Barlowlins Fluorit Flatfield Converter (FFC) 2"/T2

- fully coated apochromatic lens system

- 10 times higher line resolution as the world's best projection eyepieces

- 90mm image field for medium format cameras

The multiplying factor can be adjusted between 3X and 8X, depending on the projection distance used. The design focuses on the four times increase in the focal length. A completely sharp image is available at a 90mm image size. The on-axis sharpness, also at extensions of 15X, is only limited by the optics of the telescope itself.

In order that the FFC works perfectly at all magnifications, it is necessary to keep a predefined distance to the original primary focus.