Sony 70-200 lens confused

[Tinopener]

Hi every one the lens arrived today every instruction pamphlet except one in English .. Question the aperture ring on the lens do I leave it on A and what does the iris lock do is that more for videoing .... Be grateful for any comments ,,, Thank you Gary

 

[Tinopener]

Perfect sense ..I had an slight idea it was something like that but wasn't to sure ...Thank you

 

[iamdlewis]

Sony does have all of their manuals available online:

https://www.sony.com/electronics/support/lenses-e-mount-lenses/sel70200gm2#manuals