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This small wide field APO refractor is a really nice imaging scope, provided that the flattner is used and at the correct spacing. It is a 66mm f5.9 OTA doublet APO. Sinc it is a doublet the flattner is needed to make stars round also at the corners. A manual can be viewed here.
Below is an sub-exposure taken with the WO66 (with flattner and FLI ML8300 camera). The only processing made is calibration (flat, dark and bias) and stretching. Click on it to open up a full resolution image.
Except for the accessories below I also have all the necessary adapters and connectors to attach e.g. the Canon 40D to the WO66 including the necessary spacing parts for the falttner.
Except for the William Optics 66mm Zenithstar doublet APO, with original manual focuser (now removed), travel box, clamp (now removed), and the lens cover it comes with the following non-standard accessories:
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TSFlat2 flattner for refractors (see image). This field flattner works very well with the WO66. It is important that the spacing between the sensor and the thread of the field flattner is correct (128mm for the WO66). Thus there are some adapters that are included. It sells for 1700SEK (199EUR) excluding the adapters. Including the adapters it is ca 2200SEK (250EUR).
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Red dot finder - TSRDAV (see image). Helps in aiming the telescope in the correct direction. On teleskop-express it sells for 550SEK (66EUR)
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MoonLite CF Model (2 inch format) Refractor Focuser (see image). This focuser is controled from a PC and now attached to the OTA (the original manual focuser tags a long as a separate piece. The focuser is bought directly from Moonlite. The cost for a new one focuser including hi-res stepper motor with MoonLite mini controler is 4600SEK (715USD).
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Losmandy rings (see image). As can be seen here and here a pair of these rings costs ca 500SEK (80USD).
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William Optics 2" extender tube (see image). Needed to get the correct backfocus. Sells for 400SEK (63USD) on Amazon.
At The WO66 is discontinued so it is difficult to find a new-price. After some googling I found a couple used ones for sale at ca 2200SEK (250USD). The assecories above would sell for ca 8000 if new. Adding the WO66 I am selling the package listed above for 6000SEK.
