T2/T2 extension tube 21 mm (T2 inside, T2 outside)

Various image plane and coma correctors often provide optimal correction at a sensor distance of 55 mm, meaning that the popular 17.5 mm backfocus ZWO and ToupTek astro cameras require a 37.5 mm extension arm to set the ideal distance. This distance can be achieved using this 21 mm long extension and the 16.5 mm long M48/T2 extension.

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Discounted prices valid with the purchase of the main item, only.

M48/T2 extension tube 16.5 mm (M48 inside, T2 outside) 14.00 € Add to cart