This larger OAG is the latest variant with a larger prism size of 12x12 mm. The larger free opening brings a larger field of view when guiding. It is easy to use and suitable for users who are interested in photography with a longer focal length telescopes. To take full advantage of this accessory, ZWO recommends combining it with large format cameras.
Lightweight and high quality, 17.5 mm thickness
Prism size: 12x12 mm
The effective translucent aperture is 11.7mm *
Can be used to connect the main camera and tracking camera at the same time. No guide telescope required.
Comes with an M48 tilt adapter (5mm).
Instructions for use:
For guiding, the OAG-L can only be used with ASI Mini cameras such as ASI174MM Mini, ASI290MM Mini and ASI120MM Mini.
Considering the large prism size, ZWO does not recommend using OAG-L with telescopes whose optical path is smaller than M48.
It is recommended to use it together with the 2" EFW or the 7x36 mm EFW as well as with APS-C cameras (ASI2600) or full-frame cameras (ASI6200/2400).
If the thread of your telescope side is M48, you do not need to remove the M48 tilt adapter supplied with this OAG. Otherwise, you will need to remove it and use a different tilt adapter on the corresponding thread of your telescope.
Connection to telescope: M48x0,75 female thread
Connection on the camera side: For ZWO EFW 2" or 36 mm
Optical path with tilt adapter: 22.5 mm
Optical path without tilt adapter: 17.5 mm
Optical path with tilt adapter (5 mm), optional EFW (20 mm) and optional cooled camera (12.5 mm): 55 mm
Prism size: 12mm x 12mm
Free opening prism: 11.7mm x 8.3mm
Suitable guiding cameras: ASI Mini Cameras
Please note: If you install the OAG-L in your optical beam path, please make sure that the prism does not block the camera sensor. You can use the guide screw to adjust the focus length of the tracking camera.
Please make sure that the distance from the prism to the main camera and the tracking camera is the same.
Please Note: Items in stock and ready for dispatch immediately are usually delivered within 24-48hrs. Some items may be 'Special Order Items' and require additional lead time before being dispatched eg. 5 - 10 Working days - This will be highlighted on the product page before purchase.
All orders are shipped using our reputable courier partners to ensure your items arrive safely and promptly. While we do offer International Delivery, we are unable to ship large Telescopes and Mounts outside of Ireland.
REPUBLIC OF IRELAND
Est. Delivery Time after Dispatch: 24 - 48 hrs
Standard Express Shipping: Ireland Nationwide: from €9.95
Note: Larger telescopes which contain multiple boxes include an additional surcharge. Shipping is calculated automatically at the checkout.
- CLICK & COLLECT -
You can also avail of our FREE 'Click & Collect' service at the checkout, where you can order online and collect from our head office. Depending on the items and availability, these can be ready for collection within a few hours. "NOTE: Please wait until we let you know your order is ready before you arrive, to arrange a suitable time for collection."
Est. Delivery Time after Dispatch: 24 - 48 hrs
Standard Express Shipping: Norther Ireland: from €19.50+
Standard Express Shipping rate applies up to a max order weight of 30kg Nationwide. - Large heavy items from 30kg+ include an additional surcharge, depending on the overall weight.
Unfortunately due to Brexit we are currently unable to ship to Mainland UK at this time.
Est. Delivery Time after Dispatch: 24 - 72 hrs
Standard Express Shipping: European Union: from €18.95+
Shipping available for items upto a max order total weight or volumetric weight of 27kg.
If your country is not listed below please contact us for more information.
Standard EU Delivery Regions: Germany, France, Belgium, Poland, Luxumbourg, Netherlands, Sweden, Denmark, Portugal, Spain, Austria, Italy, Poland, Czech Republic, Croatia, Malta, Greece
US & CANADA
Est. Delivery Time after Dispatch: 48 - 72 hrs
Standard Express Shipping: US & Canada: from €28.50+
Shipping service available for items upto a max order total weight or volumetric weight of 20kg.
* Customs / Import duties may apply in these regions. For more information please contact your local tax/customs office.
IMPORTANT: Its essential that when placing an order, you include a valid 'Contact Telephone Number' for the delivery address or for the person receiving the item. This is necessary to avoid potential delays or problems with your delivery.
Please Note: Delivery times listed above are estimated. These are calculated from when your order is Completed & Dispatched (not from when the order is placed) and times may also vary for some remote post codes. Delivery service takes place Mon-Fri (excl. Bank/Public Holidays).
Shipping Disclaimer: All of our parcels are sent via a 3rd party registered courier service to ensure safe and prompt delivery. While we endeavor to ensure that all parcels are delivered within the specified time frame, 'Horizon Astronomy' can not be held responsible for delays due to adverse weather conditions or other courier/technical related issues outside of our control.