The 250 Tele Xenar is a compact tele lens for 5x4" use, and needs under 200m of extension for infinity focusing; this makes it particularly suitable with field cameras.
Optical Construction - 5 elements in 5 groups
Image Circle at infinity - 190mm @ f22 - covers up to 5x4"
This allows shift of up to 26mm vertically and 22mm horizontally on 5x4"
Filter Size - 82mm
Weight - 692g
Flange to focal distance at infinity: 195mm [vs approx 250mm for a conventional 250mm]
|Lens Focus Mechanism||None|
|Lens Image Stabilization||No|
|Adaptor Ring / Lens Filter Thread||N/A|