-0.96 mm
Space for the adapter
44.50 mm
Sony / Minolta A-mount flange
45.46 mm
Pentax K flange
Verdict: No infinity focus — the Sony / Minolta A-mount flange is 1.0 mm shorter than the body's, so an adapter would need corrective glass.
What to expect#
Adapters with an optical element exist for some combinations, but they reduce image quality. A glass-free adapter in this direction only works for macro/close focus.
Sony / Minolta A-mount lenses you could adapt#
- Laowa 12mm f/2.8 Zero-D
- Laowa 15mm F/4 Wide Angle Macro
- Laowa 60mm f/2.8 2X Ultra-Macro
- Samyang 10mm f/2.8 ED AS NCS CS
- Samyang 135mm f/2 ED UMC
- Samyang 14mm f/2.8 AE ED AS IF UMC
- Samyang 16mm f/2.0 ED AS UMC CS
- Samyang 20mm f/1.8 ED AS UMC
- Samyang 24mm f/1.4 ED AS IF UMC
- Samyang 85mm f/1.4 IF UMC Aspherical
- Samyang 8mm f/3.5 Fish-Eye CS
- Samyang T-S 24mm f/3.5 ED AS UMC
- Sigma 10-20mm f/3.5 EX DC HSM
- Sigma 10-20mm f/4-5.6 EX DC
- Sigma 100-300mm f/4 APO EX DG HSM
- Sigma 100-300mm f/4 APO EX DG HSM + Kenko Teleplus PRO 300 AF 1.4× DGX ext.
- Sigma 105mm f/2.8 EX DG OS HSM Macro
- Sigma 10mm f/2.8 EX DC Fisheye HSM
Pentax K cameras#
- Ricoh Pentax KF 2022
- Ricoh Pentax K-3 Mark III 2021
- Pentax K-1 II 2018
- Ricoh Pentax KP 2017
- Ricoh Pentax K-1 2016
- Ricoh Pentax K-70 2016
- Ricoh Pentax K-3 II 2015
- Pentax K-3 2013
- Pentax K-50 2013
- Pentax K-01 2012
- Pentax K-5 II 2012
- Pentax K-30 2012
- Pentax K-5 IIs 2012
- Pentax K-5 2010
- Pentax K-r 2010
- Pentax K-x 2010
- Pentax K200D 2008
- Pentax K20D 2008
Other systems for Sony / Minolta A-mount lenses#
Frequently asked questions#
Will Sony / Minolta A-mount lenses autofocus on Pentax K?
This adapter direction is not practical.
Does a Sony / Minolta A-mount to Pentax K adapter affect image quality?
Any adapter that restores infinity focus here needs a corrective lens, which typically lowers sharpness and adds a slight teleconverter effect.
Last updated October 03, 2026 · How we calculate · Sources