[Konvas] 2M mirror. Kinor 16

Luka S l.sanader at gmail.com
Wed Dec 14 17:52:58 EST 2016


Thanks Rita, i will find several diffract CD's and just see how they
behave.  cutting it is a easy part as i have access to CNC machine, my main
worry is about the balancing. how do you know its balanced and where
exactly to drill the holes?
do you have any photos of CD shutters that you made?
i have one 1M camera from 1989 i wounder if the mirror is the same, do you
know?
thanks
Luka

2016-12-13 11:24 GMT-05:00 Speedbird--- via Cinema <cinema at konvas.org>:

> Luka
>
> Years ago I made a number of mirror shutters from CD's that worked well at
> 25 fps. Not all CD's have a clear and shiny surface so you will have go
> through a number before you find the right one. Make sure you pick out the
> thinnest as these are easier to cut and cause minimal vibration.
> But they do work, probably better than the glass one. I did actually make
> a glass one from a disused mirror and was ground to shape by a local
> optician who also drilled the centre for me but the cost was greater than
> the cost of a replacement but this one had balance problems.
> CD's work a treat. VF was dim anyway to start with!
>
> Rita
>
> Sent from my iPad
>
> On 12 Dec 2016, at 21:19, colcam--- via Cinema <cinema at konvas.org> wrote:
>
> Check the archives-- one of the members found you could make a new mirror
> out of a blank CD and it worked quite well.
>
>
>
> -----Original Message-----
> From: Luka S via Cinema <cinema at konvas.org>
> Subject: [Konvas] 2M mirror
>
> Hello gang, i have one 2M in relatively good shape, as a spare camera,
> however mirror shutter is total crap. i need to replace it if i want to use
> this camera. it looks like i will need and extra body so am about to deal
> with this. any words of wisdom for me? anyone has one to spare? also is
> mirror shutter dame as lets one in 1M?
> thanks
> Luka
>
>
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