-20% DISCOUNT ONLY THIS WEEK! Long Perng adjustable field flatteners INFO

Discount ONLY between 22th and 28th of May, 2023
Mai 2023Optimized for f/5-f/6 real apochromats and ED-APOs.
Effective flat correction from f/4.8 to f/10 with changed working distance.
Working distance is adjustable from 55mm to 80mm.
Camera does not need to be removed


-20% DISCOUNT ONLY THIS WEEK! Long Perng adjustable field flatteners --> more infos

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Star Adventurer GTi is back in stock! --> more infos

- 8 model variants
- Stepless magnification
- Expandable from 3x to 225x
- 100mm working distance (extendable to 265mm
- Monitor, camera, special accessories


STM45 - the versatile, modular microscope family --> more infos

It can always happen that you order something, but then think about it and don't pick it up. These goods then remain with the dealer. We have some products that were ordered for Christmas but never picked up. Or the telescope was way too big -- at least, way bigger than it looked on the computer screen. We are now offering these at a greatly reduced price. Brand new, often in the original unopened packaging, with much, much cheaper!

Uncollected customer orders --> more infos

NEW! LACERTA 80mm f/6.25 and f/4.9 Flatfield APO --> more infos

- focal length 250 mm / aperture ratio f / 4,9
- true Petzval design, no flattener and no distance search needed - it fits in the focus automatically
- Extremely pure color (FPL-53 and FPL-51, 4 elements in 3 groups)
- Very well corrected and illuminated field of view of 44 mm diameter - up to the full format!!
- better transmission than a photo lens with many lenses


The cat is back: RedCat-51 is on stock! --> more infos

NEW: FW 1.30.1 with Allsky Platesolving feature. Note our set offers! (Guidescope, DewHeater and Dimmer)

MGEN-3 / FW 1.30.1 --> more infos

The PowerBank38AH sets new standards for portable power supply. It can supply up to 15A through the cigarette lighter socket and allows the simultaneous use of 3 additional USB ports (5V each), which allows for extremely flexible use.
It has a very high capacity of 144Wh /12Ah@12V /38000mAh@3.7V or /11700mAh@12V. This corresponds, for example, to tracking a Vixen GP mount for 4 full nights (incl. tracking control with MGEN autoguider), or to operating a 470 lumen LED bulb for around 24 hours without interruption.
You will receive 15% discount on the PowerBank38AH. Check out with coupon code "38AH" and redeem it immediately with the green button!


Power Station: 15% sale! --> more infos