http://www.jsinteractive.com/sensor/products.htm

value for money??

A think they are a little expensive, especially for F2. You can buy F1.2 to F1.4 lenses on ebay for between $200 - $300 each and put gears on them through a few suppliers selling them online.

Not bad though for a one-stop-shop to save you the hassles of doing all the work and finding yourself. They appear very professional and knowledgable with 35mm adapters. They also say on their site that F1.4 is available at additional expense.

I would like to see a F1.2 package for the same price but to my knowledge the only F1.2 by Nikon is the 55mm lens. The 24mm is F2, 35mm & 85mm was F1.4.

I just noticed on their homepage:
"Faster primes are available, f 1.4s , at additional expense and depending on manufacturer, may not be available as a full set."

I think the best thing is the smooth aperture ring... but these lenses are still going to breath, so they're not really worth it.