Quote:
Originally Posted by oska
The least expensive question you can answer yourself: take a shortish (30s?) exposure of a reasonable starfield and look at the star shapes in corners and centre. Stars will be elongated in the corners and tight in the centre if you need a flattener. Please post your results I'm keen to learn whatever I can  |
You make an excellent point, and it's not a bad way to find out an answer to the question. I should have thought of that myself.
And don't worry - the photographic side of this is new to me too.