Peter J. Alling wrote:
Which version K mount, original, M, A, F, FA or extra crispy?
Let's suppose the K-mount is the SMC Pentax 50mm f/1.4.
That design is the first K-mount offerring in that specification, which showed up before the M, A, F or any later K-mount lens, and as close as you can get to the last of the M42 screw mounts.
In which case there is _essentially_ no difference.
By essentially, I mean the K has the same number of lens elements, in the same design as the M-42 which preceded it.
The last 1.4 SMC Takumar was made in 1975, the first 1.4 SMC Pentax K-mount came out in '75.
The Tak has a minimum aperture of f/22, the K is f/16.
The Tak has a smaller filter ring (49mm) while the K has a larger one (52mm.)
So, are they the same lens, in detail? No. Same lens design ~ apparently so.
They ought to perform identically.
Is that what you had in mind when you asked the question?
keith whaley
Rebekah Gonzalez wrote:
okie dokie, say i have two lenses, both are made by pentax, both are 50mm 1.4, one is screw mount and the other is k mount. hypothetical situation in place, is there any difference other than the shape of the mount?
rg2
----- Original Message ----- From: "Peter J. Alling" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, December 30, 2004 12:26 AM
Subject: Re: screw mount huh?
I think I need more information before I attempt to answer this.
Rebekah Gonzalez wrote:is there any difference between screw mount and k mount lenses other than the mount?
rg2
