Sigma 12mm f8 and 8mm f5.6 (was: Sigma 8mm f4...)

[Andre Langevin]

Another lens worth considering is the older 12mm f8 fisheye made by 
Sigma and sold under various brand names like Accura, Spiratone, etc. 
145 degrees wide.

The image circle is 36mm. On a 35mm camera, the circle just hits the 
middle of the two horizontal limits of the film.  Plenty of covering 
for the *ist D as it needs less than 30mm.

They sell for under 100$ on eBay but don't get there often.  There 
was a 8mm f5.6 also, surprisingly cheaper than the 12mm when they 
were sold new.  But it's double the 12mm price on the used market.  I 
would better trust the 12mm optical quality.

Andre