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Re: [ATM] Autocollimation Oil Test
I thought I heard some folks used it because it had higher viscosity. Less
sensitive to vibration?
On Sun, 22 Jan 2006, Martti Koskimo wrote:
> Arjan,
>
>
> Not really, it was just the first suitable available material.
> Surely there are better liquids.
>
> Martti Koskimo
>
> ----- Original Message -----
> From: "Arjan te Marvelde" <arjan.te.marvelde@hetnet.nl>
> To: <atm@atmlist.net>
> Cc: <martti.koskimo@kolumbus.fi>
> Sent: Sunday, January 22, 2006 9:49 AM
> Subject: Re: [ATM] Autocollimation Oil Test
>
>
>> Martti,
>>
>>> I have tested with grate success mirrors up to 700 mm in Diameter using
>> oil
>>> as reference flat. You can even use your favorite salad oil.
>>
>> Is there any specific reason you are using oil?
>>
>> Arjan te Marvelde
>>
>>
>
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