Quark and 2" eps

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Pablito
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Re: Quark and 2" eps

Post by Pablito »

I will be on the way soon ;)

I am also ordering Quark adapters with SCT thread to use it with SCT reducers (0.33x and 0,66x). If anyone is interested, let me know :)


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Valery
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Re: Quark and 2" eps

Post by Valery »

Pablito wrote:I will be on the way soon ;)

I am also ordering Quark adapters with SCT thread to use it with SCT reducers (0.33x and 0,66x). If anyone is interested, let me know :)
Do not use SCT reducers. They have a native (build-in) coma which cancels the coma in SCT. So, if to use it in QUARK the images will have a coma.
Also, QUARK has a flat field and SCT reducer does not, because it corrects the field curvature in SCT.
If to use a reducer, better to use a reducer for long focus refractors or for Celestron HD's - they are free of coma and field curvature.

BTW. 0.33x for SCT is especially bad.


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Pablito
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Re: Quark and 2" eps

Post by Pablito »

Hi Valery. Thank you for this info. In fact, Quark will be tested also with SCT (with three front mounted mini ERFs). But trying it with refractor is veeery tempting :)


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Re: Quark and 2" eps

Post by marktownley »

Anyone know where I can get a 2" adapter for the quark then? Do daystar have them for sale yet?


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Pablito
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Re: Quark and 2" eps

Post by Pablito »

Mark, I can arrange making one unit for you.


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Re: Quark and 2" eps

Post by axlefoley »

Mark take Pablito up on his offer, very well made,,,,,,, actually perfect.


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Re: Quark and 2" eps

Post by Pablito »

Is anyone else interested in ordering 2" adapter for Quark?

Prices are ca.:
25GBP
40USD
32EUR

Shipping and PP fees included.


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