PT
Typical questions
Here are some answers to some questions we are being asked:
Q: I have a 6" F/5 Newtonian - How faster is the 2.8-8 ED POWERNEWT Astrograph?
A: The calculation is: (F5/F2.8)^2=3.2, meaning that instead of 3.2 hrs of exposure with your F/5 scope, you will now need only 1hr. Furthermore the 8" aperture (in comparison to 6") will give you far better resolution (read: details !!) in any DSO you'll image.
Q: Will the POWERNEWT RC (the reducer integrated with the 2.8-8 ED POWERNEWT) work with other Newtonian telescopes?
A: You're now touching upon an issue that took up much of our efforts in designing, testing and QA! The POWERNEWT RC also serves as a focal reducer, which dictates accurate distances set up between the focal plane and main mirror, in addition to an accurate focuser made to size, fit with the right dents placing the POWERNEWT RC at exactly the correct location, while keeping it from any accidental fall into the OTA. Therefore, if all luck is on your side, the POWERNEWT RC might work with another Newt, but there are rather hight chances that it won't.
Q: Can I use a filter wheel on the 2.8-8 ED POWERNEWT Astrograph?
A: Yes! - The back focus from the POWERNEWT RC to your camera's chip is 55mm. This distance can be used for either a spacer or for other accessories. Note, that if you plan on using a Canon EOS, this may not be possible, as the POWERNEWT RC spacing is pre-calculated to fit directly to your T-Ring, thus leaving no additional space for additional accessories to be fit in. You will still be able to use a clip-in filter, but no filter wheels. Be advised to tell us, upon placing the order, which camera you plan to use, and we will see you are given the right advice, as relevant.
Q: Is the 2.8-8 ED POWERNEWT Astrograph suited for visual use?
A: Not at the F/2.8 mode. For visual use you are required to thread out the POWERNEWT RC and operate at F/4, while using a special adapter (provided) to attach an eyepiece for viewing.
Q: My camera's back focus distance is 26mm. What adapter shall I need for the spacing to be accurate?
A: The total distance from POWERNEWT RC to your camera chip should be 55mm; therefore, the adapter you need is: 55mm-26mm=29mm
Here are some answers to some questions we are being asked:
Q: I have a 6" F/5 Newtonian - How faster is the 2.8-8 ED POWERNEWT Astrograph?
A: The calculation is: (F5/F2.8)^2=3.2, meaning that instead of 3.2 hrs of exposure with your F/5 scope, you will now need only 1hr. Furthermore the 8" aperture (in comparison to 6") will give you far better resolution (read: details !!) in any DSO you'll image.
Q: Will the POWERNEWT RC (the reducer integrated with the 2.8-8 ED POWERNEWT) work with other Newtonian telescopes?
A: You're now touching upon an issue that took up much of our efforts in designing, testing and QA! The POWERNEWT RC also serves as a focal reducer, which dictates accurate distances set up between the focal plane and main mirror, in addition to an accurate focuser made to size, fit with the right dents placing the POWERNEWT RC at exactly the correct location, while keeping it from any accidental fall into the OTA. Therefore, if all luck is on your side, the POWERNEWT RC might work with another Newt, but there are rather hight chances that it won't.
Q: Can I use a filter wheel on the 2.8-8 ED POWERNEWT Astrograph?
A: Yes! - The back focus from the POWERNEWT RC to your camera's chip is 55mm. This distance can be used for either a spacer or for other accessories. Note, that if you plan on using a Canon EOS, this may not be possible, as the POWERNEWT RC spacing is pre-calculated to fit directly to your T-Ring, thus leaving no additional space for additional accessories to be fit in. You will still be able to use a clip-in filter, but no filter wheels. Be advised to tell us, upon placing the order, which camera you plan to use, and we will see you are given the right advice, as relevant.
Q: Is the 2.8-8 ED POWERNEWT Astrograph suited for visual use?
A: Not at the F/2.8 mode. For visual use you are required to thread out the POWERNEWT RC and operate at F/4, while using a special adapter (provided) to attach an eyepiece for viewing.
Q: My camera's back focus distance is 26mm. What adapter shall I need for the spacing to be accurate?
A: The total distance from POWERNEWT RC to your camera chip should be 55mm; therefore, the adapter you need is: 55mm-26mm=29mm
Q&A