> as lemmas
retrofocus
retrofocus adj.
Brit. 
/ˌrɛtrəʊˈfəʊkəs/
, /ˌrɛtrəʊˈfəʊkəs/U.S. /ˌrɛtroʊˈfoʊkəs/
Photography designating a lens in which the distance from the back of the rear lens to the image plane (the back focus) is greater than the focal length of the lens, so allowing space for a reflex mirror or prism.Retrofocus lenses are typically designed as inverted telephoto lenses, with the negative element placed before the positive one instead of after it./ˌrɛtroʊˈfoʊkəs/ΘΚΠ
society > leisure > the arts > visual arts > photography > action of taking photograph > technical factors > [adjective] > types of focusing
hyperfocal1905
retrofocus1951
1951 Jrnl. Criminal Law 42 419 High speed, large aperture, wide angle and short focal length are combined in the Retrofocus, F. 2.5, 35 mm lens manufactured by Pierre Angenieux in France.
1977 J. Hedgecoe Photographer's Handbk. 323 In wide-angle, retro-focus constructions the back focus is much greater than the focal length which allows room for mirrors etc. within the camera construction.
2004 E. Wildi Hasselblad Man. (ed. 6) xiv. 226 Wide-angle lenses on SLR cameras must have the retrofocus design.
<
as lemmas
- hare'sfoot sedge
- hare'sfoot trefoil
- hare'smeat
- hare'stail
- hare'stail rush
- hare'stooth
- hare-back
- hare-bottle
- hare-brain
- hare-brained
- hare-brainedly
- hare-brainedness
- hare-bur
- hare-catcher
- hare-chase
- hare-cop
- hare-coursing
- hare-drive
- hare-eyed
- hare-finder
- hare-flesh
- hare-foot
- hare-hearted
- hare-hound
- hare-hunter