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Remarking lens focus marks


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#1 Craig Knowles

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Posted 29 August 2007 - 12:07 PM

I've got a lens that I'd like to remark the focus marks on. The barrel marks don't match the actual focus points at all (apparently Angenieux did this from time to time -- mixed and matched bodies with different optics).

I know it could be as easy as using some masking tape and a sharpie, but I'd like a permenant solution that will stand up to long-term wear and tear.

Is there a standard methodology for remarking a lens? Should I glue a thin strip of plastic or aluminum around the barrel, find the focus points, and then have them engraved on the new strip? Should I send it off to have done by a lens tech?
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#2 Craig Knowles

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Posted 02 September 2007 - 12:33 PM

No on has any idea how to remark a lens body?
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#3 Olex Kalynychenko

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Posted 02 September 2007 - 12:44 PM

I've got a lens that I'd like to remark the focus marks on. The barrel marks don't match the actual focus points at all (apparently Angenieux did this from time to time -- mixed and matched bodies with different optics).


At first, need ask of optical technician or camera repair lab.
Not need to remark the focus marks, need adjust of lens correctly.
Possible, the your lens have incorrect of flange focal distance.
From other side, the many lenses ( russian ) have possibility to change of position of ring with distance marks and need set of ring with distance marks on new position.

And not need forget about flange focal distance of camera. The camera can have not standard of flange focal distance too.
Will be better, if you will adjust of lens with your camera.
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#4 Craig Knowles

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Posted 04 September 2007 - 02:12 PM

Thanks for your reply, but the issue isn't that the lens is "off" and needs to be adjusted -- it's that the focus marks do not reflect the optics that are contained in the body of the lens and never did. Depending on the application of the lens, Angenieux would sometimes put the optics from one lens into the body of another. This has been verified by a tech, but he offered no suggestions as to how to remark/rescale it.

Remarking a lens appears to be less common than I had first imagined.
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#5 Nick Mulder

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Posted 04 September 2007 - 02:55 PM

http://www.skgrimes.com/
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#6 Michael Collier

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Posted 04 September 2007 - 06:41 PM

It seems the easiest way, if there is a standard deviation in the focus markings, not remark the barrel, just add a new target line. Fill in the first line with black epoxy or something robust, then engrave and paint a new line where it needs to be. This is assuming the housing though wrong for the optics inside, still has the same scale as the optics, which may or may not be true. Test out your lens and see if the deviation of focus is standard, if so you saved yourself a lot of time and money.
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