Stuck Body Mount

I'm in a bit of a bind, or rather my body mount is. I recently bought a K1000 from Ebay to accompany my P30 on my travels and it came with some additional lenses.

Two of them are the older screw type Optomax lenses and came with a PK body mount adapter. But now that I've fitted it, I can't get it out. It's not a major problem as the main lens that I'l be using on the camera is one of the screw fit lenses, but I will need to get the body mount off at some point.

Does anyone have any experience of the body mount adapter, and any hints on getting it off.

Thanks everyone.

Aha, found in the K1000 manual on the Pentax site. There's a thing you press in the mount itself. Panic over.

I find these mounts a pain, and have removed the little bit of springy metal that holds the adaptor in place.

It does mean that the whole caboodle can dismount itself if you're not careful, but I find that less of a problem than struggling with the key to get the adpator off.

In effect, these adapters change a bayonet body into a screw thread body. That's fine, but I think it would be better to have an adapter that converts a screw thread lens to bayonet. Then you could have an adapter on every lens in the same way as leica make for their rangefinder cameras.

Still, at least we can still us screw thread lenses on bayonet bodies and some of them are very fine lenses indeed.

Hello, I'm newbie Lee and I have the same problem as Slacker:
I'd bought a K Mount to M42 lens adapter and I can't unscrew the adapter ring from the lens now.

Seller (eBay) told me I had to have strong hands (unless there was a safety lock on my lens) but I'm afraid I will damage the lens if I use brute force.

Question 1: Does an original Takumar 50mm/1.2 lens have this 'safety lock'?


Question 2: (this may sounds stupid of me...) Do you mean you HAD to remove the whole bit of springy metal otherwise the adapter will stuck there forever?

Question 3: Can I use such a 'K Mount to M42' adapter ring on my Pentax MZ-s? ('cos it doesn't fit the body, unless I'm doing something wrong?)




I hope someone can help me out with this as I do want use that 50mm screw lens on my Pentax SP1000 next month.

Thanks,

Lee

1) There is no such thing as a Takumar 50mm f1.2 lens, do you mean a 50mm 1:2 (i.e. f2) lens? Anyway, the adapter fits on the lens, and you put the lens on the camera. Then you can unscrew the lens, leaving the adapter in place on the body. This should not be a problem.

2) OK, the adapter is now on the body. To release it, take a ball point pen tip to press the "little bit of springy metal" which will enable you to rotate the adapter and it should easily be removeable.

3) Follow the procedure described in answer 1) and you will be able to use the adapter on any Pentax bayonet body, including the MZ-S

Do please let us know how you get on!

Thanks for the help! I'm so relieved I had maneged to get this adapter off my f/2 lens (yes I meant f/2 I must have mixed things up as it was 3am CET )

I've noticed there was an other miniscule metal thing on the lens itself, other than the blue metal springy strip on the side of the adapter and tried to push that down and for a while the adapter was totally struck (-a little panick-) but I used a metal device that helps you screw the adapter off and it came off, luckily.

I haven't tried it again on my MZ-s yet, but does it matter whether you screw the ring first on the lens or on the body itself?

Glad you were successful!

The correct procedure is to attach the adapter to the lens, and then put the lens onto the camera. When you unscrew the lens, the adapter stays behind on the camera body.

This means you can then use the body to mount and remove screw thread lenses, until such time that you remove the adapter.

And this worries me a little, would it be very easy to remove it or do I have to follow the same 'ballpoint' procedure to remove the adapter off the body?

(I only have 2 -not so fast- zoom lenses for the MZ-s and 2 fast screw lenses for the SP1000 and I need both camera's for different usages>>can't take the risk to have to miss a lens or body due an adapter)

That is the way it is supposed to work, so the ball point pen or similar item is necessary to release the lock on the adapter. It's not any more of a hazard than attaching or removing anything else, but if you're not happy with it then don't do it....

It is quicker to use bayonet lenses on bayonet bodies, but there are plenty of very good screw mount lenses that can be very useful, and the choices are there.

Hope that helps, but only the individual can decide how they want to proceed. I do use the Pentax adapter, but only rarely because it isn't particularly convenient IMHO. And I do use a jeweller's screwdrive instead of a ball point pen, but it amounts to the same thing!

Oh I see...it's not the inconvenience as such I was worried about, it's more that I'm afraid I will damage some things and never be able to use it again. (little 'accidents' with machines in the past)

As a real Pentax fan I'm looking for an older K mount camera like ME/LX or even K1000 so I can use this adapter without my worries. (But I was already searching for an older K camera before this adapter thing)

Again, thank you Mr. Riley!

These adaptors are supplied with a special key, which you can see in the photos here:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=15240&item=3872...

Using ball-point pens or screw-drivers is feasible, but more difficult.

However, as I posted last year, I prefer to remove the piece of springy metal that holds the adaptor in place on the body. Although it means that the lens can detach itself from the camera quite easily, I find this preferable to struggling witht the key or some other implement.

G

I didn't get a key with mine! (But It's 20 years too late to complain...)

Yes, I'd bought the same but from another eBay seller. (It's a 'key'? I called this a 'metal device')

I haven't removed the springy metal* but had pushed it down and screw the adapter from the lens.


*at first I thought you meant the little blue metal piece on the side of the adapter itself, that's why I'd asked that stupid question #2...

Read the discussion on how to remove the adapter from the camera body; I just SQUEEZE the spring with my FINGER at the same time as TURNING it and it comes out NO WORRIES!