Sigma 8mm F4 Fisheye EX Circular
| mount: | A-mount |
|---|---|
| prod. code: | 483-205 |
| EAN/UPC: | data needed |
| makernote ID: | 25781 |
| format: | Full frame |
| release year: | 1999 |
| status: | Discontinued |
| specification | |
| D type lens: | No |
| SLT compatible: | Read this! |
| AF Drive: | In Body |
| focus design: | |
| stabilisation: | No |
| weather sealing: | No |
| AF-D (a99 only): | No |
| max. aperture: | 4 |
| min. aperture: | 32 |
| focal range(mm): | 8 |
| elements/group: | 10/6 |
| angle of view: | 180 |
| aperture blades: | 5 |
| min. focus distance(mm): | 200 |
| filter rotate focusing: | No |
| max. magnification: | 0.072x (1/13.9) |
| filter diameter(mm): | Rear slip-in gelatin |
| hood: | |
| color: | black |
| length(mm): | 61.8 |
| weight(g): | 320 |
| standard accessories: | data needed |
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8mm F4 Fisheye EX Circular
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8mm F4 Fisheye EX Circular
manufacturer description
Sigma 8mm F4 AF EX Circular Fisheye Lens
The 8mm F4 EX autofocus lens produces a circular fisheye image on film which gives a 180° view in all directions. This type of lens was originally designed to photograph the entire sky but can also be amalgamated into various scientific instruments including flight simulators. It is also well suited for use with QTVR and other Internet virtual reality techniques. There is a small but important demand for this lens in the research departments of many academic and commercial organisations. As budgets become ever tighter this lens at £599.95, is a very attractive alternative to OEM lenses.