Originally posted by normhead Whatever. I
I'm not buy it, any of it.
It's Pentax's job to make sure their lenses work with their lenses, parasites like Sigma should be bending over backwards to fit in.
Bottom line. Pentax didn't do anything that messed up even one of their lenses. How is it they could do that and Sigma couldn't?
Pentax had nothing to do with this. They give Sigma all the information they pay for. If Sigma chooses to reverse engineer, everything is on them.
Are you serious?
parasites...?
I'm a long time Pentax fan, 6x7 and LX, plus all the rest, since 1979.
I'm not a fanboy, though.
Present time Sigma lenses, especially high end ones, are awesome, and i'm very unhappy to see the latest Art releases not available in PKAF mount.
Let's be honest, long time ago people used to buy Asahi Pentax because of Takumar or SMC Pentax glasses.
I bought my K-1 because it's a wonderful camera body, with a very high price/performance ratio. Not because of the current lens line-up, sorry to say that, but it's true.
Having said all that, Sigma reverse engineers the data communication with the camera body, not the PK mount spec.
There is no proprietary standard, and no specs regarding the room around the mount itself, as already explained.
I just repaired an old Sigma AF zoom (an EX DF!). The spare part was readily available and i had the lens back in ONE working day!
Two other zooms, warranty long expired, were software updated and had the bayonet adjusted/replaced. For free! (including shipment).
The same zooms worked fine with previous Pentax bodies, and were released LONG BEFORE Pentax introduced the K-1.
BTW, the problem is not the scratch, it's the firmware.
Kudos to Sigma.
Should i remind you of all the SDM motor that died just after the warranty expired...?
Let's be balanced, com'on
cheers
Paolo