Re: [APML] Prime focus filters

[John Laborde <jlaborde@ix.netcom.com>]

Michael,

I have had good results with the Lumicon Deep Sky filter and E200 film. 
 My original approach was to shoot E200 with the filter and use the 
results as a luminous channel with another shot on E200 without the 
filter as an alternative to using Tech Pan for this purpose. I later 
discovered that blending these 2 shots using the screen function in 
PhotoShop actually worked better.

Here is a shot using this technique:  
http://aisig.sdaa.org/astroblogDetail.asp?imgID=302&UserID=67

Here is a shot using just the Deep Sky filter: 
 http://aisig.sdaa.org/astroblogDetail.asp?imgID=318&UserID=67

John Laborde

Michael Barlow wrote:

>    This may or may not be the right group to ask this question but I'll
>give it a shot.. Tonight and Saturday night are looking good by what the
>clear sky clock says.  So I'll be out there doing some prime focus shots of
>M42 through an ST80 with an OM1 **!!FILM!!** camera using a roll of Elite
>Chrome 200 slide **!!FILM!!** autoguided with meade's lpi camera in my 8"
>sct.  I have been taking **!!FILM!!** shots of M42 through my SCT at
>cassegrain focus, some with and some without an sct nebula filter but this
>is the first time through the st80.  Now that I'm starting to go through the
>st80 I'd like to do some prime focus !!**FILM**!! shots with a filter some
>time.... Are there any filters that'll allow prime focus with a **!!FILM!!**
>camera through the st80 like the sct filters and if so what size filters
>should I be looking for?
>Michael A. Barlow
>P.S. did I mention I'm still doing !!**FILM**!! photography ;-)
>(a slap at the "nobody does film anymore" crowd)
>
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