Pentax AF160FC - Manual (Page 37)

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The flash head can be mounted on the following lenses using the adapter ring, but there may be some problems when using them.
Basically, a lens cannot be used if the front ring turns during focusing.
Lenses with compatibility issues
For DA lenses + digital SLR cameras Front ring turns Description of problem
smc PENTAX-DA 16-45mm F4 ED AL - Vignetting occurs (from 16-24 mm)
smc PENTAX-DA 18-55mm F3.5-5.6 AL - Vignetting occurs (from 18-23 mm)
smc PENTAX-DA 18-55mm F3.5-5.6 AL II - Vignetting occurs (from 18-21 mm)
smc PENTAX-DA 40mm F2.8 Limited - Interference between flash head and camera
smc PENTAX-DA 17-70mm F4 AL[IF] SDM - Vignetting occurs (from 17-50 mm)
smc PENTAX-DA  50-135mmF2.8 ED[IF] SDM - Vignetting occurs (from 50-90 mm)
For FA & FAJ lenses + digital SLR cameras Front ring turns Description of problem
smc PENTAX-FA 20mmF2.8 - Slight vignetting
smc PENTAX-FA  24mmF2 AL(IF) - Focus mechanism is unstable
smc PENTAX-FA MACRO 50mmF2.8 - Focus mechanism is unstable
smc PENTAX-FA MACRO 100mmF3.5 - Focus mechanism is unstable
smc PENTAX-FA 20-35mmF4 AL - Vignetting occurs (from 20-23 mm)
smc PENTAX-FA 24-90mmF3.5-4.5 AL(IF) - Vignetting occurs (around 24 mm)
smc PENTAX-FA  28-70mmF2.8 AL N Vignetting occurs (around 28 mm)
smc PENTAX-FA 28-70mmF4 AL N
smc PENTAX-FA 28-80mmF3.5-4.7 N Focus mechanism is unstable
smc PENTAX-FA 28-80mmF3.5-5.6 N Focus mechanism is unstable
smc PENTAX-FA 28-90mmF3.5-5.6 N
smc PENTAX-FA 28-105mmF4-5.6 N Focus mechanism is unstable
smc PENTAX-FA 35-80mmF4-5.6 N Focus mechanism is unstable
smc PENTAX-FA 70-200mmF4-5.6 N Focus mechanism is unstable
smc PENTAX-FA 80-200mmF4.7-5.6 N Focus mechanism is unstable
smc PENTAX-FA 80-320mmF4.5-5.6 N
smc PENTAX-FA 100-300mmF4.7-5.8 N
smc PENTAX-FA 100-300mmF4.5-5.6 N
smc PENTAX-FAJ 28-80mmF3.5-5.6 AL N
smc PENTAX-FAJ 75-300mmF4.5-5.8 AL N
smc PENTAX-FAJ 18-35mmF4.0-5.6 AL - Vignetting occurs (from 18-20 mm)
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AF160FC.book Page 36 Monday, November 17, 2008 10:43 AM