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cali92rs · 07-05-2013, 07:40 PM

I am using my 135mm SMC Takumar with a adapter glued on...
But for some reason the SR is greyed out as is the Insert Focal length option. I checked and its not on Bulb nor is the timer on.
My K-5 never had issues using this lens.
What am I missing?
Thanks.

**ramseybuckeye** · 07-05-2013, 07:47 PM - **1 Like**

Originally posted by cali92rs

I am using my 135mm SMC Takumar with a adapter glued on...
But for some reason the SR is greyed out as is the Insert Focal length option. I checked and its not on Bulb nor is the timer on.
My K-5 never had issues using this lens.
What am I missing?
Thanks.

Did you enable the use of the aperture ring (it's in the custom setting menu 4)? I m preety sure if you don't input the focal length SR cannot work.

Edit: Page 271 of the K-30 manual gives the reasons shake reduction will not work

cali92rs · 07-05-2013, 08:07 PM

Originally posted by ramseybuckeye

Did you enable the use of the aperture ring (it's in the custom setting menu 4)? I m preety sure if you don't input the focal length SR cannot work.

Edit: Page 271 of the K-30 manual gives the reasons shake reduction will not work

Awesome!
Thanks...forgot about that aperture ring setting

**ramseybuckeye** · 07-06-2013, 04:27 AM

Originally posted by cali92rs

Awesome!
Thanks...forgot about that aperture ring setting

I really don't understand why they default that to off.

cali92rs · 07-06-2013, 05:59 AM

Originally posted by ramseybuckeye

I really don't understand why they default that to off.

Is there even a reason to have that switched to disabled?

Paleo Pete · 07-06-2013, 06:03 AM

I don't understand why it's there at all. No need. Make it aperture ring capable to begin with, forget about the setting and you're good to go. Auto lenses still work either way so why is it there at all???

**JimJohnson** · 07-06-2013, 06:36 AM

Originally posted by Paleo Pete

I don't understand why it's there at all. No need. Make it aperture ring capable to begin with, forget about the setting and you're good to go. Auto lenses still work either way so why is it there at all???

I think it is done to reduce technical support calls and camera returns - basically protecting users from themselves. If you are using a lens in something other than an 'A' setting, there are other things the user has to do to get a correct exposure. If the camera won't release the shutter, you can't have a poor exposure, correct?

Personally, I short the 'A' pin on my camera and make my camera think every lens is in the 'A' position. If I am using a lens without 'A' capability, I am then responsible for any exposure adjustments between the body settings and lens settings. If I am, for example, using a M-series lens, I set both body and lens to the same aperture value, do a test shot, look at the histogram and add any necessary exposure compensation. If you use a non-A lens often enough, you don't even need the test shot. This also gives you access to automated exposure and flash functions that are otherwise not available.

Pentax isn't unique in this 'protect users from themselves' philosophy. Microsoft is notorious for the same practice.

07-05-2013, 07:40 PM	#1
cali92rs Veteran Member Join Date: May 2011 Location: Long Beach, CA Posts: 3,354	K-30 won't select SR I am using my 135mm SMC Takumar with a adapter glued on... But for some reason the SR is greyed out as is the Insert Focal length option. I checked and its not on Bulb nor is the timer on. My K-5 never had issues using this lens. What am I missing? Thanks.

07-05-2013, 07:47 PM - 1 Like	#2
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,296	Originally posted by cali92rs I am using my 135mm SMC Takumar with a adapter glued on... But for some reason the SR is greyed out as is the Insert Focal length option. I checked and its not on Bulb nor is the timer on. My K-5 never had issues using this lens. What am I missing? Thanks. Did you enable the use of the aperture ring (it's in the custom setting menu 4)? I m preety sure if you don't input the focal length SR cannot work. Edit: Page 271 of the K-30 manual gives the reasons shake reduction will not work Last edited by ramseybuckeye; 07-05-2013 at 07:57 PM.

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07-05-2013, 08:07 PM	#3
cali92rs Veteran Member Join Date: May 2011 Location: Long Beach, CA Posts: 3,354 Original Poster	Originally posted by ramseybuckeye Did you enable the use of the aperture ring (it's in the custom setting menu 4)? I m preety sure if you don't input the focal length SR cannot work. Edit: Page 271 of the K-30 manual gives the reasons shake reduction will not work Awesome! Thanks...forgot about that aperture ring setting

07-06-2013, 04:27 AM	#4
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,296	Originally posted by cali92rs Awesome! Thanks...forgot about that aperture ring setting I really don't understand why they default that to off.

07-06-2013, 05:59 AM	#5
cali92rs Veteran Member Join Date: May 2011 Location: Long Beach, CA Posts: 3,354 Original Poster	Originally posted by ramseybuckeye I really don't understand why they default that to off. Is there even a reason to have that switched to disabled?

07-06-2013, 06:03 AM	#6
Paleo Pete Veteran Member Join Date: Jun 2010 Location: Texas Photos: Gallery \| Albums Posts: 2,880	I don't understand why it's there at all. No need. Make it aperture ring capable to begin with, forget about the setting and you're good to go. Auto lenses still work either way so why is it there at all???

07-06-2013, 06:36 AM	#7
JimJohnson Loyal Site Supporter Join Date: Jan 2012 Location: Summer:Lake Superior - Michigan Winter:Texas Hill Country Photos: Gallery Posts: 2,774	Originally posted by Paleo Pete I don't understand why it's there at all. No need. Make it aperture ring capable to begin with, forget about the setting and you're good to go. Auto lenses still work either way so why is it there at all??? I think it is done to reduce technical support calls and camera returns - basically protecting users from themselves. If you are using a lens in something other than an 'A' setting, there are other things the user has to do to get a correct exposure. If the camera won't release the shutter, you can't have a poor exposure, correct? Personally, I short the 'A' pin on my camera and make my camera think every lens is in the 'A' position. If I am using a lens without 'A' capability, I am then responsible for any exposure adjustments between the body settings and lens settings. If I am, for example, using a M-series lens, I set both body and lens to the same aperture value, do a test shot, look at the histogram and add any necessary exposure compensation. If you use a non-A lens often enough, you don't even need the test shot. This also gives you access to automated exposure and flash functions that are otherwise not available. Pentax isn't unique in this 'protect users from themselves' philosophy. Microsoft is notorious for the same practice.

K-30 won't select SR

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