Re: [APML] Focusing screens for Nikon F2

["Lydia Rufleth" <e.i.rufleth@SNET.Net>]

Thanks Robert and Jerry. There is a lot more to it than I originally thought
.  Now I will have to start collecting focusing screens like I have been
collecting lenses !

Lydia


-----Original Message-----
From: Jerry Lodriguss <jml@astropix.com>
To: astro-photo@seds.org <astro-photo@seds.org>
Date: Monday, June 17, 2002 12:35 AM
Subject: Re: [APML] Focusing screens for Nikon F2


>At 02:26 PM 6/16/2002 -0400, you wrote:
>>  I am a beginner in Astrophotography. I bought a Nikon F2 a year ago. It
>> had a focusing screen with a large circle & grid on it & I thought it was
>> a Beattie screen. I used it for the last year, thinking I had the
>> brightest focusing screen - the Beattie. I just removed it & see that it
>> is really the Nikon E focusing screen. (I'm dumb now, but was even dumber
>> last year!)  My question is - is the Beattie screen brighter than the E?
>> Are the Nikon C & D screens brighter than the E?
>
>Hi Lydia,
>
>If the E screen you have is the original E screen made for the F2, then the
>Beattie screen will be brighter.
>
>The new C and D screens for the F 3 are brighter than the old E screen too,
>but don't fit the F2.  Some people have swapped the glass from the new
>screen into the frame of the old screen to make it fit the F2.  I
>personally haven't done it, I would definitely be extra careful to check
>the accuracy of the focus if you do that.
>
>The Nikon D screen is just as bright as the Beattie and much less
>expensive, but as Robert has noted, it works best on long lenses.
>
>More info on screens at:
>
>http://www.astropix.com/HTML/I_ASTROP/SCREENS.HTM
>
>
>Jerry
>
>
>
>
>
>Jerry
>
>
>
>Astronomical photography: http://www.astropix.com
>
>
>
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