I have a thin adapter from M42 to Nikon F made by Pixco (as sold on Ebay, random example). The Nikon-compatible AF confirm chip glued to the adapter does not work anymore due to a broken pin. As a replacement, I already have a Pixco chip that came loose from another adapter, or a (slightly smaller) Dandelion chip.

What is the best method to remove and replace the chip, besides buying a new adapter?

Is there a different procedure to remove the chip from a lens?

  • \$\begingroup\$ I love how they call it a 'macro' adapter… meaning it won't focus to infinity. You know you can get M42s correctly modded to infinity for about $£€ 50? Just switch the camera to fully manual & the AF confirmation light works just fine, you just have no light metering because it can't read the aperture. \$\endgroup\$
    – Tetsujin
    Commented Jul 31, 2021 at 15:16
  • 1
    \$\begingroup\$ @Tetsujin: Yes, I have a modified Helios 44-3, so infinity is no problem here. I'm used to focus manually from the old days before AF, the chips are mostly for metering. \$\endgroup\$
    – user24582
    Commented Jul 31, 2021 at 15:37
  • 1
    \$\begingroup\$ Depends on how it's fastened. I'm assuming it's glued in. I'd start with a heat gun and see if that works. \$\endgroup\$
    – dgatwood
    Commented Jul 31, 2021 at 22:00
  • \$\begingroup\$ @dgatwood It looks like normal glue, not superglue. I'll try the temperature route on the weekend. \$\endgroup\$
    – user24582
    Commented Aug 4, 2021 at 6:22


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