Telescope-Service: Various Adaptors

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.......................... Adaptors

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For many astronomical and other applications you will need adaptors. There are hundreds of adaptors in our product range alone and in many cases it is just easier to request which adaptors you will need for your particular application by e-mail.

Below you will find our most popular and most important adaptors for various purposes. If you are not certain whether a particular adaptor is the right one for you please don't hesitate to ask!


Photographical Adaptor Prime focus adaptor, eyepiece projection adaptor, C-Mount adaptors	Deluxe Variable Projection Adaptor Accepts larger 1.25" eyepiece up to 40mm focal length	T2 on 1.25" Adaptors with additional T2 male thread. Two lengths available.	2" on 1.25" Adaptors with filter thread and compression ring.

T2 on 2" and SC-Thread on 2" 2" eyepiece clamps with different threads. With compression ring	Extension Tubes 2" with compression ring. Different lengths available	Prime Focus Adaptor 2" on T2 With safety undercut and filter thread	M60 on T2 Adaptor with 2" filter thread. Fits many focusers directly.

TS Rotation System 360° rotation, quick release, with 2" filter thread	Universal Camera Adaptor for adaptation of compact digital cameras	BAADER Adaptor System a very large number of adaptors for all applications	Further Adaptors see our new online shop!

TS-PA ... Eyepiece Projection and Prime Focus Adaptors

TS PA 1 - explo - full view

Left: TS FA 1 ( 1.25" on T2 )	Right: TS PA T ( T2 on T2 )
both adaptors combined form the TS PA 1 projection adaptor

TS PA 1 with eyepiece inside

Projection adaptor TS PA 1 with eyepiece inside

The 1.25" barrel of the eyepiece is clamped with the thumbscrew you can see on the right side.

Adaptors for Eyepiece Projection and Prime Focus Photography

All adaptors are made of metal and precisely machined. All relevant surfaces are black.

What is Prime Focus Photography?

Prime focus photography can only be done with SLR or DSLR cameras or other cameras that do not have an objective lens. Then the telescope itself serves as a tele lens for the camera. If your telescope has a focal length of 1000mm for example it serves as a 1000mm tele lens.

What is Eyepiece Projection Photography?

An eyepiece is put between the camera and the telescope by means of a suitable adaptor. Then the eyepiece serves to enhance the magnification (or the effective focal length) of the telescope.

The adaptors here are explicitly meant for SLR and DSLR cameras without an integrated objective lens. Compact digital cameras also require eyepiece projection, but different adaptors are used for that purpose.

schematic of TS PA 1 in use

TS FA 1

TS PA T

T2 Ring

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C-Mount Adaptors

C-Mount Adaptors for Telescope Connection

The C-mount thread is frequently used in CCTV cameras. You can of course also connect such a camera to a telescope to use it as a very long focal length tele lens.

We offer adaptors with T2 female thread or with 1.25" barrel.

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Lens Adaptors For CCTV Cameras With C-Mount Thread

If you own a good quality lens (e.g. from an SLR camera) that you also wish to use with your C-Mount camera then we offer fitting adaptors. These adaptors are available for many lenses. Unfortunately no adaptors are available for the very popular Canon EOS lenses.

Item No.	Short Description	Price - Euros incl. VAT
CMount-M42	C-Mount adaptor for lenses with M42x1 thread (e.g. Pentax M42)	29.-
CMount-Bajonett	C-Mount adaptor for camera lenses. Available for: Pentax K , Ricoh , Nikon , Canon , Minolta MD , Olympus	39.-

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Variable Eyepiece Projection and Prime Focus Adaptor 2"

The TS VPA2 - shown here with a TS 40mm Super Plossl eyepiece inside.

The 2" Deluxe Eyepiece Projection and Prime Focus Adaptor is a new achievement that offers superior possibilities for photographical applications in most telescopes. It consists of three separate parts that, when used separately, can be used for even more applications, making the TS VPA 2 Deluxe one of our most versatile adaptors. Mechanical quality and finish are excellent.

Telescope Connection

Your telescope must have a 2" focuser or 2" visual back. That's the only requirement to use this adaptor.

Advantages of the TS VPA2 Deluxe

- You can use 1.25" eyepieces with larger physical sizes than in most other projection adaptors, e.g. Plossl eyepieces up to 40mm or Vixen LV eyepieces, ....
Such eyepieces often do not fit into regular projection adaptors but are needed for some kinds of projection photography.

- The T2 adaptor can be moved freely over several centimeters, resulting in a zoom effect as described above in the regular variable adaptor. Also this allows you to move the T2 thread very close to the eyepiece lens, making the adaptor suitable for many compact digital cameras as well, not only SLR cameras.

- The eyepiece and the T2 adaptor are clamped firmly with a brass compression ring.

- The parts that make up the VPA 2 Deluxe can be used separately for additional applications (see below).

