Lenses With Compatibility Issues - Pentax AF160FC Operating Manual

Lenses with compatibility issues

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.
For DA lenses + digital SLR cameras
smc PENTAX-DA 16-45mm F4 ED AL
smc PENTAX-DA 18-55mm F3.5-5.6 AL
smc PENTAX-DA 18-55mm F3.5-5.6 AL
smc PENTAX-DA 40mm F2.8 Limited
smc PENTAX-DA 17-70mm F4 AL[IF] SDM
smc PENTAX-DA 50-135mmF2.8 ED[IF] SDM
For FA & FAJ lenses + digital SLR cameras
smc PENTAX-FA 20mmF2.8
smc PENTAX-FA 24mmF2 AL(IF)
smc PENTAX-FA MACRO 50mmF2.8
4
smc PENTAX-FA MACRO 100mmF3.5
smc PENTAX-FA 20-35mmF4 AL
smc PENTAX-FA 24-90mmF3.5-4.5 AL(IF)
smc PENTAX-FA 28-70mmF2.8 AL
smc PENTAX-FA 28-70mmF4 AL
smc PENTAX-FA 28-80mmF3.5-4.7
smc PENTAX-FA 28-80mmF3.5-5.6
smc PENTAX-FA 28-90mmF3.5-5.6
smc PENTAX-FA 28-105mmF4-5.6
smc PENTAX-FA 35-80mmF4-5.6
smc PENTAX-FA 70-200mmF4-5.6
smc PENTAX-FA 80-200mmF4.7-5.6
smc PENTAX-FA 80-320mmF4.5-5.6
smc PENTAX-FA 100-300mmF4.7-5.8
smc PENTAX-FA 100-300mmF4.5-5.6
smc PENTAX-FAJ 28-80mmF3.5-5.6 AL
smc PENTAX-FAJ 75-300mmF4.5-5.8 AL
smc PENTAX-FAJ 18-35mmF4.0-5.6 AL
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Front ring turns
- Vignetting occurs (from 16-24 mm)
- Vignetting occurs (from 18-23 mm)
Vignetting occurs (from 18-21 mm)
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- Interference between flash head and camera
- Vignetting occurs (from 17-50 mm)
- Vignetting occurs (from 50-90 mm)
Front ring turns
- Slight vignetting
Focus mechanism is unstable
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- Focus mechanism is unstable
- Focus mechanism is unstable
- Vignetting occurs (from 20-23 mm)
- Vignetting occurs (around 24 mm)
○ Vignetting occurs (around 28 mm)
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Focus mechanism is unstable
○
Focus mechanism is unstable
○
○
○ Focus mechanism is unstable
○ Focus mechanism is unstable
Focus mechanism is unstable
○
Focus mechanism is unstable
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○
○
○
○
○
Vignetting occurs (from 18-20 mm)
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Description of problem
Description of problem