Refractor Collimation

Hello Everyone.

I have a question. Will miss-collimation introduce false color in a triplet refractor?

I have a triplet that is not collimated properly and I do see false color. I’ve not really collimated a refractor so before I begin I wanted to see if the level of false color will be reduced as I bring the scope into collimation.

Also, any insight into collimating a refractor would be greatly appreciated.

Thanks.

Joe

Joe: I am not the one to comment on the topic but if you provided the information about the scope, ie make and model, you could get not only generalized information but specific information about your scope.

Not all triplets are APO.

Jon

Hi Joe,

Collimation is not too difficult depending on the physical arrangement of your scope. If it has the usual three sets of push-pull screws on the lens cell and you own or have access to a Cheshire collimation tool we can walk you through the process. I have collimated or checked collimation on every refractor I have owned from achromats the my current TMB 175mm triplet. It is pretty easy if you are careful and even easier if you have an assistant.

On the color issue, better optical minds than mine will have to weigh in. We have several who read these posts and I trust one will be along shortly.

Feel free to contact me on my home e-mail:

[email protected]

Larry