The Separate Adaptors
that make up the TS VPA 2 Deluxe. From left to right:

Adaptor 2" on 1.25" with integrated T2 thread and brass compression ring and filter thread

Adaptor T2 on 2"
with brass compression ring

Prime Focus Adaptor 2" on T2
with safety undercut and filter thread

How to Assemble the Adaptor:

Step 1:
Screw the T2 on 2" adaptor onto the 2" on 1.25" adaptor with T2 thread. (parts one and two on the image above).

Step 2:
Insert a suitable projection eyepiece and lock it using the thumbscrew (or single thumbscrew) of the 2" on 1.25" adaptor.

Step 3:
Insert the 2" on T2 adaptor over the eyepiece and clamp it at the desired distance.

The proper order of the items needed for photography. The telescope would be on the left side, the camera on the right side.

Using the VPA 2 Deluxe with SLR Cameras:

The camera is attached to the VPA using a suitable T-ring (available separately) and if desired a T2 extension tube. The farther you extend the variable adaptor (using only the zoom function of the VPA itself or also adding extension tubes) you get a higher zoom factor with any given eyepiece. A too short distance may result in some vignetting towards the edge of the photographical field.

Recommended Eyepieces: 9mm through 15mm focal length

Using Cameras with Integrated Objective Lens (e.g. compact digital cameras)

For this kind of photography which came up only in the last few years an entirely different approach is needed, which is also the reason why most conventional projection adaptors cannot be used. The camera lens must be moved as closely as possible to the eyepiece lens. The eyepiece lens should be as large as possible to minimize vignetting. Follow-up adaptors are available for most compact digital cameras.

Recommended eyepieces:
- TS Super Plossl 25mm and 32mm
- TS SWM eyepieces
- TS WA eyepieces 1.25"

Tipp:

If your eyepiece has a rubber eyeguard you might want to remove it. Then it is often easier to move the 2"-T2 adaptor closer to the eyepiece.

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T2-1.25" Adaptors


Adaptor T2 on 1.25" with additional T2 male thread Short version (15mm)	Adaptor T2 on 1.25" with additional T2 male thread Long version (35mm)

These adaptors resemble good quality eyepiece clamps / visual back adaptors for 1.25" accessories. The adaptors screw onto T2 (M42x0.75) male threads. Eyepieces and other 1.25" accessories are held securely and carefully through a brass compression ring.

Features:

-- T2 female on the telescope side (i.e. the telescope needs to have a T2 male adaptor)
-- brass compression ring
-- black anodized

The adaptors have an additional T2 male thread on the other end. That way you can use the adaptors for eyepiece projection. For this you just require one or more T2 extension tubes.

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2" on 1.25" Adaptors

Left: TS 2-1 / Right: TS 2-1-T2

You can choose between two high quality 2" on 1.25" adaptors. Both offer the same basic features:

Brass Compression Ring
The eyepieces are firmly held through a brass compression ring. This avoids scratches so you don't need to be afraid to use too much pressure to lock the eyepiece, and the mechanism works very well with most eyepieces.

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2" Eyepiece Clamps (Visual Backs)

2" visual backs: TS SC-2 and TS T2-2 - full view
Left: 2" eyepiece clamp with SC female thread / Right: 2" eyepiece clamp with T2 female thread

2" Eyepiece Clamp with SC Female Thread

If you wish to use 2" accessories on a Schmidt-Cassegrain, many Maksutovs and other telescopes with SC thread you can use this adaptor which resembles a 2" visual back with brass compression ring.

You then can use standard 2" star diagonals, adaptors, ...

Advantages Compared to Using an SC Star Diagonal:
Most SC star diagonals do not have the full possible clear aperture, but typically only about 37-38mm. With a 2" diagonal up to 47mm are possible. When using this adaptor you can then use a normal 2" diagonal, so you will reach larger fields of view and better illumination.

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2" Eyepiece Clamp with T2 Female Thread

This adaptor can be used whenever your telescope has a T2 thread, but not real 2". Then you can use eyepieces with a larger field stop diameter than possible with 1.25" eyepieces. The full 2" field usually will not be illuminated, but you still improve illumination compared with 1.25".

You can also use this adaptor on a ( Baader ) coma corrector, so you can then use that corrector visually. But be careful because many Newtonian telescopes do not have a sufficient back focus to support this setup! This adaptor adds about 40mm length, a typical coma corrector adds another 2-5mm.

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2" and 1.25" Extension Tubes


1.25" extension tube 38mm	2" extension tubes 35mm, 50mm and 80mm

2" Extension Tubes (35mm, 50mm and 80mm Length)

In many telescopes the back focus is calculated to support additional accessories like a star diagonal, an SLR camera or other accessories. Then it is not possible to reach focus directly. Examples for this would be most refractors and Newtonians for photography.

Then you can use an extension tube to reach focus if you do not wish to use the supported accessories, e.g. if you want to use a refractor straight-through or use a photographical Newtonian visually.

Our extension tubes have a very high quality and excellent finish. They are anodized and have anti-reflection riffles inside.

