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Setup: corrector - flattened t-adapter - varilock - camera/Nikon t-adapter
Now I want to use zwo camera. Need connector or something.
Also: Can I connect a Clicklock to the varilock?
Baader C-Mount T-2 with integrated 1¼" Filterholder # 2958520
You may need an additional T-2-extension to achieve the correct back-focus as specified in the manual of camera or corrector.
There is also Baader 1" C-Mount-Adapter with 1-1/4" Nosepiece length 18mm # 2958515, if you want to use a camera in a st6andard 1.25"-focuser.
To use eyepieces or a camera with 1.25" nosepiece, we also offer several 1.25" eyepiece clamps with T-2-thread, including one ClickLock:
- Baader ClickLock Eyepiece Clamp 1¼" with built in diopter-adjustment # 2458100
Without ClickLock, there are e.g.:
- Baader Focusing Eyepiece Holder 1¼" / T-2 # 2458125
- Ultrashort 1¼" / T-2 Clamp # 2458121
- Baader Variable Locking / Sliding T-2 Focuser # 2458010
The length of the eyepiece clamps is mentioned in the technical details on the website of each product, so you can chose the one which fits best to you needs.
If it is only some millimeters, you may try to move the main mirror with the setting screws which are made for collimation. Unfortunately, there isn't much more to bring the MPCC closer to the mirror (if you don't want to replace the complete focuser).
If you need to get farther away from the telescope, you can add the Finetuning Rings #2958228 or #2958214 to the front of the MPCC.
The range of magnification will be only a few, also the fine pitch leads to a lot of revolution that a change will be seen remarkable. The Vari Lock
is rather made to set it up one time for a certain length.
Both Baader VariLock T-2 (M42x0.75mm) extensions are stepplessly adjustable extension rings, with the added ability to firmly readjust the camera rotation position. By loosening or tightening a locking ring, the inner extension sleeve can be adjusted to the desired length by means of a millimeter scale. A clamping key (hook wrench) for the locking ring is included. Both VariLocks 29 and 46 are the result of an otherwise fruitless search for adjustable extension rings that are absolutely torsion-resistant, because almost all so-called "helical fokusers" are not torsionally stiff.
As further application, the ring with the rotatable T-2 outer thread can be removed by loosening 6 headless set-screws (hexagonal wrench included) and replaced by a separately enclosed adapter with ringed-dovetail (ring-groove), whose 52 mm diameter dovetail can be inserted directly into all Baader T-rings for EOS, Protective for Canon, as well as NEX bayonet cameras – likewise into all other manufacturers standard T-rings with the appropriate 52 mm inner diameter to accommodate a rotating ring. This increases the VariLock clear inner diameter because the common bottleneck at the height of the T-2 thread is getting eliminated. By necessity, the maximum inner diameter of all T-2 adapters is 38mm as standard. On the other hand, the clear inner diameter at this point increases up to 42 mm if one uses the enclosed direct S52 adapter instead.
VariLocks are ideal tools for permanently setting exact focal distances, e.g. for H-alpha solar filters or field correctors/reducers with critical focal position.
Functionality of the VariLock
Both VariLocks consist of several parts:/p>
- an engraved outer housing with six headless set screws and an M48 female thread.
- a knurled M48 locking ring with an oblong hole for engaging the clamping key(6)
- one rotating and removable ring with T-2 outer thread (pre-assembled in 1)
- one separately enclosed T-ring-adapter with S52 ring groove, suitable for all Baader (and many others) bayonet T-rings and Baader Wide-rings
- one clamping key (hook wrench) to lock down the knurled ring (3)
- A hook wrench to loosen or secure the locking ring
- one hexagonal wrench (size 1.3 mm) for interchanging the adapters (4/5)
Both VariLocks are delivered with a pre-installed T-2 adapter(4), so that in the basic configuration a T-2 male/female thread is available on both sides. At the narrowest point (which is the T-2 adapter), the VariLock then has a clear inner diameter of 38 mm. In order to equip the VariLock housing (1/2) with a larger clear inner diameter of 42 mm, use the S52 T-ring adapter(5) instead.To change the adapters, loosen the six hexhead screws with the enclosed hex wrench(7) and replace the T-2 male adapter(4) with the adapter(5) featuring a S52 ring groove.
To adjust the housing length, hold the outer housing (1) and loosen the M48 tube(2) by unthreading the knurled locking ring(3) from part 1 by using the hook wrench(6). The oblong hole in the knurled locking ring serves as an attachment point for the hook of the clamping key, so that the locking ring can be loosened and tightened again. When the locking ring (3) is loosened, the part (2) is turned within part (1) until the desired length is reached. The millimeter scale on part 2 serves as a guide to the set length. The effectively set total length of part 1 and 2 can be read off on the visible side of the locking ring. For precise control, it is recommended to measure the set length with a caliper gauge and to readjust it by loosening the locking ring again, if necessary.
The set length of the VariLock can be read off from the visible side of the locking ring. As soon as the desired length has been reached, tighten the locking ring again until it is completely tight.
To set the Varilock to e.g. 37.5mm, turn the knurled locking ring(3) until the millimeter scale on part 2 shows the value 37.5 mm and hold it with one finger. Now turn the M48 tube(2) together with the locking ring into part 1 until the locking ring is completely in contact with part 1. Only then is the locking ring tightened to final strength with the aid of the hook wrench(6).
The following figure B shows the VariLock 46 with T-2 male thread, set to 37.5 mm overall length.
|Net weight (kg)||0.08|
|Optical length (mm)||29 – 46|
|T-2 Part #||25Y|
|Usage||to set precise focus distance|
|Screw Type||6x M1,3 Allen wrench screws|
|Inner Diameter / Clear Aperture (mm)||mit okularseitigem T-2 Gewindeeinsatz = 38mm mit okularseitiger 52mm Ringschwalbe = 41mm|
|Outer Diameter||50,8 (2")|
|Outer Connection (eyepiece/-camera-sided)||M42 x 0.75 (T-2)|
|Inner Connection (lens sided)||M42 x 0.75 (T-2)|
|Compatible Brands||Astro T-2, Baader Planetarium|
|Type of Adapter||Extension, Variable Focusing|