Re: Protostar curved secondary holders
- From: RichA <none@xxxxxxxx>
- Date: Mon, 13 Jun 2005 22:42:55 -0400
On Mon, 13 Jun 2005 19:24:06 -0700, "Bill Cotten"
<bill_cottenREMOVETHIS@xxxxxxxxxxxxxxxxxx> wrote:
>Hi all,
>I'm looking for opinions and user reports of the Protostar curved vane
>secondary holders. I'm building an 8" f/6 with a round fiberglass tube and
>a wall thickness of 1/8".
>
>I have used a Protostar 3-vane spider in the past and would definitely use
>one again based on it's quality and ability to hold collimation even after
>years of transporting the scope.
>
>I've been out of the ATM hobby since these curved vane holders came onto the
>market so any info would be appreciated.
>
>Bill Cotten
>www.spokaneastronomical.org
>
>
If you'd rather see an image that looks like you are looking
though a cracked objective lens than one with traditional diffraction
spikes, it's a good thing to go for.
-Rich
.
- References:
- Protostar curved secondary holders
- From: Bill Cotten
- Protostar curved secondary holders
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