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Old Dec 23, 2005, 8:27 AM   #1
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Hi!

I have old m42 lenses and intend to buy KM 5D soon.

Can I set F 1.5 in manual /aperture prioritymode in order to use one of my lenses fully opened?
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Old Dec 23, 2005, 9:48 AM   #2
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as long as the lens communicates with the body you can. The 5D only allows you to set aperture within the range that the lens can use.
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Old Dec 23, 2005, 9:49 AM   #3
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I don't know what M42 lens is, but MD, MC or ROKKOR lenses will NOT work on 5D.
Otherwise, all AF Minolta lenses will work on 5D and yes, you can use them at max aperture.

Here is a link with all AF Minolta lenses, you should see if yours is.
http://www.mhohner.de/minolta/lenses.php
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Old Dec 23, 2005, 9:56 AM   #4
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M42 - Pentax screw mount lens. All they are manual focus and there won't be communication with the body. I'm going to use them with adapter.
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Old Dec 23, 2005, 9:56 AM   #5
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So can somebody tell me if I turn on shooting mode without attached lens on body (or similar mode, I don't know the exact name, I think it's possible to do it in menu settings) can I set aperture number 1.5 in full manual mode?
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Old Dec 23, 2005, 10:00 AM   #6
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the quick answer is YES, but,

you will need an m42 - maxxum body adaptor

http://www.bhphotovideo.com/bnh/cont...goryNavigation

<This adapter allows a "universal screw mount" type lens (Pentax M42) to be mounted on a Minolta Maxxum body. Although the lens will fit physically, automatic diaphragm (AE metering), or any other functions are not retained using this adapter. In this case you will need to meter in "stop-down mode" since the lens does not have the ability to have its aperture controlled by the camera body>
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Old Dec 23, 2005, 10:13 AM   #7
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Troy Carter wrote:
Quote:
as long as the lens communicates with the body you can. The 5D only allows you to set aperture within the range that the lens can use.
the lens won't communicate with the body but I'm sure I will manage totake a shot. What about the aperture range then? 1.0 to 22 or...?
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Old Dec 23, 2005, 10:50 AM   #8
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I think I may have the same issue. I have a screw mount 300mm mirror lens manual focus with a fixed aperture of 5.6 , this is a great lens I always had good luck with . I like it because it's only about 3 1/2" long very easy to handle and light too. I'm hoping I can get a t-mount adapter for the 5D so I can use this lens with it. Any one have any luck using this type of lens with the 5D? George
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Old Dec 23, 2005, 4:36 PM   #9
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buy a t mount adaptor for the maxxum body and you will be fine

you will need to use camera in manual mode
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Old Dec 23, 2005, 4:40 PM   #10
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troy,

the f stop of the 'adapted' lens MAY be slightly smaller (higher no) due to the adapter's placing the lens a little further from the 'film plane'

mu guesstimate is about 1/2 stop 1?!?
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