놀고있는 8인치 경통 두개를 어찌할까 고만하던중에...
focuser의 교체의 필요성을 느끼고 여기저기 검색해봤습니다.
사진촬영용으로 2인치 접안부는 필수일것 같고...
vertical loading capacity도 5파운드혹은 그이상이라고 하니... ^^
괜찮아 보입니다.
일단 되는 것 부터 하나하나 고쳐나갈 생각입니다.
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MoonLite Dual Rate Crayford Focuser (Model CR2) Specifications
$265 + option
- 1.45" low profile, Zero backlash, No image shift crayford design.
- 2" travel, 3.3" long draw tube (Standard), Min racked down height 1.45" , Max rack up height 3.45"
- Vertical lifting capacity is 5 lbs. and is user adjustable for even greater capacity if needed.
- Super smooth focus rate is .58" per revolution on standard side.
- Inline slow motion has an 8 to 1 ratio.
- Flat base dimensions are L=3.5" W=2.9" H=1.45"
- Weight: 14.8 ounces.
- Tip/tilt focuser alignment screws located in each corner of the base.
- Sealed precision stainless steel bearings with lithium grease.
- Base is highly polished, red anodized 6061 aluminum.
- Draw tube, and adapter is highly polished, black anodized 6061 aluminum. (The flat on the draw tube is hand polished perfectly smooth which is why our focusers are so smooth-- No machine marks are left on the draw tubes' machined flat surface. This allows very small focus adjustments to be made without any sticky or notchy feel to the user.)
- Knobs are 1" knurled 2024 polished aluminum.
- All hardware is stainless steel.
- Thumb screws are black nylon.
