Unfortunately the measurements work against me! Though the measurement a the Focuser is 125mm and the bit I have to pay for... The lens is 102mm! I took your suggestion, I attempted to remove the dew shield, it was stuck fast. I managed to confirm the size of the objective by very carefully lowering a 120mm piece if soft plastic into the void of the dew shield, measuring determined that the objective is 104.
The bugger is this, I didn't pay very much for the scope. The Focuser is really nmarginal. The tube size internally is 125mm meaning I need to shell out $250 odd for a new Focuser due to the size of the tube.
Photos should be attached. Many thanks for the heads up. Cheers!
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