UD extension tube and polaroid filter
+4
Chris Miceli
zanemoseley
mikemyers
ragged claws
8 posters
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UD extension tube and polaroid filter
How many of you folks use the UD extension tube (other than for mounting purposes) or the polaroid filter? The reason for my question is that I managed to destroy a new 1" UD trying to get the trim ring to unscrew. With the help of a pair of pliers I turned the muzzle end of the tube into an oval! I'm going to order another UD 1" red dot but will just leave the trim ring in place unless there's an over riding reason to use either, or both, of these attachments.
Thanks,
Kim
Thanks,
Kim
ragged claws- Posts : 29
Join date : 2018-08-16
Location : CA Sacramento River Delta Region
Re: UD extension tube and polaroid filter
Next time, try this.
Put the sight down on a "grippy" rubber surface, pointed downwards, and push down, hard, while twisting it CCW to unscrew it. I've done this before on camera components, and it not only works, it can't damage the components, as it's not doing anything to distort the end of the sight (as would happen with pliers).
Put the sight down on a "grippy" rubber surface, pointed downwards, and push down, hard, while twisting it CCW to unscrew it. I've done this before on camera components, and it not only works, it can't damage the components, as it's not doing anything to distort the end of the sight (as would happen with pliers).
mikemyers- Posts : 4236
Join date : 2016-07-27
Age : 80
Location : South Florida, and India
Re: UD extension tube and polaroid filter
mikemyers wrote:Next time, try this.
Put the sight down on a "grippy" rubber surface, pointed downwards, and push down, hard, while twisting it CCW to unscrew it. I've done this before on camera components, and it not only works, it can't damage the components, as it's not doing anything to distort the end of the sight (as would happen with pliers).
Thanks Mike. Sounds like a great idea. I wish I would have asked this question and received this suggestion yesterday.
Kim
ragged claws- Posts : 29
Join date : 2018-08-16
Location : CA Sacramento River Delta Region
Re: UD extension tube and polaroid filter
I remember a couple years back I got a new match dot 2 and had the same issue. I got it mounted on the pistol then tried to remove the adapter ring so I could put the shade on, it was on way to tight. I ended up trying to use vise grips wrapped in tape which still scratched the trim ring up. Then I finally got it off with bare vise grips I emailed UD to ask for a replacement ring, instead of send me a $5 part they blamed it on me which really pissed me off. So I bought the ring and proceeded to sell all my UD products and replace them with Aimpoints, problem solved.
zanemoseley- Posts : 2688
Join date : 2015-07-11
Location : Cookeville, TN
Re: UD extension tube and polaroid filter
Sounds like people overtighten things
Chris Miceli- Posts : 2715
Join date : 2015-10-27
Location : Northern Virginia
Re: UD extension tube and polaroid filter
Chris Miceli wrote:Sounds like people overtighten things
Yeah the nimrods in Japan.
zanemoseley- Posts : 2688
Join date : 2015-07-11
Location : Cookeville, TN
Re: UD extension tube and polaroid filter
zanemoseley wrote:Chris Miceli wrote:Sounds like people overtighten things
Yeah the nimrods in Japan.
Very much so..
james r chapman- Admin
- Posts : 6372
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: UD extension tube and polaroid filter
I just hand tighten when putting on my shades. Have not stripped too many of them.
LenV- Posts : 4769
Join date : 2014-01-24
Age : 74
Location : Oregon
Re: UD extension tube and polaroid filter
the problem isn't the shades, it's the ring you have to remove to screw the shades in. It's tightened by the hounds of Hades....LenV wrote:I just hand tighten when putting on my shades. Have not stripped too many of them.
james r chapman- Admin
- Posts : 6372
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: UD extension tube and polaroid filter
Methinks it's the technique, not the tightness. Think about it - anything you grip the part with will cause distortion, making it even harder to remove. I had the problem with filters on camera lenses, and filter adapters. With my bare hands, I couldn't get them to budge. Using the vertical pressure "trick", they came right off.
(I can't take credit for it - the idea came from the instructions for removing the filter adapter that comes on the Fuji X100 series cameras. They won't budge - but doing it the other way is effortless.)
