| Author | Message | ||
     Rick_oleson Tinkerer Username: Rick_oleson Post Number: 895 Registered: 07-2006 Rating: N/A |
It should be fine to adjust the front element. Unless the front standard has been bent, the most likely cause of it being off focus in the first place would be that someone had worked on it at some time in the past and didn't get it back quite at the correct position. The focus helical is robust and will not change over time, and the distance settings will have been correctly engraved at the factory. If you get it correct at any one setting, it will be correct at all of them, you need only adjust once. Infinity is the easiest point to establish with complete certainty, that's why I adjust to infinity rather than at some closer point that would be subject to measurement errors etc. |