Sigma 1000mm F8 APO
Launched September 1988, February 1989/1992
One of Sigma’s classic lenses, and rarely seen, the 1000mm F8 APO cost nearly Â£3000 in 1992. It’s hard to work out if this covers two lenses, as it appears to have been announced at Photokina 1988 but then re-announced in February 1989, before a 1992 press release which seems to give different specifications but an otherwise identical description.
Sigma Apochromatic Ultra Telephoto 1000mm F8.0 for Nikon, Canon Manual Focus (1988/9 states “all M.F”) S.L.R cameras, Nikon AF cameras, Minolta AF cameras and Canon AF cameras.
As a 1000mm F8 ultra-telephoto lens, this lens is the world’s first AF lens (of this focal length?). Also, it is designed as the world’s smallest in its class, having a telephoto ratio of 0.58 for ease of operate (sic). Since it incorporates an inner focusing mechanism, it is realized a quick focus Super Ultra telephoto. To minimized chromatic aberration, which is the inherent problem of ultra-telephoto, this lens is using two large elements of ultra low dispersion glass in the front group.
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|Lens Construction||11 Elements in 10 Groups|
|Field of View||2.6°|
|Minimum Focus Distance||15m|
|Filter Size||34mm (rear), 137mm (front)|
|Diameter||154mm (146mm 1989)|
|Weight||5150g (1992) 4400g (1989)|
|SRP at launch:||TBA MF|
|Available Mounts:||AF: Minolta, Nikon, Canon
MF: Nikon, Canon (1992)
MF: All (1989)