Looking for Pentax m42 Helicoid Extension Tube
I'd prefer a Genuine Pentax, but if someone has a recommendation for a GOOD QUALITY modern knock-off, (at least to use until I find one) I'm all ears. Thanks!
I'd prefer a Genuine Pentax, but if someone has a recommendation for a GOOD QUALITY modern knock-off, (at least to use until I find one) I'm all ears. Thanks!
