I have several M42 screwmount Pentax Takumar lenses (Super-Taks and SMCs) that I use with my Spotmatics. However, I would love to use these manual lenses on my Canon EOS Elan 7E. Ive read about the metering issues common to this body, and sure enough, my Elan 7E is off by 3+ stops (and not linearly across apertures) if not electrically coupled to an EF lens. Ive searched through several photo sites and while there are lots of people using standard M42-EOS adaptors, I havent come across any discussions about the newer (?) adaptors that are supposed to correct this problem. Does anyone have experience with using on an Elan 7/7E/EOS 30 the M42-EOS adaptors that have EF emulator chips? Did it fix the metering defects on this particular body? If youve had success, I would also appreciate knowing which brand/seller youre using (there are several available). I usually shoot in manual, so the stop down function of an adaptor isnt a problem; Id just like to be able to meter accurately with these lenses. Thanks for any info.