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TS-Optics 61EDPH - 5-Element Flatfield Apo 61 mm Aperture F/4.5 included corrector ( pictures are made with TS61EDPH)
The 5-element apochromat with 61 mm aperture and 274 mm focal length has been developed by Teleskop-Service for astrophotography.

? Aperture: 61 mm

? Focal length: 274 mm

? High focal ratio f/4.5 for short exposure times

? Illuminated and corrected image field of 44 mm diameter - usable up to full-frame size format

? 5-element system with dublet FPL53 lens and 3-element corrector

? 2.5" RAP dual-speed focuser with 360° rotation holds even heavy cameras

? CNC tube ring with universal dovetail bar with photo tripod connection and carrying handle is included in the scope of delivery

? Viewfinder shoe for viewfinders and mini telescopes is integrated at the CNC ring.

? Retractable dew cap

? Simple camera adaption via the M48 connection thread - working distance 55 mm

? 2" nebula filters can be easily adapted

TS-Optics 61EDPH 5-Element FPL53 Flatfield-Apochromat

The TS-Optics 61EDPH is designed for astrophotographers and nature photographers. It convinces with its compact dimensions and its high-quality 2-element FPL53 lens (glass from Ohara - Japan). The 3-element corrector 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. The fast aperture ratio of f/4.5 allows short exposure times. The 61EDPH is a fast and portable travel apo for astrophotography.

Connecting cameras to the apo:

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. This is ideal for all astro cameras and DSLR / SLR cameras. Matching T-rings can be found in the accessories section.

The TS 61EDPH provides a convenient connection for 2" nebula filters.

Simply unscrew the corrector from the focuser and you will find the 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 does not change. You can continue to use your adaption, whether with or without a filter.

Attaching the TS 61EDPH to mounts

The CNC tube ring has a GP/EQ5 style level dovetail bar at the base. You can attach the telescope to the appropriate quick couplings of mounts and travel mounts such as the Skywatcher Star Adventurer. Matching saddle plates can be found in the accessories section. In addition, the dovetail also has a 1/4" photo thread. The apo fits, like a telephoto lens, directly on every photo tripod.

The carrying handle is a real multifunctional part

The handle not only facilitates the mounting on the photo tripod, it is also the base for further adaptions. The handle has a long hole and a 1/4" photo thread. For example, you can mount a ball head on it and mount a second camera in parallel. Next to the grab handle there is a viewfinder shoe for finder scopes, mini telescopes or sighting devices.

Observation with the TS 61SDQ

Although the apochromat was developed for astrophotography, it also allows observation. You have two choices. Unscrew the photo corrector. You have an M63x1 female thread available. With an optional 2" adapter, like M63-2 (see accessories), you can adapt a zenith mirror or an Amici prism and make beautiful nature, landscape and astro observations. You can use both 2" and 1.25" accessories.

technical Details:

Aperture:61 mmFocal length:274 mmOpen ratio:f/4.5Illuminated and corrected image circle:44 mmOptical system:5-element system in 2 groupsLens:2-element FPL53 ED lensConnection at camera side:M48x0,75 external thread (male)Working distance:55 mm from the M48 threadAuxiliary thread:M63x1 internal thread on focuser - max. 115 mm back focusFocuser:2.5" RAP rack and pinion focuser with micro speed reduction and 360° rotationLength:approx 264 mm with dew cap insertedHeight:approx 141 mm including dovetail and carrying handle

Scope of delivery:
? 61EDPH apo
? CNC tube ring with viewfinder shoe, EQ5 style dovetail bar and carrying handle
? 3-element photo corrector integrated

Optional offer:

TS-Optics padded Transport bag TSBAG80 ( for Apo with Tripod and Accessorries)

Shipment details
We will ship the parcel fully insured and traceable using UPS.

We ship from Germany. For this reason you will need to pay import taxes for the item. The taxes are not included in the purchasing price and are payable directly to the shipping company. If you wish to know in advance how much the taxes and duty charges will be please ask your local customs office!

For a selection of further APO Telescopes  + Accessorries … please have a look at our Shop! 
For this please visit Telescope-Express,com, then have a look by Telescopes

Check out my other items!

Warning for Solar Observations: Never look directly at the sun with any telescope or binocular without the proper filters!




Your Telescope-Service Team

Filed under: Eyepieces & Accessories