Stargazing TelescopesStargazing TelescopesStargazing Telescopes
Have A Question? Call Us
+1 703 996 3053
Mon-Fri - 8am-4pm EST

TPO 6" f/9 Ritchey Chretien Reflecting OTA Telescope

$549.00

In Stock Available for Back-orderOut of stock
Shipping calculated at checkout.
Out of stock

Delivery time to be provided upon order confirmation.

No Chromatic Aberration Coma-Free Long back focus of 230mm Fixed Primary to eliminate mirror flop Knife Edge Baffling System to improve contrast Based on George Willis Ritchey and Henri Chretien optical design,... Read more

visamastergoogle paypaypalshopify payapple payklarna-pay-lateramerican express
SKU: OS-6RCN/A
  • No Chromatic Aberration
  • Coma-Free
  • Long back focus of 230mm
  • Fixed Primary to eliminate mirror flop
  • Knife Edge Baffling System to improve contrast
  • Based on George Willis Ritchey and Henri Chretien optical design, the TPO 6" f/9 Ritchey Chretien Reflecting OTA Telescope is a versatile astrograph that can also be used for visual use. The RC Design contains a Hyperbolic shaped primary and secondary mirror to eliminate coma, chromatic aberrations, and spherical aberrations. For expert or professional astronomers interested engaged in scientific study, this telescope makes an excellent choice for astrometric measurements. Rear cell thread size is M90x1.

    TPO 6" f/9 Ritchey Chretien Reflecting OTA Telescope Highlights

    • No Chromatic Aberration: a Ritchey Chretien doesn't use lenses or corrector plates, the design doesn‚Äôt suffer from chromatic aberrations ( false color).
    • Goodbye Coma: an RC has virtually no coma
    • No Spherical Aberration: The use of hyperbolic mirrors for both the primary and secondary removes the problem of spherical aberration.
    • Long Back Focus: 150mm from the focuser or 235mm from the rear thread allows you to mount lots of imaging gear.
    • Fixed Primary: eliminates image-shift/mirror-flop and removes the need to collimate the primary mirror.
    • Knife Edge Baffling System: computer designed and optimized baffle system prevent internal reflections and boost contrast.

     

    Specifications with Optional Reducers

      • Product Number: OS-FRRC-75
      • Effective Focal Length: 1028mm
      • Effective Focal Ratio: f/6.8
      • Resulting Image Circle: 15mm
      • Reducer Backfocus: 80mm
    • Reducer:¬†Astro-Physics CCD Focal Reducer for f/9-f/18 Telescopes
      • Product Number: AP-CCDT67
      • Effective Focal Length: 918mm-1069mm
      • Effective Focal Ratio: f/6.-f/7
      • Resulting Image Circle: ¬†29.5mm-34.3mm
      • Reducer Backfocus: 67mm-101mm
      • This reducer has different effects based on the¬†spacing between the camera and the reducer. If you need assistance figuring this out, you can refer to the¬†Astro-Physics 27TVPH and CCDT67 Compression & Coverage Document¬†or contact us.

     

    Accessories Included in the Box

     Here are the adapters and accessories included from TPO when you purchase the TPO 6" f/9 Ritchey Chretien Reflecting OTA. They are listed in the same order that you would attach them to the rear threads of the telescope:

    • Two TPO 25MM Spacers for 6" RC (OS-TPORC-25MMSP)
    • TPO 50MM Spacer for 6" RC (OS-TPORC-50MMSP)
    • TPO LRS Crayford Focuser for Ritchey Chretien Telescopes (OS-CF-LRS)
    • TPO 2" to 1.25" Adapter (OS-A2125)

    It can be challenging to figure out which adapters and other accessories you need in order to use your TPO 6-Inch RC visually or photographically. Below you will find several lists that should help make that task a whole lot easier! Links to suggested or required products will be included when applicable so that you can read more about an item and easily add it to your cart. If you have any questions or concerns, feel free to give us a call, start a chat, or send us an email.

     

    Attaching the TPO 6" Ritchey Chretien to a Mount

     The TPO 6-inch RC comes with a preinstalled Vixen-style dovetail bar which will allow you attach the telescope smaller Bresser, Celestron, iOptron and Vixen telescope mounts. If you mount uses a Losmandy-Style saddle, we recommend using theADM D Series Dovetail Bar for 6" OTA's.

     

    Using the TPO 6" Ritchey Chretien Visually

    ¬†Below you will find two accessory chains that you can follow if you want to use this telescope visually ending in a 2‚ÄĚ or 1.25‚ÄĚ diagonal.

     

    Canon EOS, Nikon, Or Sony E-mount DSLR Imaging

    Below you will find the accessory chain that you can follow if you want to use this telescope with a Canon, Nikon, or Sony E-mount APS-C sized DSLRs. Items in the chain that are included as standard accessories are marked as such, otherwise, each piece will be linked to the accessory on our website. Items are listed in the order you would attach them to the telescope.

     

    Imaging With a Dedicated CCD or CMOS Telescope Camera

    Below you will find the accessory chain that you can follow if you want to use this telescope with a dedicated astronomy imaging camera. Items in the chain that are included as standard accessories are marked as such, otherwise, each piece will be linked to the accessory on our website. Items are listed in the order you would attach them to the telescope.

