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skywatcher 250px photography


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i have 2 adaptors for a dslr, one is the deluxe barlow and one is a celestron adaptor with no magnification.

the barlow i can get to focus but the celestron one wont, is this right??

i thought the focus issues were with the smaller scopes like the 130

thanks

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Sadly, this can be an issue with some of the larger SW Reflectors as well if you are not using the correct adapter. You should be able to get focus using a standard 'T' adapter that attaches directly to focus tube but you may not achieve focus using a 1.25" or 2" nosepiece 'T' adapter.

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The one in the picyure is the R & P so you have a Crayford which should be a lower profile. What does the Celestron adapter look like?

What have you got there that fits between the camera and the barrel of the R&P focuser. The end of the focuser is about 58mm isn't it?

With the R & P, Skywatcher supply a 58mm to 1.25" EP adapter but if you unscrew the 1.25" adapter, you are left with an expose 'male' 'T' thread and that is what I am attached to.

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The one in the picyure is the R & P so you have a Crayford which should be a lower profile. What does the Celestron adapter look like?

With the R & P, Skywatcher supply a 58mm to 1.25" EP adapter but if you unscrew the 1.25" adapter, you are left with an expose 'male' 'T' thread and that is what I am attached to.

the celestron adaptor looks like a barlow lens but hollow inside

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the celestron adaptor looks like a barlow lens but hollow inside

I think you will struggle to focus with that as I suspect the camera will be too far from the focus tube. What is the inside diameter of the connector directly on the end of the focus tube - is it by any chance 2" (50.2mm)? If it is then an Olympus 'T' adapter and a 'Revelation T Adapter 2" should resolve the issue.

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