TS-Optics 61 EDPH II - 6 Element Flatfield APO (Triplet)
TS-Optics 61EDPH II - 6-Element Flatfield Apo
The TS-Optics 61EDPH is specifically designed for astrophotographers looking for fully corrected wide field views of some of the larger night sky targets. Larger galaxies such as Andromeda for example, frame up beautifully with these premium quality Triplets. Its compact dimensions and its high-quality 3-element FPL53 lens (glass from Ohara - Japan) has been specially developed for this APO and produces a corrected image field with 44 mm diameter and without chromatic aberration - ideal for full-frame cameras and the fast aperture ratio of f/4.5 allows for short exposure times.
Important: The corrector can be connected to the focuser in two ways but the correct way is to ensure the long part points into the drawtube and the short part towards the camera.
Astrophotography Cameras: An M48x0.75 thread is available on the back of the sturdy 2.5" focuser. The working distance from this thread to the camera sensor is exactly 55 mm making it ideal for all astro cameras and DSLR / SLR cameras.
The TS 61EDPH also provides a convenient connection for 2" nebula filters. All you need to do is simply unscrew the corrector from the focuser and you will find an M48x0.75 female thread on the telescope side. Simply screw in the nebula filter and then screw the corrector back into the focuser. The working distance of 55 mm still remains the same.
Mount Connection: The CNC tube ring has a GP/EQ5 style dovetail bar at the base. You can attach the telescope to the appropriate saddle of various mounts, the dovetail also has a 1/4" photo thread which means the small APO fits just like a telephoto lens, directly on a photo tripod too.
Multifunction Carry handle: The handle not only facilitates the mounting on a photo tripod, its also the base for further adaptions. The handle has a long hole and a 1/4" photo thread so you can mount a ball head onto it and mount a second camera in parallel. Next to the grab handle there is a viewfinder shoe for a finderscope or guidescope.
Aperture: 61 mm
Focal length: 274 mm
Open ratio: f/4.5 effective
Objective f/Ratio: f/5.5
Corrector: Reduction factor x0.81
Illuminated and corrected image circle: 44 mm
Optical system: 3-element system in 2 groups
Objective lens: 3-element FPL53 APO lens
Connection at camera side: M48x0,75 external thread (male)
Working distance: 55 mm from the M48 thread
Auxiliary thread: M63x1 internal thread on focuser - max. 115 mm back focus
Focuser: 2.5" RAP rack and pinion focuser with micro speed reduction and 360° rotation
Length: 264 mm with dew cap inserted
Height: 141 mm including dovetail and carrying handle
Weight: 1.8 kg (1.35 kg telescope with dovetail - 0.45 kg corrector)
Dew cap diameter: 90 mm
Lens diameter of the corrector: 53 mm (telescope side) 48 mm (camera side)
61EDPH APO Refractor
CNC tube ring with viewfinder shoe, EQ5 style dovetail bar and carrying handle
3-element photo corrector integrated
Dust caps for objective and camera connection
Adapter M63 to 2"
Adapter 2" to 1.25"
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.