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02-21-2019, 08:24 AM   #1
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Slooooooooooowww mirror on Pentax LX

Hello all.
Well, after some years in the shelf, i wanted to shoot again with my LX.
And what happens?
When i shoot, the mirror goes up sloooowly, and goes down normaly.

If i invert the camera, upside down position, the mirror moves faster, but goes down ( in this position up) slowly.
It's not the sticky mirror problem.

If i move it by hand, i feel it heavy, and "stationary".
I have a P30, and a K1000, and both mirrors are ok, when i move them by hand, they act free with clear tension.

Seems that the problem can be clogged grease....?

I've tried to find info in how to do a DIY maintenance, and nothing....
I've opening the base plate just to take a look, but from beneath there's no visual contact with the mecanics of the mirror.
Anyone can give me his opinion on what way need i take to arrive to this mecanic part to clean and lubricate?

I know, the best way is to send the camera to a CLA, but i like to do it myself, if it's not toooooo dificult.

Here's a video of the problem:


Thanks for your opinions!

Fabian

02-21-2019, 09:02 AM   #2
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it looks like there is a just a little up from rest that it is dragging on. Its not slow all the way up, just at that point. Since it reverses when you invert it, I would guess lubrication plus gravity. When you invert it, gravity is pushing the other way. If you're going to try to fix it yourself, you'll need this:

http://pentax-manuals.com/manuals/service/lx_repair.pdf
02-21-2019, 09:09 AM   #3
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It needs a clean and lube. Sombody may have used the wrong lubricant in the past, or it could be a buildup of gunk.
03-02-2019, 08:08 PM   #4
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Original Poster
Thanks for your replies.
How can i reach the mirror mechanism?, from the front? someone knows how to dismantle it?
i cannot see the way to approach it in the manual....

Thanks for your suggestions!

Fabian

03-02-2019, 09:11 PM - 1 Like   #5
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QuoteOriginally posted by foliver Quote
Thanks for your replies.
How can i reach the mirror mechanism?, from the front? someone knows how to dismantle it?
i cannot see the way to approach it in the manual....

Thanks for your suggestions!

Fabian
An LX is a complex camera that requires expertise to repair correctly. IMO despite your desire to do it yourself I suggest you spend the money for a CLA. Your camera will work flawlessly for twenty years if you do, but parts such as the body seals kits (if you open the camera you must replace the seals) are running out and once completely exhausted they’re gone forever.
04-04-2019, 12:03 AM - 1 Like   #6
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I had an LX with a similar problem. Simple fire the shutter many times until it frees up. I would say mine took 100 releases before it was moving freely again.
04-04-2019, 08:01 PM   #7
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thanks for the coment James, tomorrow, with a cofee, i'll give it a try.
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