Speed up your telescope's focal ratio and achieve edge to edge sharpness with the Starfield 0.8x Reducer for 70-102mm Refractors (2")from Starfield. This 2" combination reducer/flattener has up to 17mm of adjustment for back focus, saving you the trouble of using adapters and spacers with your accessories. Simply subtract the width of any filter wheels, rotators, etc. from your back focus distance (usually 55mm) and adjust the reducer accordingly.

Filters can be added inside the reducer. Its three lenses, including one extra-low dispersion element, are antireflection multicoated and the inside of the reducer is blackened. The reducer has an M63 x 1 external thread for the telescope side and M48 x 0.75 external thread on the camera side.

Up to 17mm Adjustable Back Focus    Doubles as Field Flattener    3 Lenses with ED Element    Multicoated Lenses    Antireflection Blackened Interior    Telescope Connection: M63 x 1 Male    Camera Connection: M48 x 0.75 Male

Related Questions and Answers

Q: 1. Does it work with Red Komodo and Canon Primes?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (EF to R Mount) can mount onto the RED DIGITAL CINEMA KOMODO 6K Digital Cinema Camera (Canon RF), but its designed for the Venus Optics Laowa 24mm f/14 Probe Lens for Canon EF, not general Canon EF primes. See the link below: https://bhpho.to/3FWfW0S

Q: 2. When mounted on a canon cne 18-80 lens on a lumix bs1h camera, Does the quality of the image will weaken becuase the glass ?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (EF to L Mount) is only meant to mount the Probe Lens from Venus Optics and none other. We cannot guaranty any quality results of mounting another lens onto your desired system with this adapter.

Q: 3. Can I use this with Astera AX1 tube?

A: No, the Gravity Stands SF 36 Z 38 M Reducer Flange (35mm to 3/8" Male) is a 3/8" thread. The Astera AX1 has a 1/4-20" thread mount.

Q: 4. Does it work with the periprobe lens?

A: Yes, this adapter will work with EF-Mount PeriProbe lenses.

Q: 5. Can it be used with Sony FE lenses too or just the probe lens?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (BH #VE07FREF2E) is only designed for use with Laowa's Probe lenses. We would not recommend using it with any other lenses.

Q: 6. can i use this focal reducer with Sony FX30 "APS-C camera" and the laowa probe E mount ?

A: The Venus Optics Laowa 0.7x Focal Reducer for Probe Lens (BH #VE07FREF2E) is an EF to E mount, so you'd have to pair it with the EF mount version of the Venus Optics Laowa 24mm T/14 2x PeriProbe (VE2414PEF) for use with the FX30.

Q: 7. were do the batteries go?

A: The batteries go on top of the tripod- under a cover.

Q: 8. Will this telescope take a 2 diagonal?

A: Yes this scope will fit a 2 Diagonal. It comes with an adapter to accept 1.25 and 2 eyepieces.

Q: 9. Can i use this with a PC laptop instead of smartphone?

A: Hi,The telescope works through the free app SkyPortal, which is downloadable on iPhone or iPad or android phones. No app is made for pc or laptop as of my recollection. Good luck

Q: 10. What is the back focus distance of this reducer?

A: With the focal reducer, it is 63.5mm.