Re: [APML] Esthetical effects filters

[Emmanuele Sordini <vega@bloomingstars.com>]

Hi list,
thanks for your replies. Well, to sum up, we all agree I should go for a 
n-point star filter. But as far as a "bloating" filter is concerned, things 
are not quite as clear.
A friend of mine has to place an order with B&H, so I thought I could 
"sponge" a shipment. From their catalog, I read that

1) Tiffen sells the following filters: Pro Mist, Warm Soft FX 1,2,3, Fog 3, 
Double Fog 3
2) B+W lists the following: Soft Spot/Fog 1, 2, 3, Soft Image
3) Hoya has: Fog A, Fog B, diffuser.

They all come in a wide selection of diameters, so size is not an issue. 
But I'm a little confused: which one should I go for? Heeeeelllllllp! :-))

Emmanuele

At 21.18 07/05/2003 +0200, you wrote:
>Hi everybody,
>I occasionally run into some widefield piggyback pictures (i.e. no 
>telescopes involved, only telephoto lenses) which have some pleasing 
>effects on the stars in them. In particular:
>
>1) Some of them have the brightest stars which are bloated way beyond what 
>you could expect from their apparent magnitude. What kind of filter is 
>used to achieve that effect? Perhaps by utilizing what is called a "fog 
>filter"?
>
>2) In some others (but fewer anyway) the brightest stars have many nice 
>rays/points. Since those rays do not come from a telescope secondary 
>mirror's spider vanes, what filter is used in this case? Perhaps a n-point 
>star (n=6, 8...) filter?
>
>I'm all ears...
>
>Thanks in advance and clear skies,
>Emmanuele

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