Patent: Olympus 12-40mm f/2.8!

As I told you weeks ago Olympus may introduce a contsant f/2.8 lens soon. Specs are yet unkown but Egami spotted a new Olympus patent that may describes exactly what’s coming. Basically the patent is about the sam lens but in two different variations:

1) 12-40mm f/2.8-40 lens:
39.100mm – f = 12.247 focal length
Fno 2.88 -. 4.08
31.11 ° – 2ω = 88.03 angle
BF 18.407 – 27.202mm
133.86mm – 136.25 Length
Mod 0.35m
15 sheets of 13 group lens configuration
Three six-sided aspherical
3 ED glass sheets

2) 12-40mm with constant f/2.8 aperture.
39.081mm – f = 12.249 focal length
Fno. 2.88
30.85 ° – 2ω = 85.27 angle
BF 16.194 – 16.192mm
131.16mm – 140.24 Length
Mod 0.35m
13 images in 11 groups lens configuration
5 three aspherical surface
3 ED glass sheets

That lens will be certainly weather sealed and a real competitor of the [shoplink 31225]Panasonic 12-35mm X lens[/shoplink].