The TPO 2" f/5 Focal Reducer will help to lower the focal ratio of your optics. The outside thread connection of M48 x 0.75 will fit most 2" eyepieces for visual use, too! Now you can connect your CCD camera and any 2" threaded camera adapter, just by using the TPO 2" Focal Reducer. Guess what? It even allows the connection of most 2" filters, too!
Third Planet Optics 2" f/5 Focal Reducer
- Additional Information
SKU OS-FR2 Manufacturer TPO Barrel Size 2" Warranty 1 Year Warranty
- Included Items
- TPO 2" Focal Reducer - 0.5X
- Questions & Answers
Product QuestionsWhat is the length from center of reducer lens to imaging focal point for exactly 0.5x magnification? I see some that are 79mm and such. Just trying to figure out spacers. thanksQuestion by: DWKDiver on May 14, 2014 12:50:35 PMQuestion by: The Dude and yes I abide on Oct 10, 2014 3:54:39 AMNo, this reducer is designed just for visual use or imaging on f/10 SCT's with very small CCD sensors. There is another TPO RC reducer which is designed to work with sensors up to 15mm in diameter on an f/8 RC telescope: http://www.optcorp.com/opt-field-flattener-focal-reducer-0-75x-2-rc-scopes.html.Answer by: Chris (Admin) on Oct 10, 2014 5:52:32 AMShould the TPO focal reducer work well with the Orion ED80T CF Triplet Apochromatic Refractor Telescope?
Question by: Carlos on Sep 12, 2016 9:09:00 AMThis reducer was designed for ~f/10 Cassegrains with the reducer threaded directly onto the eyepiece. This cannot reach focus with a diagonal on the refractor you mention, and it is not designed for large sensors as it is not a reducer/flattener.Answer by: Chris Hendren on Sep 12, 2016 1:20:00 PMQuestion by: Ram Samudrala on May 30, 2016 4:29:00 AMThis reducer will not connect to the back of your telescope. However, it will attach to a 2" nosepiece on an eyepiece or camera, which can then be slid into a diagonal (which comes with the scope) or a 2" receiver adapter that you would need to purchase separately.Answer by: Chris Hendren on May 30, 2016 11:05:00 AMQuestion by: The Dude and yes I abide on Oct 9, 2014 4:06:29 AMThe manufacturer does not give any specifications, but given the fact that it is a reducer rather than a reducer-corrector the corrected field for imaging can't be larger than around 10-12mm when used on an f/10 SCT at ideal spacing, although the illuminated field is much larger. Adjusting spacing by moving the reducer closer to the camera will lessen the reduction but increase the illumination and image circle slightly.Answer by: Chris (Admin) on Oct 9, 2014 11:39:36 AMQuestion by: Curtis on Feb 20, 2016 12:28:00 PM
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