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DPanakkal7 · 06-20-2020, 11:05 PM

How do I resolve / repair the aperture block failure issue? I live in Los Angeles

Adam · 06-20-2020, 11:19 PM - **2 Likes**

Originally posted by DPanakkal7

How do I resolve / repair the aperture block failure issue? I live in Los Angeles

If you'd like to get it repaired, here is info on how to send it in to the Pentax repair center:
Pentax Repair Facilities (Wordwide listing) - PentaxForums.com

Or, if you'd like to do it yourself, here are detailed instructions:
Tutorial/Repair Pentax K-70 with aperture-problem: Exchange solenoid - PentaxForums.com

**suraswami** · 06-21-2020, 11:11 AM - **1 Like**

I wish Pentax would have invested extra $.10 to address this issue before the release of K70. Almost 3 years now, my K50 still going strong after the surgery!! This is my travel buddy along with the 40mm XS lens. Would love to have the flippy screen of K70.

**NS_Sailor** · 09-06-2020, 06:42 AM

Just got mine back after the saame failure. Besides the Aperture Block there was also a failed resistor, I'm unsure if the resistor failed because of or caused the Aperture Block failure

reh321 · 09-06-2020, 08:24 AM - **1 Like**

Originally posted by suraswami

I wish Pentax would have invested extra $.10 to address this issue before the release of K70. Almost 3 years now, my K50 still going strong after the surgery!! This is my travel buddy along with the 40mm XS lens. Would love to have the flippy screen of K70.

How are they to address it?
The company which manufactures their solenoids moved all production to China.
The "non-Chinese" 'white' solenoids are not available in volume at any price.

I think the best 'fix' is to use a different mechanism - the stepper motor used in the KP, as well as in their 'flagship' cameras - but that seems to cost a tad more than $.10.
Purchase a KP, and you will have your flippy screen.

reh321 · 09-06-2020, 08:39 AM

Originally posted by Adam

If you'd like to get it repaired, here is info on how to send it in to the Pentax repair center:
Pentax Repair Facilities (Wordwide listing) - PentaxForums.com

Or, if you'd like to do it yourself, here are detailed instructions:
Tutorial/Repair Pentax K-70 with aperture-problem: Exchange solenoid - PentaxForums.com

or the OP can get aperture-ring equipped lenses and control aperture "the old fashioned way" from the lens and use "green button" metering, as I did by getting an FA 28-105 lens.

06-20-2020, 11:05 PM	#1
DPanakkal7 Guest	K70 aperture block failure How do I resolve / repair the aperture block failure issue? I live in Los Angeles

06-20-2020, 11:19 PM - 2 Likes	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,609	Originally posted by DPanakkal7 How do I resolve / repair the aperture block failure issue? I live in Los Angeles If you'd like to get it repaired, here is info on how to send it in to the Pentax repair center: Pentax Repair Facilities (Wordwide listing) - PentaxForums.com Or, if you'd like to do it yourself, here are detailed instructions: Tutorial/Repair Pentax K-70 with aperture-problem: Exchange solenoid - PentaxForums.com Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

09-06-2020, 08:24 AM - 1 Like	#5
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,186	Originally posted by suraswami I wish Pentax would have invested extra $.10 to address this issue before the release of K70. Almost 3 years now, my K50 still going strong after the surgery!! This is my travel buddy along with the 40mm XS lens. Would love to have the flippy screen of K70. How are they to address it? The company which manufactures their solenoids moved all production to China. The "non-Chinese" 'white' solenoids are not available in volume at any price. I think the best 'fix' is to use a different mechanism - the stepper motor used in the KP, as well as in their 'flagship' cameras - but that seems to cost a tad more than $.10. Purchase a KP, and you will have your flippy screen. Last edited by reh321; 09-06-2020 at 08:36 AM.

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06-21-2020, 11:11 AM - 1 Like	#3
suraswami Site Supporter Join Date: Jun 2015 Photos: Gallery \| Albums Posts: 419	I wish Pentax would have invested extra $.10 to address this issue before the release of K70. Almost 3 years now, my K50 still going strong after the surgery!! This is my travel buddy along with the 40mm XS lens. Would love to have the flippy screen of K70.

09-06-2020, 06:42 AM	#4
NS_Sailor Loyal Site Supporter Join Date: Apr 2012 Location: Dartmouth Nova Scotia Canada Photos: Gallery \| Albums Posts: 1,020	Just got mine back after the saame failure. Besides the Aperture Block there was also a failed resistor, I'm unsure if the resistor failed because of or caused the Aperture Block failure

09-06-2020, 08:39 AM	#6
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,186	Originally posted by Adam If you'd like to get it repaired, here is info on how to send it in to the Pentax repair center: Pentax Repair Facilities (Wordwide listing) - PentaxForums.com Or, if you'd like to do it yourself, here are detailed instructions: Tutorial/Repair Pentax K-70 with aperture-problem: Exchange solenoid - PentaxForums.com or the OP can get aperture-ring equipped lenses and control aperture "the old fashioned way" from the lens and use "green button" metering, as I did by getting an FA 28-105 lens.

K70 aperture block failure

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