About this product
Part Number: 4802100
New model fitted with sturdy 2.5" R&P Hex-focuser.
The Bresser Messier AR-102L/1000 Hex-Focus Optical Tube Assembly is an excellent f/10 achromatic refractor, featuring 102mm doublet objective lens, Bresser's new Hex-Focus 2-inch high precision focuser, 6x30mm finderscope, diagonal and 1.25" 26mm Plossl eyepiece.
- f/9.8 focal-ratio
- New sturdy 2.5" Hex-focuser R&P focuser accepts 2" & 1.25" eyepieces
- 6x30 straight through finder
- 1.25" Diagonal
- Cradle rings with convenient handle and piggyback camera holder (1/4 thread)
- Universal 44mm (Vixen-style) Dovetail plate with stainless steel rail
- 2" / 1.25" adapter with integrated T2 thread
What's in the box
- 102L Refractor OTA
- 1.25" 26mm SPL Eyepiece
- 2" eyepiece adapter
- 6x30 finderscope
- Tube clamp and camera adapter
- Vixen-Style Dovetail Mount with stainless steel rail
- 1.25" diagonal
|Objective diameter||102 mm|
|Focal length||1000 mm|
|Angular resolution||1.3 arc seconds|
|Finderscope||6 x 30 mm|
|Focusing system||2.5" Hexafoc|
|Weight (Incl. Accessories)||5kg|
|Dust protection caps||Dust protection caps for front lens and eyepiece holder|
Downloads / Manuals
The following manuals and downloads are available for this product:
Bresser Messier Manual (PDF)
|Average Rating (2 Reviews): |Bresser Messier AR -102 for Cak imaging
13 April 2021 | Nigella
I thought I'd right a review from a different viewpoint as there aren't many reviews about using telescope's for calcium k imaging. The telescope gives fantastic views on the monitor and image's when used with a calcium k filter. The focuser is well made and adjustments made via viewing the monitor screen. Calcium K line wavelength really isn't a visual wavelength as it's near the ultraviolet part of the spectrum but can be seen using a webcam and monitor. If you're looking for a telescope for this kind of thing then this really is a great scope.
07 April 2021 | Colin
For the money, I don't think you can go far wrong with one of these scopes. The build quality seems very good and it seems they have elected to spend more on the scope itself and save on the accessories but it's unlikely to be someone's first rodeo so buyers will probably have better already. As a bonus, it came with a solar filter that wasn't mentioned anywhere, so that's a new field I'd not really considered trying now open to some extent.
Very little in the way of plastic in the construction, and it feels pretty substantial: only the finderscope mount feels a bit flimsy and vulnerable hanging off the side a fair way as it does.
Focusing mechanism isn't bad out of the box, and the upgrade to make it better is less than half the cost of upgrading a competitor's to a Crayford.
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