Pentax Takumar 55mm 1:2.0 on GFX 50S at wide open aperture.
The 55mm 2.0 Takumar actually has a fixed f/2 aperture. You can turn the aperture ring one step further to 1.8, but there is an aperture ring in front of the blades that limits the opening to 2.0. This was probably done to improve the quality.Pentax Takumar 55mm 1:2.0 on GFX 50S at wide open aperture.
The 55mm 2.0 Takumar actually has a fixed f/2 aperture. You can turn the aperture ring one step further to 1.8, but there is an aperture ring in front of the blades that limits the opening to 2.0. This was probably done to improve the quality.Pentax Takumar 55mm 1:2,0 an GFX 50S bei Offenblende.
Das 55er 2,0 Takumar hat aber eigentlich eine 2er "Zwangsblende". Man kann den Blendenring noch eine Stufe weiter aufdrehen, also auf 1,8, es sitzt aber ein Blendenring vor den Blendenlamellen der die Öffnung auf 2,0 begrenzt. Das machte man vermutlich um die Qualität zu verbessern.
Pentax Takumar 55mm 1:2.0Pentax Takumar 55mm 1:2.0Pentax Takumar 55mm 1:2,0
Pentax Takumar 55mm 1:2.0 on GFX 50S at wide open aperture.The 55mm 2.0 Takumar actually has a fixed f/2 aperture. You can turn the aperture ring one step further to 1.8, but there is an aperture ring in front of the blades that limits the opening to 2.0. This was probably done to improve the quality.Pentax Takumar 55mm 1:2.0 on GFX 50S at wide open aperture.
The 55mm 2.0 Takumar actually has a fixed f/2 aperture. You can turn the aperture ring one step further to 1.8, but there is an aperture ring in front of the blades that limits the opening to 2.0. This was probably done to improve the quality.Pentax Takumar 55mm 1:2,0 an GFX 50S bei Offenblende.
Das 55er 2,0 Takumar hat aber eigentlich eine 2er "Zwangsblende". Man kann den Blendenring noch eine Stufe weiter aufdrehen, also auf 1,8, es sitzt aber ein Blendenring vor den Blendenlamellen der die Öffnung auf 2,0 begrenzt. Das machte man vermutlich um die Qualität zu verbessern.