing the tif files for the WWW)
- shared resource BGBM see Image server (publishing the tif files for the WWW)
Digitizing workflow
- Specimen data inserted/extended in MySQL database
- Dia slides are scanned via Nikon Coolscan 5000 and Silverfast
- Image saved as an uncompressed tiff file with ~ 100 MB, internal accession numbers as filename
- Adjusting contrast and brightness, further processing e.g. dust and scratch removal if required
- Image saved as a compressed tiff file with ~ 50 MB for web publishing, internal accession numbers as filename
--Carola Söhngen 08:22, 20 June 2012 (CEST)
