Beginner question - lend off lensboard

[Stefan Lungu]

Hello everybody,

I know it's kind of a stupid question, but before I damage something I would rather ask. I got myself a 90mm Super-Angulon in a recessed Linhof board and would like to get it off the board. The problem is my lens key does not get in the small opening of the board on the back, and the ring seems to be pretty tight. Any idea how I could still get the lens off without damaging something ? I also noticed that the Copal sgutter the lens is in goes two clicks further open than the f8.0 mark. I guess it is a 5.6 shutter with a f8.0 scale ( the lens is a f8.0 Super-Angulon ). Is there a problem with this combination ( other than I should look when setting the aperture ) ?

Regards, Stefan

[Joe Forks]

You need a spanner wrench, rather than the "key" you are using.

As for the other, does your iris actually get larger past F8?

[Stefan Lungu]

Thank's Joe, I have some of those Linos pieces of metal, I got it from ebay, but it does not get to the ring. I also have a lens wrench, but the ring still is a little bit stiff. And yes, the iris opens when I go past f8.0.

[Andrew]

indeed it is a squeeze, but I can get the SK Grimes spanner wrench in there so it's just a matter of getting the correct tool

[Stefan Lungu]

Yes, it looks like I have the wrong tools, since both my two spanner wrenches - one round and one straight - are widening so the two side bars are not straight enough, at least not in the lower part enough to get in there. Have to figure out something else or wait until I get a better tool.

[Andrew]

is it possible to reverse the arm orientation on your tool ??

[Stefan Lungu]

Yes Andrew, it is possible, and with this I am able to get the wrench pretty good inside and so, but it is still to strong for me to loosen the ring. I wonder what kind of tool they used in the first place.

[Andrew]

they used a strong right arm !

either use more force or if you think it's really seized up you might consider a tiny tiny drop of lubricant into the threads and let it sit for a few days....
but don't let any get into the shutter or on the lens

[Gem Singer]

Unscrew both the front and the rear lens components. Set them aside in a safe place.

Get a good grip on the outer rim of the shutter.

Turn counter-clockwise. The shutter should unscrew without tools.

[Glenn Thoreson]

I often use a pair of needle nose pliers, the points of which I have ground down to fit these ring slots. I can really get a grip on them and apply a lot of torque. RE: Your shutter - It's capable of opening to 5.6 or maybe even 4.5 but with the proper scale, properly installed, it makes no difference whatsoever. Enjoy it. It's a great lens.