TAKAHASHI
* NEW * MICROFOCUSER FOR SKY 90*
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The True Technology Microfocuser for Sky 90 is not an add-on, but is a minor modification to the focus assembly of the Sky 90. A high quality 6:1 focus reduction is installed, providing both normal (coarse) focus by large focus knobs on either side, or geared one sixth speed using the small knob on the right hand side. The gear reduction also results in the force required to turn the knob being reduced by 6 times, enabling critical focus adjustment, especially on high power planetary observation to be effected with the minimum of vibration and with high accuracy due to the gear reduction.
A. Rear view of the microfocuser showing the compact arrangement. Note that the body of the reduction unit (to left of the inner right-hand knob)is fixed directly to the focuser housing, rather than anchored far out via a stay bar. This way there is no flexure and thus no resulting backlash
B. Side view of microfocuser assembly
C. Close-up of microfocuser assembly
Cost of microfocuser upgrade to Sky 90, including VAT and UK mainland postage £ 75
If the upgrade is done at time of ordering a new Sky 90, there will be no further charge for postage or delivery. If an existing Sky 90 is to be upgraded the green focuser assembly should be returned (at owner's expense) to ourselves for the upgrade. For these retro-upgrades there is an additional £ 4.50 postage charge
In due course we will offer microfocuser upgrades for other Takahashi models. Please check this webpage for updates
to place an order e-mail here