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06-16-2016, 01:19 PM   #31
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QuoteOriginally posted by smf Quote
Below are images shot before counterclockwise movement of the adapter, part way through that counterclockwise movement, and after the counterclockwise movement.
Ok, it took a bit of fiddling but I was able to insert the adapter in the wrong way on my broken MZ-50. Here is what works for me to get it out.

You can't pull it straight out as you would normally. Twist the adapter so it is in the position of your second picture - with the end of cut-out just aligns with the edge of the screwdrive. Grab the ring with your finger and thumb over the PE in PENTAX (around 6 o'clock). Jiggle/rotate the adapter ever so slightly while lifting up only the end your are holding - as if you are peeling it off. It should come out.

The spacing on the tabs on the top are such that they won't fit through the openings. You have to slide the adapter in the towards or away from the top of the camera in order to get it in or out. Normally you can insert the adapter evenly and keep it level with the mount. The tab and opening around the 6 o'clock position when oriented this way are very close which makes it tricky to get them lined up.

I guess liking those puzzles with interlocked pieces of twisted metal has some practical value

Below are photos of the adapter on the way out (or in) on a MZ-50. Peel/lift it out in this manner.




Last edited by Not a Number; 06-16-2016 at 02:22 PM.
06-16-2016, 07:24 PM   #32
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QuoteOriginally posted by Not a Number Quote
Ok, it took a bit of fiddling but I was able to insert the adapter in the wrong way on my broken MZ-50. Here is what works for me to get it out.

You can't pull it straight out as you would normally. Twist the adapter so it is in the position of your second picture - with the end of cut-out just aligns with the edge of the screwdrive. Grab the ring with your finger and thumb over the PE in PENTAX (around 6 o'clock). Jiggle/rotate the adapter ever so slightly while lifting up only the end your are holding - as if you are peeling it off. It should come out.

The spacing on the tabs on the top are such that they won't fit through the openings. You have to slide the adapter in the towards or away from the top of the camera in order to get it in or out. Normally you can insert the adapter evenly and keep it level with the mount. The tab and opening around the 6 o'clock position when oriented this way are very close which makes it tricky to get them lined up.

I guess liking those puzzles with interlocked pieces of twisted metal has some practical value

Below are photos of the adapter on the way out (or in) on a MZ-50. Peel/lift it out in this manner.
Yes! I thought that is the way it would work. I also have a parts body, but did not want to risk my adapter doing proof of concept.


Steve
06-17-2016, 02:24 PM   #33
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Yes, there is some point in keeping broken equipment. I don't think it's worth spending the time or money to repair the camera.

Here are photos with the ring immediately after it was set into the mount. From this position it can be lifted out starting at "bottom". If you line up the cutouts relative to the red dot and screwdrive shaft you should be able to get the sucker out. The last photo shows how close the size is between the one tab and the cutout on the camera mount. They must be lined up almost exactly before the tab will pass through.



06-19-2016, 02:03 PM - 1 Like   #34
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Success!
Thank you, everyone!
As someone stated in another thread on another topic, I cannot adequately convey by typing the extent of my gratitude and appreciation!
Best wishes to all.
Most respectfully,
Stu

06-19-2016, 02:27 PM   #35
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Good to hear! Kudos to all who contributed here - another example of what makes these forums so great.
06-19-2016, 03:07 PM   #36
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Awesome! Now put it on the right way (if you dare) and have fun taking pictures.

You can try mounting it on the lens first and then line up the red dots and mount it as you would any k-mount lens. Just make sure you haven't damaged the clip in you earlier attempts to remove it.
06-19-2016, 03:15 PM   #37
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I think I will buy a new adapter, as I am unsure how to safely determine the clip is undamaged.

Not A Number, thanks for your very detailed advice, which was most helpful in my eventually successful effort to remove the adapter.

Stu
06-19-2016, 05:32 PM   #38
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Awesome!

06-19-2016, 06:06 PM   #39
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QuoteOriginally posted by smf Quote
I think I will buy a new adapter, as I am unsure how to safely determine the clip is undamaged.

Not A Number, thanks for your very detailed advice, which was most helpful in my eventually successful effort to remove the adapter.

Stu
Take the clip off it and use it for a while without it. I think you will be surprised how unnecessary it is. If so, buy a bunch of cheap third party ones and remove the springs off them and attach them permanently to your various M42 lenses. In no time you will barely notice the difference between that and a standard K mount. Also if you don't require infinity then the noninfinity adapters are superior in all other respects.
06-19-2016, 06:20 PM   #40
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The clip shouldn't be damaged unless you used a lot of force on it with the screwdriver. With the ring inserted incorrectly there is nothing for the clip to bind on that would damage it. You would have noticed this if you had to use a lot of force to rotate the ring.

If you buy a third party adapter you should remove the spring and screw.
06-19-2016, 07:15 PM   #41
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QuoteOriginally posted by Not a Number Quote
The clip shouldn't be damaged unless you used a lot of force on it with the screwdriver. With the ring inserted incorrectly there is nothing for the clip to bind on that would damage it. You would have noticed this if you had to use a lot of force to rotate the ring.

If you buy a third party adapter you should remove the spring and screw.
Since I own a genuine Chinese {aka third party} adapter, I just gotta ask:
"Why remove the spring and screw"/
"What harm is it causing me?"
"Will I lose any effectiveness by removing it?"

{thanks in advance for your advice}
06-19-2016, 07:24 PM   #42
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QuoteOriginally posted by reh321 Quote
Since I own a genuine Chinese {aka third party} adapter, I just gotta ask:
"Why remove the spring and screw"/
"What harm is it causing me?"
"Will I lose any effectiveness by removing it?"

{thanks in advance for your advice}
I have heaps of them and always remove the spring. It means that the adapter stays on the lens rather than the camera. They are so cheap you can buy one for each of your lenses. And when I started I had a jam up (can't remember if it was a cheapo or not) Fixed the problem by snipping the adapter with a set of sturdy sidecutters and collapsing it. Never let a spring near my camera since.
Edit -- the only effectiveness you lose is the lens is not locked in place on the camera. This is a deal breaker for some people but I find it not an issue. When I go trekking my camera is in my hand over pretty rugged terrain for hours on end and I have never had a problem with it.

Last edited by GUB; 06-19-2016 at 07:31 PM.
06-20-2016, 12:00 AM   #43
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There's no sense in spending the additional money to buy an OEM adapter if you are going to remove the spring. They reason you buy a genuine Pentax adapter is because the spring doesn't jam.
06-20-2016, 03:34 AM   #44
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If a person is using an OEM adapter from which the spring and screw were removed, and if the adapter is inserted by first attaching it to the lens, does the adapter automatically come out of the camera with the lens when the lens in removed (as a previous poster indicated is the case with a third-party adapher)?

Thanks very much.

Last edited by smf; 06-20-2016 at 03:38 AM. Reason: Simplify
06-20-2016, 03:45 AM   #45
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QuoteOriginally posted by smf Quote
does the adapter automatically come out of the camera with the lens when the lens in removed
Yes, it does. That's the point of removing the retaining spring.

There have been people who have (carefully) drilled a hole in the adapter to take the retaining plunger in the K mount, then put it on the lens with loctite. This basically gives them a stop-down K mount lens. I wouldn't try that without meticulous, precise marking of the adapter followed by the very careful use of a vise and drill press. Definitely one to try with a Chinese cheapie.
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