A105M Refractor OTA
A larger aperture version of the A80M, this OTU also offers an excellent first choice as a telescope but with higher light gathering power.
The A105M is an achromatic refractor with a 105mm objective lens. Focal length is 1000mm with a focal ratio of f9.5. Its light gathering power is 225x.
The tube is supplied with a red dot finder, flip mirror, tube rings and dovetail mounting plate.
Various accessories are available for attaching photographic instruments to the telescope. Objective lens 105mm achromatic, magnesium fluoride coating
Focal length (Focal ratio) 1000mm (f9.5)
Resolving power, limiting magnitude 1.1 arc sec., 11.9
Light gathering power 225x
Tube size & weight (OD) 115mm x (L) 1060mm, 3.8kg (8.4lb)
Finderscope Red dot finder
Adapter thread / visual back 60mm on scope body. 42mm for T-mount and 31.7mm push-fit on flip mirror. 50.8mm option*
Accessories included Dovetail adapter, tube rings, flip mirror & dot finder
Photography** Prime focus, Eyepiece projection and afocal imaging
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