M42 Infinity Problem

NickJS
Posted 01/08/2012 - 19:09 Link
Hello, I have a 28mm Takumar (in photos) and for some reason it wont focus to infinity on my k20d and just stays out of focus, however it focuses fine for portraits a couple of foot away.

Is there any way I can solve this issue? I'm baffled by it haha

[IMG]http://i49.tinypic.com/16bh7p1.jpg[/IMG]

[IMG]http://i48.tinypic.com/15o9pvt.jpg[/IMG]
punkrockemo
Posted 01/08/2012 - 19:28 - Helpful Comment Link
I think your problem is the adaptor, you need one that allows focus to infinity. These dont have the flange plate to the front and fit flush with the mount of the camera mount.

This is the pentax one

http://www.srsmicrosystems.co.uk/156/Pentax-Mount-Adapter-K.html

I use one i got from ebay like this and it works fine. They can be i bit tricky to get on and off.

http://www.ebay.co.uk/itm/M42-42mm-to-PK-K-Lens-Mount-Adapter-Adaptor-Ring-Infin...

I made exactly the same mistake when i first got an M42 lens
gartmore
Posted 01/08/2012 - 19:39 - Helpful Comment Link
Sounds like it to me too. The principle of the Pentax adapter is that it converts a K mount body to M42. You attach the adapter to the lens and attach it to the camera body, you then unscrew the lens from the body leaving the adapter temporarily inside the mount
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
NickJS
Posted 01/08/2012 - 19:53 Link
Cheers guys, I'll have to order one of those and give it a go
Frogherder
Posted 01/08/2012 - 19:57 - Helpful Comment Link
punkrockemo wrote:
I think your problem is the adaptor, you need one that allows focus to infinity. These dont have the flange plate to the front and fit flush with the mount of the camera mount.

This is the pentax one

http://www.srsmicrosystems.co.uk/156/Pentax-Mount-Adapter-K.html

I use one i got from ebay like this and it works fine. They can be i bit tricky to get on and off.

http://www.ebay.co.uk/itm/M42-42mm-to-PK-K-Lens-Mount-Adapter-Adaptor-Ring-Infin...

I made exactly the same mistake when i first got an M42 lens
If you get the ebay version - remove the spring.
It won't lock up in the camera then

regards
Bernard
Algernon
Posted 01/08/2012 - 20:57 Link
Oh yes it will
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi

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