(I can't take credit for it - the idea came from the instructions for removing the filter adapter that comes on the Fuji X100 series cameras. They won't budge - but doing it the other way is effortless.)
mikemyers- Posts : 4236
Join date : 2016-07-27
Age : 80
Location : South Florida, and India
Re: UD extension tube and polaroid filter
If it wasn't too tight, why would you need the unique technique.
james r chapman- Admin
- Posts : 6372
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: UD extension tube and polaroid filter
I think that part of the problem is in the thin material.....you try to grasp the ring with it's fine thread and distort the diameter, binding the threads. So you grab harder, binding the threads harder. When you push on the face & twist you put less tension in the wrong direction & the ring turns out.. Or it could be my perspective is what's distorting...
STEVE SAMELAK- Posts : 958
Join date : 2011-06-10
Re: UD extension tube and polaroid filter
Any tool that delivers a crushing grip is not the way to get the ring off.
The trim ring is made of thin metal and when you crush it from opposing sides, as you would with pliers, you distort it into an oval and are actually tightening the threading up.
The natural reaction is to tighten your grip on the ring even more, making it worse.
I have had a tight trim ring, but never needed more than patience and hand pressure to get it loose. Of course, there may be some installed hopelessly tight.
Mike’s suggestion is spot on. That method lets you apply twisting power with very even distribution of gripping force. The direction the force is applied ensures you cannot distort the shape of the ring.
-updated- I went to sleep with this thread open on my computer and typed in my response this morning. Once I sent it, I saw Steve had posted a similar comment while I was sleeping.
The trim ring is made of thin metal and when you crush it from opposing sides, as you would with pliers, you distort it into an oval and are actually tightening the threading up.
The natural reaction is to tighten your grip on the ring even more, making it worse.
I have had a tight trim ring, but never needed more than patience and hand pressure to get it loose. Of course, there may be some installed hopelessly tight.
Mike’s suggestion is spot on. That method lets you apply twisting power with very even distribution of gripping force. The direction the force is applied ensures you cannot distort the shape of the ring.
-updated- I went to sleep with this thread open on my computer and typed in my response this morning. Once I sent it, I saw Steve had posted a similar comment while I was sleeping.
willnewton- Admin
- Posts : 1108
Join date : 2016-07-24
Location : NC
Re: UD extension tube and polaroid filter
I just use my manly hand and finger strength to turn things. I have yet to be defeated
Chris Miceli- Posts : 2715
Join date : 2015-10-27
Location : Northern Virginia
Re: UD extension tube and polaroid filter
I just slot it and use a massively manly screwdriver to turn it off.
I have no plans to ever take the shade off.
I have no plans to ever take the shade off.
james r chapman- Admin
- Posts : 6372
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: UD extension tube and polaroid filter
Now THAT'S what I'm talking about. Would like to see a 30mm flat head lol.james r chapman wrote:I just slot it and use a massively manly screwdriver to turn it off.
I have no plans to ever take the shade off.
zanemoseley- Posts : 2688
Join date : 2015-07-11
Location : Cookeville, TN
LenV- Posts : 4769
Join date : 2014-01-24
Age : 74
Location : Oregon
Re: UD extension tube and polaroid filter
mikemyers wrote:Next time, try this.
Put the sight down on a "grippy" rubber surface, pointed downwards, and push down, hard, while twisting it CCW to unscrew it. I've done this before on camera components, and it not only works, it can't damage the components, as it's not doing anything to distort the end of the sight (as would happen with pliers).
Thanks so much Mike. I just got my new UD 1" in the mail and, sure enough, the trim ring was on super tight. I had ordered some rubber jar openers from Amazon and used one as you suggested. In 2 seconds the trim ring was loose and I was able to screw in the extension tube and resecure the trim ring. A very handy trick indeed.
Kim
ragged claws- Posts : 29
Join date : 2018-08-16
Location : CA Sacramento River Delta Region
Re: UD extension tube and polaroid filter
Glad it worked!
They should put that in the instructions.....
They should put that in the instructions.....
mikemyers- Posts : 4236
Join date : 2016-07-27
Age : 80
Location : South Florida, and India
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