Canonet won't fire

If he has to remove the middle group assembly, that wrench will not work.
There is only 1/16" clearance around the housing. I grind down a pair of needlenose pliers to make a easy to use tool.
 
Thanks for the link for the wrench, but it seems, according to Whisper, it might be a little too thick in my case.

I feel the best, cheapest, and safest option would probably be to just get a metal file and file down my needle nose pliers.
 
I bought a set of those and have hardly used them. The are not fine enough for many lens repairs. I then got a set from Japan which is far better.

The website is here

http://www.japan-hobby-tool.com/english/
and the kit I got is here
http://www.japan-hobby-tool.com/english/camera/set-b/detail.html
but these are very good as well
http://www.japan-hobby-tool.com/english/camera/maruasi/detail.html

They used to sell on eBay but not sure if they do now.

Kim

FallisPhoto said:
BTW, a lens wrench can be had for about $20. If you're going to be doing much of this it is an essential piece of equipment. http://cgi.ebay.com/New-Spanner-Wre...VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247
Click to expand...
 
I doubt you will be able to do it with a file. You really need to use a grinder.

pliers1.jpg


Kim
RFOBD said:
Thanks for the link for the wrench, but it seems, according to Whisper, it might be a little too thick in my case.

I feel the best, cheapest, and safest option would probably be to just get a metal file and file down my needle nose pliers.
Click to expand...
 
Oh, I see now.

Thank you for the link, I have emailed them for a price quote for the second item you mentioned, but it appears they have either changed their email address or are no longer in business.
 
I used some very small long nosed pliers which didn't require filing but you do have to be very careful not to slip and scratch the lens.
 
I did find a couple shots of the spanner wrench I have. First, laid out with the other various armamentaria and then loosening the ring which most people can get with a rubber thingie ...
 

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Kim Coxon said:
I bought a set of those and have hardly used them. The are not fine enough for many lens repairs. I then got a set from Japan which is far better.

The website is here

http://www.japan-hobby-tool.com/english/
and the kit I got is here
http://www.japan-hobby-tool.com/english/camera/set-b/detail.html
but these are very good as well
http://www.japan-hobby-tool.com/english/camera/maruasi/detail.html

They used to sell on eBay but not sure if they do now.

Kim
Click to expand...

I have four wrenches like the ones in my link, wtih various tips. I also have a set of dividers I use for getting at two-hole bolts that are deep inside a camera and a few tools ground out of putty knives. I used a Dremel on my lens wrenches to modify the tips a little, as does just about everyone else who has them.
 
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So I finally was able to get the first glass element out of my Canonet. I had a lot of stuff going on with work so I wasn't able to take a look at it again until just now and it was so apparent to me as to what to do.

Now I'm at what I fear you have all actually been referring to. The dreaded middle element.
 
RFOBD said:
Now I'm at what I fear you have all actually been referring to. The dreaded middle element.
Click to expand...

Uh-huh, that's the challenging one.

You can TRY taking it out with friction alone, some people have done it, or getting a spanner to fit those teensy notches.

I bit the bullet and used the suggested drill method. Don't let the word "drill" scare you off, just think Dremel instead of Black and Decker. :)
 
haha...I'm not particularly concerned about drilling in there...it's more the fact that I don't have a Dremel and would prefer to keep this a low budget operation. I also want to do this right, though, so I may just suck it up and get one.

Where do I actually have to drill? Do I just make small holes in the silver metal to allow me better access to the notches in the lens element mount way down there?

I apologize for my (probably) terrible wording of things, but I'm not sure of the proper terms for all these parts or even how to really describe them.

Thanks for all your help!
 
RFOBD said:
Where do I actually have to drill?
Click to expand...

If you look at the front surface of the center lens group, you will see kind of a slanty metal surface. (I'm also ignorant of the technically correct terms for a lot of this.) Start out by drilling (very tiny jewelers bit, just big enough to fit the tip of a pointed spanner) perpendicular to the slanted surface, and then raise the drill to more of an upright angle once the hole starts to go.

It doesn't take much. Drill more of a dimple than a hole, actually.

Drill two of these, opposite each other, on the slanted surface.

Then take a spanner with a pointy tip and unscrew.

I do remember some warnings about this middle element removal. It SHOULD come out in one piece, but if the elements have separated, one element may remain, and the center lens group will have to be cleaned and re-cemented either with Canada Balsam or a newer synthetic optical cement. I was NOT looking forward to having to do that!
 
dmr said:
If you look at the front surface of the center lens group, you will see kind of a slanty metal surface. (I'm also ignorant of the technically correct terms for a lot of this.) Start out by drilling (very tiny jewelers bit, just big enough to fit the tip of a pointed spanner) perpendicular to the slanted surface, and then raise the drill to more of an upright angle once the hole starts to go.

It doesn't take much. Drill more of a dimple than a hole, actually.

Drill two of these, opposite each other, on the slanted surface.

Then take a spanner with a pointy tip and unscrew.

I do remember some warnings about this middle element removal. It SHOULD come out in one piece, but if the elements have separated, one element may remain, and the center lens group will have to be cleaned and re-cemented either with Canada Balsam or a newer synthetic optical cement. I was NOT looking forward to having to do that!
Click to expand...

So I'm just very carefully drilling a couple holes in the slanted metal part right next to the lens to allow a spanner or other wrench to grip that part and unscrew it?
 
RFOBD said:
haha...I'm not particularly concerned about drilling in there...it's more the fact that I don't have a Dremel and would prefer to keep this a low budget operation. I also want to do this right, though, so I may just suck it up and get one.

Where do I actually have to drill? Do I just make small holes in the silver metal to allow me better access to the notches in the lens element mount way down there?

I apologize for my (probably) terrible wording of things, but I'm not sure of the proper terms for all these parts or even how to really describe them.

Thanks for all your help!
Click to expand...

First, not all rotarey tools are dremels and they are not all expensive. http://cgi.ebay.com/3-6-VOLT-60-PCS...ryZ34056QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Second, you do NOT drill on the camera. You take a grinding bit and work the blades of a cheap lens wrench down so they will fit into the notches in the center element's ring. Alternatively, as Kim has done, you can grind down the points of a set of needle nosed pliers. It works, but you have to be extra careful not to scratch things with the pliers. Yet another option is to grind a kind of "big screwdriver" out of a putty knife that will fit.
 
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