What is the primary use for the Player One 1.25" Extender?
Its main purpose is to add physical length to your optical train to help a guide camera reach focus. This is most often needed when using an off-axis guider (OAG) or a separate guidescope where the guide camera cannot be positioned far enough back to achieve a sharp image.
What threads does the Player One 1.25" Extender use?
The extender uses standard 1.25" filter threads. It has M28.5 x 0.6 female threads on one end and M28.5 x 0.6 male threads on the other, allowing it to screw directly onto 1.25" nosepieces, filters, or other compatible accessories.
Will the 1.25" Extender help me focus my guide camera in a Celestron OAG on an EdgeHD 800?
Yes, this is a perfect scenario for this extender. If you have adjusted the helical focuser on your Celestron OAG to its limit and still can't get sharp guide stars, adding this extender will provide the extra outbound travel needed to bring the guide camera's sensor to the focal point of the pick-off prism.
Can I use the Player One 1.25" Extender with a planetary camera in my 10" f/4 Newtonian?
While designed for guiding, you can use it with any 1.25" camera if you need more out-focus travel. However, in a fast Newtonian, you typically need more *in-focus* travel, not out-focus. This extender would likely move your planetary camera even further from the focal plane, making it less likely to reach focus.
Can I thread a 1.25" filter onto the Player One Extender?
Yes. The M28.5 x 0.6 threads are the standard for 1.25" filters. You can thread a filter onto the male end of the extender or into the female end, depending on your desired configuration.
Can I stack multiple Player One 1.25" Extenders for more length?
Yes, the male and female threads allow you to stack multiple extenders if you need significant additional spacing. However, be mindful that creating a long, unsupported chain of accessories can introduce flexure into your imaging train.
