The Webcam focuser can be rotated 360°. The 60mm objective has a focal ratio of f3.75 and a focal length of 225mm. The fast focal ratio objective is the same as found in the Altair 60mm finder, and the Mini-Guider focuser can be purchased separately, or together with an Altair finder system.
The included quick-release finder base has 4x 4mm slotted holes allowing you to fit it to most telescopes on the market. The mini-dovetail wedge on the bracket will actually fit any GSO or Skywatcher telescope directly, but we suggest you use this included base because it has 2x clamping screws, for far better rigidity than standard finder bases on the market.
The adjustable tube rings are light, yet more than rigid enough to stay in perfect alignment for autoguiding. They cannot rotate like other cheaper makes because the dovetail bar they sit upon has a slight channel to accept their profile. Nylon tipped screws avoid scratching the durable high quality and moisture resistant paint on the 60mm aluminium OTA.
All objective lenses are anti-reflection coated and the tube and dewshield are internally blackened to increase contrast. This is a high quality F3.75 achromat objective, and it will deliver pinpoint stars on your finder chip on axis, performing at the resolution limit of a 60mm lens. It is far higher quality than the lenses found in cheaper, and smaller finders, and will perform extremely well at this fast focal ratio, keeping your exposure times short, and stars very bright with a small dot size - exactly what's needed for precision autoguiding.
used with SBIG STV Although a camera is clearly shown in description I could NOT get it to focus with my STV attached contacted Harrison who could not help but passed me to Manufacturer BUT again could not suggest a way to resolve. be very carful when extending as one can easily unscrew completely (01/02/2019) George Shepherd - central Scotland
Our Reply: We are sorry to hear you are having issues with focus on your SBIG camera, the miniguider does focus with the majority of cameras and eyepieces available Today.
Our standard delivery charge for most of the UK is £2.95. All orders are shipped promptly, lower value items are sent Royal Mail 1st class and higher value or larger goods are shipped via reputable courier. All goods are shipped fully insured with FEDEX, UPS, DPD and Royal Mail, we do not use budget courier services, please note we can only ship to UK mainland addresses. We are not able to ship to forwarding agents or PO boxes.
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We hold stock, dozens of telescopes and literally thousands of accessories that we ship out each business day, normally orders received before lunch are shipped that business day. We also direct ship from our UK suppliers, this means we have access to thousands of products that can ship fast to our customers.
Deliveries to UK mainland addresses are all shipped with fully insured premium services for £2.95, *some exceptions apply including many AB, FK, HS, IV, KA, KW, PA, PH, ZE postcodes. We will quote delivery charges to these areas where applicable prior to shipping (this does not normally affect lower value items shipped by Royal Mail).
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