Re: [ATM] Betr.: 48" Dob at OMI

["Everett Cairns" <ecairns@mcmaster.ca>]

    Yes,it is a pity.The noise is totally invisible at higher light levels, 
but as we know no telescopic instrument can raise the illuninance at the 
eye. Thank goodness for the digital age!

                                                            Everett


----- Original Message ----- 
From: "Mel Bartels" <mbartels@bbastrodesigns.com>
To: "'ATM'" <atm@atmlist.net>
Sent: Wednesday, April 30, 2008 11:19 PM
Subject: Re: [ATM] Betr.: 48" Dob at OMI


>> this is what I see and many others once it is brought to their attention.
>> But the interesting thing is how the noise reduction will kick in rapidly
>> with as little as 10% of the second objective uncovered! Now that is
>> impressive noise reduction.Good arguement for a binoviewer.
>
>
> More than that, ever since I used Bruce Sayre's 20 inch binocs, I always
> notice the graininess in monocular telescopes - I've been ruined!
>
> Mel Bartels
>
>
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