Another vote for APS, but if you have them do the work, be sure to tell them that you want infinity to remain at infinity. When I last sent them a MF lens they set infinity to about 30 feet and told me that was to help the autofocus grab at infinity when using the green dot manual focus method. Not so good for me because I scale focus on film cameras a lot. They set it back right for me, but said I should warn them in the future to keep it as it was when it came in.