It adds a maximum of one stop to the original lens's aperture, allowing for a faster and more precise focus.
Hersmay PK645-NIKKOR Z Lens Mount Adapter Compatible with Pentax 645 (PK645) Lens to Fit For Nikon Z Mount Z5 Z6 Z7 Z50 Mirrorless Camera Body
FOTGA M645-NZ Lens Mount Adapter for Mamiya 645 M645 Lens to Nikon Z Mount Z5 Z6 Z7 Z50 Z6II Z7II Z9 Zfc Mirrorless Camera Body
[Mint] SMC Pentax-A 645 200mm f/4 MF Telephoto Lens for 645 N NII #2 from Japan
[MINT w/ Caps] smc Pentax A 645 120mm f/4 Macro MF Lens For 645 N NII From JAPAN
[ NEAR MINT w/Case ] Pentax 645 SMC A 45mm F2.8 Wide Angle Lens 645 N NII JAPAN
[MINT] SMC Pentax-A 645 80-160mm f/4.5 Zoom MF Lens for 645 645N NII From JAPAN
![[Mint] SMC Pentax-A 645 200mm f/4 MF Telephoto Lens for 645 N NII #2 from Japan](https://images.buynet.work/thumb.php?i=385977990&s=240)
![[MINT w/ Caps] smc Pentax A 645 120mm f/4 Macro MF Lens For 645 N NII From JAPAN](https://images.buynet.work/thumb.php?i=388801911&s=240)
![[ NEAR MINT w/Case ] Pentax 645 SMC A 45mm F2.8 Wide Angle Lens 645 N NII JAPAN](https://images.buynet.work/thumb.php?i=388802033&s=240)
![[MINT] SMC Pentax-A 645 80-160mm f/4.5 Zoom MF Lens for 645 645N NII From JAPAN](https://images.buynet.work/thumb.php?i=389823480&s=240)