Manufacturer: William Optics
Product number: L-RC51

EUR 1.190,00


incl. 19 % VAT (DE)  
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rating: 5.0 of 5
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William Optics RedCat 51 V.2.5 Travel Apochromat for Astrophotography and Nature Photography
This apochromatic refractor is intended for all astrophotographers and nature photographers who are searching for a transportable and tack-sharp telephoto lens. Due to the 4-element Petzval design, a fully corrected image field of 44 mm diameter without chromatic aberration is achieved. Thus even the deployment of full-frame cameras is possible. However, with 225 mm length, the apo ist not larger than a normal telephoto lens. But it can do more.

The application areas of the RedCat 51 apo:
Astrophotography

With 250 mm focal length and fast f/4.9, short exposure times are possible. The working distance of 55 mm allows using all popular astro cameras and DSLR/SLR cameras. Due to the 2" filter thread which is integrated in the helical focuser, using nebula filters is also possible. Include in the scope of delivery is a Bahtinov mask. The mask helps when focusing and is integrated in the objective cap.
Countryside photography and animal photography

The RedCat 51 is also perfect for, for example photographing animals. The slip-proof helical focuser allows focusing within seconds. The image quality will impress you.

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin
Aperture:51 mm
Focal length:250 mm
Focal ratio:f/4.9
Optical design:4 elements Petzval design
Glass types:FPL53 and FPL51
Illuminated and corrected image field:44 mm diameter
Camera connection:M48x0.75 thread (male)
Working distance from the M48x0.75 thread:55 mm Backfokus
Additional thread:M56x0.75
Filter thread:2" filter thread in the adapter from M56 to M48
360° Rotation:yes
Base plate:suitable for Vixen style saddle plates, Arca-Swiss style tripod heads and photo tripods
Diameter of dew shield:80 mm
Tube length:225 mm
Tube weight:1.5 kg
RedCat 51 travel apochromat
M48 camera mount
Patented Bahtinov mask
Dovetail Vixen / Arca Swiss style
Nylon carring case

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin


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Reviews

Written by Beat Wirthmüller
on 2022-01-20

"Erstes Teleskop für Wide Field Astrofotografie - sehr solide Verarbeitung, hochwertige Optik, durchdachte Details wie integrierte Bahtinov-Maske zur Scharfstellung und Fixierung an Montierung mit Vixen/Arca-Swiss Platte, Transportkoffer und natürlich das süsse Katzenlogo 😉"

Written by Ingo Heide
on 2021-12-22

"Ein wirklich tolles Teil. Die First Lights haben mich schon richtig angesprochen. Ich freue mich auf viele weitere klare Nächte mit meinem neuen Kometenjäger ;-)"

Written by Marc Rieken
on 2021-08-10

"Sehr zufrieden nutze es mit star adventurer und asi294 als Reise setup. "

Written by Klaus Weiskopf
on 2021-05-28

"Solide Verarbeitung, perfektes Finish! Die Taukappe (Streulichtblende) könnte gerne leichter sein."

Written by Ufuk Sahin
on 2020-05-20

"Good for beginners and intermediate level skilled astrophotographers.Easy to start astrophotography"

Written by Kristian Vedel
on 2019-11-29

*****

Written by Tatar Andrei
on 2019-09-27

"the best scope ever!"