      • With Astro-Physics CCD Focal Reducer for f/9-f/18 Telescopes
        • Two TPO 25MM Spacers for 6" RC (Included)
        • TPO 50MM Spacer for 6" RC (Included)
        • TPO LRS Crayford Focuser for Ritchey Chretien Telescopes (Included)
        • Astro-Physics CCD Focal Reducer for f/9-f/18 Telescopes
        • The spacers that you will need will depend on several factors, how much you want to reduce the focal length by, how big is your camera sensor, the back focus of your camera, are you using an OAG etc. Generally, we recommend using the TPO M48 Spacers first then use an adapter to reduce down the thread size to get the correct spacing.

      The suggestion above is not the only solution for attaching a dedicated camera. You can a log of accessories in your imaging-train like an adaptive optics unit, field rotator, off-axis guider, or on-axis guider. If you plan on incorporating one of these accessories or still have questions about the adapters you need for your application, we recommend that you contact us. We would be more than happy to help.

    Third Planet Optics: Limited 2-year Warranty (at manufacturer's discretion). Please contact us for more details. 

    Warranty

    At Stargazing Telescopes we are dedicated to making sure our customers receive the highest quality products. If for any reason you would like your purchase repaired or replaced, all you have to do is call us at 540 253 3466 or email us at info@stargazingtelescopes.com and we will advise you on how to proceed.

    Warranties will not be valid for products that have been misused or tampered with by the customer, and each manufacturer retains the right to inspect the product to determine whether it is covered by their warranty. If an item needs to be repaired or replaced, the customer is responsible for shipping costs unless otherwise stated.

    Please note, you must have proof of purchase (copy of your receipt) in order for the warranty to be valid.

     

     

    Third Planet Optics: Standard 30 Day Return Policy. Please contact us for an RMA number. You will receive a full refund for unopened or unaltered products. If the product has been opened, a restocking fee will be charged depending on the condition of the product. 

    Return Policy:

    We aim to make returns as easy as possible at Stargazing Telescopes. You may return your purchase within the allotted time frame that each manufacturer allows.

    You will be responsible for the return shipping charges as well as a 20% restocking fee (20% of the price of product).

    To request a return please email returns@stargazingtelescopes.com and include your name, order number and date of purchase. We will also require proof of purchase, which is a copy of the receipt.

    Returns must be authorized before being sent. We will contact the manufacturer on your behalf and issue you a RMA number which is mandatory for returns.

    To be eligible for a return, your item must:

    • be unused and in the same condition that you received it.
    • be undamaged and in the original packaging.

    Products not eligible for return:

    • Products that have been used or tampered with
    • Products not in resalable condition
    • Custom orders
    • Products not in original packaging
    • Products that do not have an RMA number

    The buyer is responsible for all shipping costs and must use the shipping method as specified by Stargazing Telescopes to ensure the item is not damaged in transit and is tracked and sent safely. Refunds will be processed within 14 working days from the point we have received your return. 

    Before your refund is approved, the manufacturer will inspect and process the items which can take up to seven business days. Return shipping charges and re-stocking fees are non-refundable. Shipping charges and factory re-stocking fees will be deducted from the total refund amount. You will receive a confirmation email when your return has been processed. Refunds will be credited to the original payment method and can take up to 72 hours to reflect on your statement.

    Cancellations:

    You may cancel your order any time before your item(s) have shipped. If your items are in-stock / back-ordered there is a $20 cancellation fee applicable before your items have shipped.

    If your order has shipped, you (the buyer) will be responsible for return shipping charges (see Return Policy above for detail). Refunds will only be issued to the original payment method that was used when placing your order.

    Damages:

    Please inspect the packaging of your item(s) when it arrives, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrive damaged, please send photos to returns@stargazingtelescopes.com and we will contact the manufacturer on your behalf.

    Third Planet Optics: Depending on your location, items are shipped out in between 1-5 days. If for some reason we are out of stock on an item and that fact was not displayed on our website, we will be in contact with you via phone or e-mail as quickly as possible. We use UPS for most items, and USPS for smaller items. The carrier used is at the manufacturer's discretion.

    We provide free shipping on all orders over $99 within continental USA!

    Order Confirmation:

    You will receive an e-mail to confirm that your order has been placed. At this point your chosen payment method has been pre-authorized for your purchase.

    We will confirm with the supplier that your item(s) are in stock and available for shipment. If your item(s) are in stock we will process payment and ship your order within five business days.

    If your order is on back-order we will provide an estimated lead time. If you are happy to wait for the item, we will process payment to secure your order and ship your order as soon as it is available. If you do not wish to wait, we will void the pre-authorization and cancel your order.

    If your item is out of stock or unavailable, we will void the pre-authorization and reach out to you via e-mail. 

    Order Shipment & Delivery:

    If your order is in stock and we process the charges to your pre-authorized payment method, it will ship within five business days from the date of your order unless otherwise stated.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at orders@stargazingtelescopes.com. 

    Delivery times will vary based on your location and shipping method that our vendors use. Within mainland USA, Economy shipping generally takes five to eight business days to arrive, and Standard shipping takes approximately three to four business days. 

    Damages:

    Please inspect the packaging of your item(s) when they arrive. If you notice any damage you should make note of it when signing for delivery.  If your item(s) do arrive damaged, please send photos to returns@stargazingtelescopes.com and we will contact the manufacturer on your behalf.

    Customer Reviews

    Be the first to write a review
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday
    January,February,March,April,May,June,July,August,September,October,November,December
    Not enough items available. Only [max] left.
    Add to WishlistBrowse WishlistRemove Wishlist

    TPO 6" f/9 Ritchey Chretien Reflecting OTA Telescope

    $549.00