Re: Lens compatibility in perspective (WAS: Re: D-ist blurb in "AmericanPhoto" magazine)

[Arnold Stark]

Well, the LX can use M42 lenses via the screw mount adapater. With this 
adapter, the LX can use all M42 lenses at all apertures, and the meter 
works at all apertures too. There is no such adapter for plain K-mount 
lenses for the *ist D to achieve the same functionality. However, the 
*ist D works almost as well with M42 lenses as does the LX. Can you 
explain to me why the *ist D (in aperture priority mode) meters at all 
apertures with M42 lenses but not with plain k-mount lenses? Maybe I 
should replace some of my k-mount classics by the equivalent SMC 
Takumars as those are more up-to-date?

Arnold

Pål Jensen schrieb:

Arnold wrote:

It would have been better not to have added your two sentences because they simply and absolutely are not true. I, for example, am in the market for a new Pentax DSLR, and I only WILL try to get such a camera in a yard sale or at Ebay for 20% of retail, if it won't have better backwards compatibilty than the pre-production models that we have seen. I only spend real money on new products when they are convincing and not unneccessarily devalued.

REPLY:

It IS true. You are just an exception. 
The funny thing is that the *ist D has better compatibility than the LX had when released. The LX was only fully compatible with 5 year old lenses compared to the *ist D 20 year! The LX was compatible with future lenses and I expect the *ist D to be as well. The LX didn't have the selection of compatible lenses when new as the *ist D has. Still, people bought it anyway! 

Pål