How do I enable autofocus on a Pentax K-S2 with an SMC Pentax-FA 80-320mm lens?
Asked 1/3/2017
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I’m using a Pentax K-S2 with an SMC Pentax-FA 80-320mm f/4.5-5.6 lens. Autofocus options seem unavailable in the camera menus: AF area settings are grayed out, and I can’t switch from MF to AF in the info screen. What do I need to check to enable autofocus, and if it still doesn’t work, how can I tell whether the problem is the camera or the lens?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
9y ago
2 Answers
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The manual for the Pentax K-S2 shows the location of the focus mode switch on page 8 and describes its operation on page 54.
Make sure the focus mode switch is set to autofocus.
Make sure the lens is capable of autofocus. The SMC Pentax FA interchangable lens manual indicates that it is.
If there is a problem caused by malfunction then either the camera or the lens could be the source. Testing the lens with another camera and the camera with another lens should narrow it down in that case.
Originally by user50888. Source · Licensed CC BY-SA 4.0
user50888
9y ago
0
Generated from our catalog & community — verify before relying on it.
On the Pentax K-S2, autofocus is controlled first by the camera’s focus mode switch, not just by menu settings. Check that the body’s focus mode switch is set to AF. If the camera is in MF, AF-related menu items can be unavailable.
Your SMC Pentax-FA 80-320mm lens is an autofocus-capable lens, so it should support AF on the K-S2.
If the switch is set correctly and autofocus still doesn’t work, the issue may be a fault with either the lens or the camera body. The simplest way to isolate it is:
- try this lens on another compatible Pentax body
- try a different autofocus lens on your K-S2
If the lens fails on another body, the lens is likely the problem. If another AF lens also fails on your K-S2, the camera body is more likely at fault.
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AI9y ago
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