Reflex Lenses

Camera Dealers Mifsuds in Devon a re advertising two Pentax reflex lenses i.e. the 400-600 zoom and the 1000mm. See http://www.mifsuds.com/acatalog/Used-Pentax-MF-Lenses.html I can vouch for the quality that is possible with the former but not the latter

Seem a bit pricey seen the 400-600 go for £150.00 with the filters,case,box and hood.