I am very happy with the Leica R version of the Speed Booster and am looking forward to the Nikon version. As I am used to manual focus lenses poor AF is a non-issue for me.
Vignetting is more severe for my very long Telyts. However for short tele and normal lenses the slight corner degradation of image quality doesn't really bother me for real world pictures. Of course one can easily see the degradation when pixel peeking.
It would be interesting to have as part of this review a look at wide angle lenses, such as 14 to 28 mm. I only have Nikon WA lenses and have to wait for the fitting Speed Booster version.
I prefer to process some images in ACR of CS6, Nikon's Capture NX 2 or Capture One. How would LR4 fit into this scenario as an organizing principle?
BradJudy: I haven't seen it mentioned much, but this technology can also be used to generate an image with essentially infinite depth of field, rather than choosing a particular focus point and using a conventional depth of field. That's how it's used in industry (and why it was developed in the first place) to create very large depth of field without super small apertures (and thus long exposures).
That's right. My understanding is one needs the full version of the software on a personal computer for this.