Pentax K-7 Operating Manual page 56

Depending onthelensusedwiththe/_'-7, evenifa lenswithout a hood
is attached, theuseofthebuilt-in flashmaynotbepossible o r maybe
limited duetovignetting.
DA,DAL,DFA,FAJ,andFAlenses notlistedbelow canbeusedwithout
problems.
* Following a reevaluated w ithout a hood.
Unavailable due to vignetting
Lens name
DA FISH-EYE 10-17mm F3.5-4.5ED (IF)
DA12-24mm F4ED AL
DA14mm F2.8ED (IF)
FA*300mm F2.8ED (IF)
FA*600mm F4ED (IF)
FA*250-600mm F5.6ED (IF)
Available depending on other factors
Lens name I Restrictions
F FISH-EYE 17-28mm F3.5-4.5 Vignetting may occur if focal length is less than
20 mm.
When the focal length is less than 28 mm or
DA16-45mm F4ED AL when the focal length is 28 mm and the shooting
distance is 1 m or less, vignetting may occur.
When the focal length is 20 mm or less or when
the focal length is 35 mm and the shooting
DA* 16-50mm F2.8ED AL (IF) SDM
distance is less than 1.5 m, vignetting may
occur.
When the focal length is less than 24 mm or
DA17-70mm F4AL (IF) SDM when the focal length is 24 mm and the shooting
distance is 1 m or less, vignetting may occur.
Vignetting may occur if the focal length is less
DA18-250mm F3.5-6.3ED AL (IF) than 35 mm.
FA*28-70mm F2.8AL Vignetting may occur if focal length is 28 mm
and the shooting distance is less than 1 m.
FA SOFT 28mm F2.8 Built-in flash always discharges fully.
FA SOFT 85mm F2.8 Built-in flash always discharges fully.