Hello,

I have a 260 mm Nikkor process lens which has a strange bulbuous design to it (b ig hemispherical lens elements that protrude way out the barrel front and rear) and whose image circle exceeds anything I can subject it to on my 8x10. Is ther e any way to test image circle without building a camera around the thing? I am curious to know if it will cover 8x20 but do not want to construct an 8x20 came ra to answer this question if there is an easier way. Thanks.