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Prime Focus Adaptor 2" on T-2

TS FA 2: 2" on T2 prime focus adapter - full view

Prime Focus Adaptor with 2" Barrel and T2 Male Thread

A very frequently used adaptor for many photographical applications but also for other adaptations. The adaptor has a 2" outside diameter and a T2 (M42 x 0.75) thread. It accepts for instance standard T-rings for SLR cameras.

Safety Undercut
The safety undercut is a security measure to prevent the adaptor (and the possibly quite expensive camera) from dropping out of the focuser.

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T-2 Adaptor with M60 Thread

M60-T2 - prime focus adapter for Synta Newtonians

Adaptor with M60 and T2 Male Threads .....

Newtonian telescopes commonly have a very short back focus distance, meaning that you often cannot reach focus with SLR cameras or other accessories. Fortunately there are many Newtonians whose focusers can be shortened easily:

The Adaptor is Compatible To:

... all focusers with M60 female thread when you unscrew the actual 2" clamp. Examples for this are most Newtonians from Celestron, Skywatcher, ... as well as GSO Newtonians with 2" Rack and Pinion focuser. The adaptor also fits many Vixen telescopes.

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Multi Purpose Rotation System For Astro-Imaging

Variable rotation system that allows you to use 2" filters photographically

MTO 300 + TS Rotation System + Canon EOS camera

Example of use: The TS Rotation System TS ROT 5 used with the MTO 500 tele lens. With this adaptor you can use 2" filters despite the fact that the MTO normally has no provision for it.

TS rotation system - explo

Example: TS ROT 1. This is an adaptor with T2 female thread on one end and T2 male thread on the other end. In between sits the 2" filter thread. The Camera & filter adaptor (No. 2) can be rotated 360°.

The above image shows one complete TS ROT 1 (left adaptor in the image) and the two separate parts (No. 1 and No. 2)

The TS Rotation system is a multi purpose adaptor for astro imaging.

The adaptor has a very short length and can therefore be used even in many telescopes with limited back focus.

For available thread and bayonet options please see the list below!

Applications:

Adaptation of a 2" filter between telescope and camera .... important in systems that regularly have no provision for 2" filters (e.g. MTO tele lenses)

Protection of the camera ... if you have installed a filter it will protect the camera from dust

Quick Release .... You can attach or remove the camera within seconds

360° Rotation ... allows you to rotate the camera easily for the desired image frame

2" Adaptation ... the base adaptor of each TS ROT resembles a short profile 2" clamp. You can use normal 2" accessories (but only a part of their barrel will be held) or with a 1.25" adaptor also 1.25" accessories.

Schematic of the TS Rotation System. Start on the left of the image with the male thread which your telescope or tele lens has (example: MTO1000 has M42 male thread). Continue along the black lines until you have reached whichever accessory you wish to connect at the other end.

The image does not contain all possible accessories.

The image shows optional accessories as well that are not included in the scope of delivery of any TS ROT unit.

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Please send requests or online orders to: sales@telescope-service.com

Digiklemme 1 - Universal Camera Adaptor

Digiklemme 1 .... an extremely flexible mount for attaching compact digital cameras to telescopes and microscopes

Digiklemme in use

Example of use: This image shows an older version of the universal camera adaptor. The current Digiklemme has two screws to lock the central bar in position

An easy and extremely versatile adaptor for attaching a compact digital camera to a telescope or microscope. You usually need no other adaptors.

Which Cameras is the Digiklemme Suitable For?

The Digiklemme works with nearly all compact digital cameras, other compact cameras, camcorders etc. The only condition is that the camera has a 1/4" standard thread in its base and that it is not much heavier than about 500 grams.

Which Instruments is the Digiklemme Suitable For?

The Digiklemme can be attached to all telescopes with 1.25" focuser. An adaptation to spotting scopes, microscopes etc. is usually also possible easily.

A metal clamp goes around the eyepiece and is clamped with a thumbscrew. Eyepieces with an outside diameter between about 30 and 40mm can be used. When using some sort of spacers you can also use smaller eyepieces.

Important Information

For this type of projection you also need an eyepiece between camera and telescope / microscope / spotting scope. Otherwise you don't get an image at all. You should move the camera as close to the eyepiece as possible. Also the eyepiece should have a suitably large lens diameter that is not much smaller than the diameter of the camera's lens.

Within these limits the Digiklemme 1 is an optimized solution that will get the most out of your equipment. You can move the camera so close that you almost touch the eyepiece, for best possible illumination.

Specifications

-- Weight	approx. 260 grams
-- Design	solid metal design
-- Distance (length) between clamp and 1/4" thread	up to approx. 110mm
-- Distance (height) between center of the camera lens and underside of the camera	up to approx. 100mm
-- Suitable for eyepieces (diameter of the eyepiece body)	approx. 30 - 40mm

Scope of Delivery

-- Base plate with elongated hole
-- Central bar
-- Eyepiece clamp. Can be mounted directly on the base plate or on the central bar.
-- no camera is included

Price

Item No.	Short Description	Price - Euros incl. VAT
Digiklemme 1	Universal digital camera adaptor	29.-

Please send requests or online orders to: sales@telescope-service.com

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