How can I disassemble / repair a CPL (Circular Polarizing Filter)?

One of my circular (rotating) polarizing filters has big hair between the two lenses. The hair moves and I always have to shake it until they are out of sight.

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Similar to that

How could I disassemble and reassemble (after I got rid of tiny, annoying hair)? I have not found any help / tutorial online and I am not sure how the pieces are soldered.

macOS Mojave – Time Machine – Do not disassemble your network drive

You have a problem with Time Machine that seems to be related to Spotlight.

Time Machine does not unmount / eject the network backup drive, which prevents me from doing things on the backup drive.

Time Machine Journal:

[com.apple.TimeMachine:TMLogInfo]    Disc 3 ejected from & # 39; /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D/Graham' s_Mac.sparsebundle & # 39;
[com.apple.TimeMachine:TMLogInfo] Unable to disassemble & # 39; /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D&#39 ;, error: 16 busy resource
[com.apple.TimeMachine:TMLogError] Unable to delete the directory & # 39; /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D&#39 ;, error: 16 resources busy.

It's a metadata thing:

Grahams-Mac: Graham Volumes $ sudo lsof /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D
USER PID COMMAND TYPE FD DEVICE SIZE / NAME OF NODES
mds 82 root 15r DIR 52,32 264 2 /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D

Disable Spotlight for a range of drives.
Time Machine uses a different name each time.

Grahams-Mac: Graham Volumes $ sudo mdutil -i off /Volumes/com.apple.TimeMachine.TM_Prime*
/Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D:
2019-04-27 18: 22: 26.919 mdutil[2929:1075028] mdutil disabling Spotlight: /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D -> kMDConfigSearchLevelFSSearchOnly
Indexing and search disabled.

Dismantled reader

Grahams-Mac: Graham volumes $ diskutil force umount force /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D
Disassembling successfully for /Volumes/com.apple.TimeMachine.TM_Prime-DA16D91F-3320-4834-91ED-2902CE57E46D

Run a Time Machine backup. Same problem.

Any help would be appreciated.

transactions – How to disassemble a bitcoin script?

bitcoind has a decoding method.

$ bitcoin-cli decodescript "512102974ffd58d960908d6f2930fbcc4aa288580d0f5a
{
"Asm": "OPRECMULTISIG",
"reqSigs": 1,
"type": "multisig",
"Address": [
    "1CmMoanE9uahYETLahBTGZSFZSQGV8ADrR",
    "12z2brRNYFkqJe3zP58uoiGcLqDxfk6J7r"
  ],
"p2sh": "34EJTjAmEPbPGXAPQWU7sn4beoZyGTTxBw",
"segwit": {
"asm": "a45407120f912ef91ecd7e66a27cb4dc106f962172470b1b39c1bb5008898277",
"hex": "0020a45407120f912ef91ecd7e66a27cb4dc106f962172470b1b39c1bb5008898277",
"reqSigs": 1,
"type": "witness_v0_scripthash",
"Address": [
      "bc1q532qwys0jyh0j8kd0en2yl95msgxl93pwfrskxeecxa4qzyfsfmsfgd3m5"
    ],
"p2sh-segwit": "32KAK2XxwcYPc5iu3tNoXv3ksu4Gf3NsH3"
}
}

Are there any rules to disassemble a killed creature?

I have not played D & D for a while, although recently I started playing with my kids there. The group is composed of five people. Until now, they acted wisely and were fortunate enough to be able to kill a Thundertree green dragon. Are there any rules to disassemble the dragon, for example to sell his meat and make armor from his scales?

troubleshooting – Zeiss Planar 50 mm f / 1.7 turbidity on rear element: disassemble and clean? Recalibration problems?

I recently bought the infamous Planar 50mm 1.7 at a great price, because of its slightly fogged back element (see photos attached), which my trusted photographer diagnosed as being an early spreading fungus.

Now, I know this will slightly affect image quality – I'm not even betting at all. What concerns me is that the fungi eventually spread to the inner elements, since it seems to live on the last element, while avoiding any contamination by other lenses.

My question is: Is this back element easily accessible?

It seems to be so, provided you have an objective key: just looking at the lens seems very easy. The two notches located just around the glass (and the screws also) suggest that it is possible to unscrew only this element.

However, I could not have any video and / or step-by-step article and / or documentation explaining how to start from the back of the lens, which makes me wonder if it is possible or not. In addition, among the videos available (like this one), I noticed that to access the blades, for example, you have to start from the front, in fact …

Even if it turned out to be possible, I'm afraid of recalibration problems: Can dismantling this lens lead to this kind of problem, whether I leave behind or before?

troubleshooting 1

troubleshooting 2

troubleshooting 3

Thanks in advance.

P. S. How should I clean while waiting? I have brushes, blowers and a lens holder. Should I use them without worry?