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Old Sep 17, 2005, 5:49 AM   #1
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I have just been given a Hanimex 400mm 1:6.3 lens
it has a screw mount that fitted an early model Pentax
it is about a 40+mm diameter thread
to put this lens on my K1000 or my ist ds all i have to do is buy an adapter
is that right?
how does the aperture work with the camera?
there doesnt seem to be any connectors to link to the camera
and does any one know where i can find any information on the lens
a manual or something like that?


my place - http://johndolphin.net/photos/
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Old Sep 17, 2005, 10:59 AM   #2
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Yep you will need a screw mount - k adapter.

To be able to use it you will have to set a few custom settings on the camera.

First: Click MF on, on the body

On the custom settings page, choose "Use apeture ring" to available.. and not sure if this one is necessary but i use it anyway - SI with something arather bla bla.. (I dont have my camera with me at the moment so I cant double check that.. they are right next to each other anyway)

Then to take your picture you must use the camera in M mode. Set your apeture with the ring, press the AE-L button - this will stop it down to take a reading, so it can set the appropriate shutter.

Hope this helps
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Old Sep 18, 2005, 12:15 AM   #3
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thanks
the custom settings i can do
i already use my K1000 lenses and have the camera set up for them

but i cant figure how the AE-L button is going to work
i cant see how the aperture will connect to the camera so it will be stopped down when the button is pressed

i guess i buy the adapter and find out




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Old Sep 18, 2005, 9:06 AM   #4
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This is what was once called a preset lens. It should have two rings: tha aperture ring and a"preset" ring right next to it. The diaphragm is not coupled to the body at all; everything is done by you manually. Set the aperture that you want with the preset ring and the Av ring will move also. Now, just twist the Av ring to the wide open setting for focusing ans when you twist it back it will stop at your preset Av.

Then, with the lens stopped down for shooting and the camera in either M or Av mode, press the AE/L button and the camera will set the correct shutter speed. As you noted, it can't control the diaphragm because of no electrical link.

Most of these old 400's are pretty sharp. The best of the bunch is the Spiratone Pluracoat Sharpshooter, probably because of the quality multi-coating applied. Spiratones are also T Mount lenses, so you can get one with any camera's mount on it and convert it to K Mount for $10.

Lou
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Old Sep 18, 2005, 10:59 AM   #5
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thanks
it does have the 2 aperture rings
so that makes sense now
i was quoted $28 for a new screw mount to k mount adapter
as the lens was given to me for $0, $28 for the adapter seems an ok buy
maybe if this works out ok i will keep my eye out for a better lens

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Old Sep 19, 2005, 10:08 AM   #6
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i have managed to get the adapter
and did a test photo
http://johndolphin.net/photos/details.php?image_id=472
i did an auto levels and unsharp mask
and i think it looks ok
crooked (hand held)
but ok

taken from Bold Park, City beach
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Old Sep 19, 2005, 11:21 AM   #7
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Leaning tower of Perth :?
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Old Aug 21, 2006, 2:46 PM   #8
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John, how are you doing with this lens. How far away were you to get such a clear shot - At least I think its pretty clear.


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Old Aug 21, 2006, 7:33 PM   #9
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Gumnut wrote:
Quote:
i have managed to get the adapter
and did a test photo
http://johndolphin.net/photos/details.php?image_id=472
i did an auto levels and unsharp mask
and i think it looks ok
crooked (hand held)
but ok

taken from Bold Park, City beach

Fantastic shot esp for handheld 400mm lens. I thought a tripod was essential for these lenses.

Darren


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Old Aug 21, 2006, 11:35 PM   #10
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There's an additional setting that you can set for screw-mount lenses. Under the custom menu there's FI with S lens used option that enables the focus indicator when screw mount lenses are used. Default is off, when turned on, the camera will think there's a lens attached, even when it's not (or at least, that's how I understand it). Sounds like something to turn off when you remove your adaptor. The interesting thing is that I didn't remember seeing this in the DS manual, but it's there as well. Probably because it's only been recently that I've even thought about getting something other than a K-mount lens.
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