Pin Connectivity

K Bill · 12-13-2015, 01:59 PM

Hello, this is my first post. Just like talk radio, I am a long time listener, first time caller. Or in this case, a long time viewer, first time poster.

I purchased a lens from a friend that works perfectly on his Pentax DSLR Pentax K-10D however, it is not working correctly on my Pentax K-30., it will only work if I unlock it and turn it back a hair. Not sure why, but I do notice that 3 of the 5 little spring loaded contacts don't pop out as much as the other 2. The lens is a Sigma DG 70--300

Any ideas?

Thank you
Kirk

**Canada_Rockies** · 12-13-2015, 03:01 PM

First thing to do would be to clean those contacts. If they are only lightly touching, anything that impedes the data transfer would cause a failure.

**jatrax** · 12-13-2015, 03:36 PM

As noted above give the contacts a good cleaning, buff them with a microfiber cloth. Some third party lenses have mounts that are just a bit 'off'. In most cases there is no problem but rarely they can cause this issue.

Try cleaning the contacts first. If that does not work, double check that the mount on the lens is securely fastened. You might also slightly loosen the mount screws and try to rotate the mount a bit to see if you can align it better. But do that only if you feel comfortable working on a lens, and only loosen slightly do not remove the screws.

K Bill · 12-14-2015, 11:05 AM

Originally posted by Canada_Rockies

First thing to do would be to clean those contacts. If they are only lightly touching, anything that impedes the data transfer would cause a failure.

Yeah, that was the first thing I did, both on the lens and on the camera

Thanks

---------- Post added 12-14-15 at 12:10 PM ----------

Originally posted by jatrax

As noted above give the contacts a good cleaning, buff them with a microfiber cloth. Some third party lenses have mounts that are just a bit 'off'. In most cases there is no problem but rarely they can cause this issue.

Try cleaning the contacts first. If that does not work, double check that the mount on the lens is securely fastened. You might also slightly loosen the mount screws and try to rotate the mount a bit to see if you can align it better. But do that only if you feel comfortable working on a lens, and only loosen slightly do not remove the screws.

Yeah, all is good there, I see two of the pins are depressed a bit so it must be the pin springs not allowing for the pins to make good contact with the camera pins. I have another Sigma 28-90 that I can steal some from, or I may just take them out and visit a locksmith to buy some springs of the same dimension.

Thanks

---------- Post added 12-14-15 at 12:12 PM ----------

Thanks to you both for the quick reply. much appreciated

Kirk

12-13-2015, 01:59 PM	#1
K Bill New Member Join Date: Dec 2015 Posts: 9	Pin Connectivity Hello, this is my first post. Just like talk radio, I am a long time listener, first time caller. Or in this case, a long time viewer, first time poster. I purchased a lens from a friend that works perfectly on his Pentax DSLR Pentax K-10D however, it is not working correctly on my Pentax K-30., it will only work if I unlock it and turn it back a hair. Not sure why, but I do notice that 3 of the 5 little spring loaded contacts don't pop out as much as the other 2. The lens is a Sigma DG 70--300 Any ideas? Thank you Kirk

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Nature Pin Tail Drake	Mikesul	Post Your Photos!	3	11-29-2014 05:36 PM
USB Connectivity	ChipB	Troubleshooting and Beginner Help	9	10-03-2014 08:40 AM
K-3 USB connectivity issue	peterjcb	Pentax K-3 & K-3 II	8	03-20-2014 08:12 PM
K10D connectivity issue with win7	Whoever	Troubleshooting and Beginner Help	2	11-05-2013 04:35 PM
Pentax to iPad connectivity	_Bergman_	Pentax K-30 & K-50	24	08-24-2013 10:10 AM

12-13-2015, 03:01 PM	#2
Canada_Rockies Loyal Site Supporter Join Date: Nov 2007 Location: Sparwood, BC, Canada Photos: Gallery \| Albums Posts: 12,385	First thing to do would be to clean those contacts. If they are only lightly touching, anything that impedes the data transfer would cause a failure.

12-13-2015, 03:36 PM	#3
jatrax Site Supporter Join Date: May 2010 Location: Washington Cascades Photos: Gallery \| Albums Posts: 12,991	As noted above give the contacts a good cleaning, buff them with a microfiber cloth. Some third party lenses have mounts that are just a bit 'off'. In most cases there is no problem but rarely they can cause this issue. Try cleaning the contacts first. If that does not work, double check that the mount on the lens is securely fastened. You might also slightly loosen the mount screws and try to rotate the mount a bit to see if you can align it better. But do that only if you feel comfortable working on a lens, and only loosen slightly do not remove the screws.

12-14-2015, 11:05 AM	#4
K Bill New Member Join Date: Dec 2015 Posts: 9 Original Poster	Originally posted by Canada_Rockies First thing to do would be to clean those contacts. If they are only lightly touching, anything that impedes the data transfer would cause a failure. Yeah, that was the first thing I did, both on the lens and on the camera Thanks ---------- Post added 12-14-15 at 12:10 PM ---------- Originally posted by jatrax As noted above give the contacts a good cleaning, buff them with a microfiber cloth. Some third party lenses have mounts that are just a bit 'off'. In most cases there is no problem but rarely they can cause this issue. Try cleaning the contacts first. If that does not work, double check that the mount on the lens is securely fastened. You might also slightly loosen the mount screws and try to rotate the mount a bit to see if you can align it better. But do that only if you feel comfortable working on a lens, and only loosen slightly do not remove the screws. Yeah, all is good there, I see two of the pins are depressed a bit so it must be the pin springs not allowing for the pins to make good contact with the camera pins. I have another Sigma 28-90 that I can steal some from, or I may just take them out and visit a locksmith to buy some springs of the same dimension. Thanks ---------- Post added 12-14-15 at 12:12 PM ---------- Thanks to you both for the quick reply. much appreciated Kirk