mtf data in older Pentax lenses

adwb · 11-15-2009, 12:28 PM

Is there embeded mtf data in older A series Pentax lenses that is read by the program line or is it only in the newer lenses?
Alistair

troyz · 11-15-2009, 12:34 PM

Nope -- there's no embedded electronics at all in a KA mount -- just a pattern of contacts indicating min and max aperture.

11-15-2009, 12:28 PM	#1
adwb Veteran Member Join Date: Sep 2009 Location: Bristol UK Photos: Gallery Posts: 1,636	mtf data in older Pentax lenses Is there embeded mtf data in older A series Pentax lenses that is read by the program line or is it only in the newer lenses? Alistair

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11-15-2009, 12:34 PM	#2
troyz Veteran Member Join Date: May 2008 Posts: 389	Nope -- there's no embedded electronics at all in a KA mount -- just a pattern of contacts indicating min and max aperture.