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Recommended Mounting Hardware for Europa 250mm


SnakeyJ

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I recently obtained an OO Europa 250mm F4.8 OTA with standard rolled OO tube rings, but no dovetail bar.   I would like to mount this to my HEQ5, which has an upgraded vixen saddle.    Looking at stock photos of this scope the OO supplied dovetails seem quite short.

Can anyone recommend a decent vixen type bar and confirm best length?   I will probably go for a dual bar (top and bottom) to improve the stiffness of the cradle.

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Okay.   I sourced another long SW Vixen dovetail (on loan) and some 1/4 x 16UNC nuts and bolts and now have the rings mounted sans radius blocks.    Somewhere I have a good length of 5mm aluminum plate that will brace the rings on the top, though need to remember where I've hidden it.

Not ideal, but should give me the chance to get the scope mounted and test.

I think what I could really use is something like this, http://www.firstlightoptics.com/dovetail-bars/william-optics-vixen-compatible-long-dovetail-plate.html - though might need to call for dimensions and some reassurance on stiffness.

...Or even this one from ADM that looks a lot more solid and robust, http://www.firstlightoptics.com/adm-vixen-type-v-series/adm-vixen-type-dovetail-with-wide-top.html

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I had the same issue, what I did was cut the bar with a radius in two attached to a aluminium bar 80mm x 600mm x 1/2inch thick and fastened the dovetail back onto the bar, ie. moved the rings apart and used a stiff piece od ali, also ordered upgraded ring fastenings from OO. Total cost was £30 or so and its worked for two years perfectly with no vib.

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